diff --git a/c++/greptime/v1/region/server.pb.cc b/c++/greptime/v1/region/server.pb.cc
index d7f21a8b..ac69352a 100644
--- a/c++/greptime/v1/region/server.pb.cc
+++ b/c++/greptime/v1/region/server.pb.cc
@@ -430,11 +430,39 @@ struct RegionColumnDefDefaultTypeInternal {
   };
 };
 PROTOBUF_ATTRIBUTE_NO_DESTROY PROTOBUF_CONSTINIT PROTOBUF_ATTRIBUTE_INIT_PRIORITY1 RegionColumnDefDefaultTypeInternal _RegionColumnDef_default_instance_;
+PROTOBUF_CONSTEXPR BulkInsertRequests::BulkInsertRequests(
+    ::_pbi::ConstantInitialized): _impl_{
+    /*decltype(_impl_.requests_)*/{}
+  , /*decltype(_impl_._cached_size_)*/{}} {}
+struct BulkInsertRequestsDefaultTypeInternal {
+  PROTOBUF_CONSTEXPR BulkInsertRequestsDefaultTypeInternal()
+      : _instance(::_pbi::ConstantInitialized{}) {}
+  ~BulkInsertRequestsDefaultTypeInternal() {}
+  union {
+    BulkInsertRequests _instance;
+  };
+};
+PROTOBUF_ATTRIBUTE_NO_DESTROY PROTOBUF_CONSTINIT PROTOBUF_ATTRIBUTE_INIT_PRIORITY1 BulkInsertRequestsDefaultTypeInternal _BulkInsertRequests_default_instance_;
+PROTOBUF_CONSTEXPR BulkInsertRequest::BulkInsertRequest(
+    ::_pbi::ConstantInitialized): _impl_{
+    /*decltype(_impl_.payload_)*/{&::_pbi::fixed_address_empty_string, ::_pbi::ConstantInitialized{}}
+  , /*decltype(_impl_.region_id_)*/uint64_t{0u}
+  , /*decltype(_impl_.payload_type_)*/0
+  , /*decltype(_impl_._cached_size_)*/{}} {}
+struct BulkInsertRequestDefaultTypeInternal {
+  PROTOBUF_CONSTEXPR BulkInsertRequestDefaultTypeInternal()
+      : _instance(::_pbi::ConstantInitialized{}) {}
+  ~BulkInsertRequestDefaultTypeInternal() {}
+  union {
+    BulkInsertRequest _instance;
+  };
+};
+PROTOBUF_ATTRIBUTE_NO_DESTROY PROTOBUF_CONSTINIT PROTOBUF_ATTRIBUTE_INIT_PRIORITY1 BulkInsertRequestDefaultTypeInternal _BulkInsertRequest_default_instance_;
 }  // namespace region
 }  // namespace v1
 }  // namespace greptime
-static ::_pb::Metadata file_level_metadata_greptime_2fv1_2fregion_2fserver_2eproto[30];
-static constexpr ::_pb::EnumDescriptor const** file_level_enum_descriptors_greptime_2fv1_2fregion_2fserver_2eproto = nullptr;
+static ::_pb::Metadata file_level_metadata_greptime_2fv1_2fregion_2fserver_2eproto[32];
+static const ::_pb::EnumDescriptor* file_level_enum_descriptors_greptime_2fv1_2fregion_2fserver_2eproto[1];
 static constexpr ::_pb::ServiceDescriptor const** file_level_service_descriptors_greptime_2fv1_2fregion_2fserver_2eproto = nullptr;
 
 const uint32_t TableStruct_greptime_2fv1_2fregion_2fserver_2eproto::offsets[] PROTOBUF_SECTION_VARIABLE(protodesc_cold) = {
@@ -477,6 +505,7 @@ const uint32_t TableStruct_greptime_2fv1_2fregion_2fserver_2eproto::offsets[] PR
   ::_pbi::kInvalidFieldOffsetTag,
   ::_pbi::kInvalidFieldOffsetTag,
   ::_pbi::kInvalidFieldOffsetTag,
+  ::_pbi::kInvalidFieldOffsetTag,
   PROTOBUF_FIELD_OFFSET(::greptime::v1::region::RegionRequest, _impl_.body_),
   PROTOBUF_FIELD_OFFSET(::greptime::v1::region::RegionResponse_ExtensionsEntry_DoNotUse, _has_bits_),
   PROTOBUF_FIELD_OFFSET(::greptime::v1::region::RegionResponse_ExtensionsEntry_DoNotUse, _internal_metadata_),
@@ -704,38 +733,56 @@ const uint32_t TableStruct_greptime_2fv1_2fregion_2fserver_2eproto::offsets[] PR
   ~0u,  // no _inlined_string_donated_
   PROTOBUF_FIELD_OFFSET(::greptime::v1::region::RegionColumnDef, _impl_.column_def_),
   PROTOBUF_FIELD_OFFSET(::greptime::v1::region::RegionColumnDef, _impl_.column_id_),
+  ~0u,  // no _has_bits_
+  PROTOBUF_FIELD_OFFSET(::greptime::v1::region::BulkInsertRequests, _internal_metadata_),
+  ~0u,  // no _extensions_
+  ~0u,  // no _oneof_case_
+  ~0u,  // no _weak_field_map_
+  ~0u,  // no _inlined_string_donated_
+  PROTOBUF_FIELD_OFFSET(::greptime::v1::region::BulkInsertRequests, _impl_.requests_),
+  ~0u,  // no _has_bits_
+  PROTOBUF_FIELD_OFFSET(::greptime::v1::region::BulkInsertRequest, _internal_metadata_),
+  ~0u,  // no _extensions_
+  ~0u,  // no _oneof_case_
+  ~0u,  // no _weak_field_map_
+  ~0u,  // no _inlined_string_donated_
+  PROTOBUF_FIELD_OFFSET(::greptime::v1::region::BulkInsertRequest, _impl_.region_id_),
+  PROTOBUF_FIELD_OFFSET(::greptime::v1::region::BulkInsertRequest, _impl_.payload_type_),
+  PROTOBUF_FIELD_OFFSET(::greptime::v1::region::BulkInsertRequest, _impl_.payload_),
 };
 static const ::_pbi::MigrationSchema schemas[] PROTOBUF_SECTION_VARIABLE(protodesc_cold) = {
   { 0, 8, -1, sizeof(::greptime::v1::region::RegionRequestHeader_TracingContextEntry_DoNotUse)},
   { 10, -1, -1, sizeof(::greptime::v1::region::RegionRequestHeader)},
   { 19, -1, -1, sizeof(::greptime::v1::region::RegionRequest)},
-  { 40, 48, -1, sizeof(::greptime::v1::region::RegionResponse_ExtensionsEntry_DoNotUse)},
-  { 50, -1, -1, sizeof(::greptime::v1::region::RegionResponse)},
-  { 59, -1, -1, sizeof(::greptime::v1::region::InsertRequests)},
-  { 66, -1, -1, sizeof(::greptime::v1::region::DeleteRequests)},
-  { 73, -1, -1, sizeof(::greptime::v1::region::InsertRequest)},
-  { 81, -1, -1, sizeof(::greptime::v1::region::DeleteRequest)},
-  { 89, -1, -1, sizeof(::greptime::v1::region::QueryRequest)},
-  { 98, -1, -1, sizeof(::greptime::v1::region::CreateRequests)},
-  { 105, 113, -1, sizeof(::greptime::v1::region::CreateRequest_OptionsEntry_DoNotUse)},
-  { 115, -1, -1, sizeof(::greptime::v1::region::CreateRequest)},
-  { 127, -1, -1, sizeof(::greptime::v1::region::DropRequests)},
-  { 134, -1, -1, sizeof(::greptime::v1::region::DropRequest)},
-  { 142, 150, -1, sizeof(::greptime::v1::region::OpenRequest_OptionsEntry_DoNotUse)},
-  { 152, -1, -1, sizeof(::greptime::v1::region::OpenRequest)},
-  { 162, -1, -1, sizeof(::greptime::v1::region::CloseRequest)},
-  { 169, -1, -1, sizeof(::greptime::v1::region::AlterRequests)},
-  { 176, -1, -1, sizeof(::greptime::v1::region::AlterRequest)},
-  { 192, -1, -1, sizeof(::greptime::v1::region::AddColumns)},
-  { 199, -1, -1, sizeof(::greptime::v1::region::DropColumns)},
-  { 206, -1, -1, sizeof(::greptime::v1::region::AddColumn)},
-  { 214, -1, -1, sizeof(::greptime::v1::region::DropColumn)},
-  { 221, -1, -1, sizeof(::greptime::v1::region::FlushRequest)},
-  { 228, -1, -1, sizeof(::greptime::v1::region::Regular)},
-  { 234, -1, -1, sizeof(::greptime::v1::region::StrictWindow)},
-  { 241, -1, -1, sizeof(::greptime::v1::region::CompactRequest)},
-  { 251, -1, -1, sizeof(::greptime::v1::region::TruncateRequest)},
-  { 258, -1, -1, sizeof(::greptime::v1::region::RegionColumnDef)},
+  { 41, 49, -1, sizeof(::greptime::v1::region::RegionResponse_ExtensionsEntry_DoNotUse)},
+  { 51, -1, -1, sizeof(::greptime::v1::region::RegionResponse)},
+  { 60, -1, -1, sizeof(::greptime::v1::region::InsertRequests)},
+  { 67, -1, -1, sizeof(::greptime::v1::region::DeleteRequests)},
+  { 74, -1, -1, sizeof(::greptime::v1::region::InsertRequest)},
+  { 82, -1, -1, sizeof(::greptime::v1::region::DeleteRequest)},
+  { 90, -1, -1, sizeof(::greptime::v1::region::QueryRequest)},
+  { 99, -1, -1, sizeof(::greptime::v1::region::CreateRequests)},
+  { 106, 114, -1, sizeof(::greptime::v1::region::CreateRequest_OptionsEntry_DoNotUse)},
+  { 116, -1, -1, sizeof(::greptime::v1::region::CreateRequest)},
+  { 128, -1, -1, sizeof(::greptime::v1::region::DropRequests)},
+  { 135, -1, -1, sizeof(::greptime::v1::region::DropRequest)},
+  { 143, 151, -1, sizeof(::greptime::v1::region::OpenRequest_OptionsEntry_DoNotUse)},
+  { 153, -1, -1, sizeof(::greptime::v1::region::OpenRequest)},
+  { 163, -1, -1, sizeof(::greptime::v1::region::CloseRequest)},
+  { 170, -1, -1, sizeof(::greptime::v1::region::AlterRequests)},
+  { 177, -1, -1, sizeof(::greptime::v1::region::AlterRequest)},
+  { 193, -1, -1, sizeof(::greptime::v1::region::AddColumns)},
+  { 200, -1, -1, sizeof(::greptime::v1::region::DropColumns)},
+  { 207, -1, -1, sizeof(::greptime::v1::region::AddColumn)},
+  { 215, -1, -1, sizeof(::greptime::v1::region::DropColumn)},
+  { 222, -1, -1, sizeof(::greptime::v1::region::FlushRequest)},
+  { 229, -1, -1, sizeof(::greptime::v1::region::Regular)},
+  { 235, -1, -1, sizeof(::greptime::v1::region::StrictWindow)},
+  { 242, -1, -1, sizeof(::greptime::v1::region::CompactRequest)},
+  { 252, -1, -1, sizeof(::greptime::v1::region::TruncateRequest)},
+  { 259, -1, -1, sizeof(::greptime::v1::region::RegionColumnDef)},
+  { 267, -1, -1, sizeof(::greptime::v1::region::BulkInsertRequests)},
+  { 274, -1, -1, sizeof(::greptime::v1::region::BulkInsertRequest)},
 };
 
 static const ::_pb::Message* const file_default_instances[] = {
@@ -769,6 +816,8 @@ static const ::_pb::Message* const file_default_instances[] = {
   &::greptime::v1::region::_CompactRequest_default_instance_._instance,
   &::greptime::v1::region::_TruncateRequest_default_instance_._instance,
   &::greptime::v1::region::_RegionColumnDef_default_instance_._instance,
+  &::greptime::v1::region::_BulkInsertRequests_default_instance_._instance,
+  &::greptime::v1::region::_BulkInsertRequest_default_instance_._instance,
 };
 
 const char descriptor_table_protodef_greptime_2fv1_2fregion_2fserver_2eproto[] PROTOBUF_SECTION_VARIABLE(protodesc_cold) =
@@ -780,7 +829,7 @@ const char descriptor_table_protodef_greptime_2fv1_2fregion_2fserver_2eproto[] P
   "onRequestHeader.TracingContextEntry\022\016\n\006d"
   "bname\030\003 \001(\t\0220\n\rquery_context\030\006 \001(\0132\031.gre"
   "ptime.v1.QueryContext\0325\n\023TracingContextE"
-  "ntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\0028\001\"\375\005\n"
+  "ntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\0028\001\"\275\006\n"
   "\rRegionRequest\0227\n\006header\030\001 \001(\0132\'.greptim"
   "e.v1.region.RegionRequestHeader\0225\n\007inser"
   "ts\030\003 \001(\0132\".greptime.v1.region.InsertRequ"
@@ -799,73 +848,80 @@ const char descriptor_table_protodef_greptime_2fv1_2fregion_2fserver_2eproto[] P
   "\007creates\030\r \001(\0132\".greptime.v1.region.Crea"
   "teRequestsH\000\0221\n\005drops\030\016 \001(\0132 .greptime.v"
   "1.region.DropRequestsH\000\0223\n\006alters\030\017 \001(\0132"
-  "!.greptime.v1.region.AlterRequestsH\000B\006\n\004"
-  "body\"\317\001\n\016RegionResponse\022+\n\006header\030\001 \001(\0132"
-  "\033.greptime.v1.ResponseHeader\022\025\n\raffected"
-  "_rows\030\002 \001(\004\022F\n\nextensions\030\003 \003(\01322.grepti"
-  "me.v1.region.RegionResponse.ExtensionsEn"
-  "try\0321\n\017ExtensionsEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005v"
-  "alue\030\002 \001(\014:\0028\001\"E\n\016InsertRequests\0223\n\010requ"
-  "ests\030\001 \003(\0132!.greptime.v1.region.InsertRe"
-  "quest\"E\n\016DeleteRequests\0223\n\010requests\030\001 \003("
-  "\0132!.greptime.v1.region.DeleteRequest\"C\n\r"
-  "InsertRequest\022\021\n\tregion_id\030\001 \001(\004\022\037\n\004rows"
-  "\030\002 \001(\0132\021.greptime.v1.Rows\"C\n\rDeleteReque"
-  "st\022\021\n\tregion_id\030\001 \001(\004\022\037\n\004rows\030\002 \001(\0132\021.gr"
-  "eptime.v1.Rows\"h\n\014QueryRequest\0227\n\006header"
-  "\030\001 \001(\0132\'.greptime.v1.region.RegionReques"
-  "tHeader\022\021\n\tregion_id\030\002 \001(\004\022\014\n\004plan\030\003 \001(\014"
-  "\"E\n\016CreateRequests\0223\n\010requests\030\001 \003(\0132!.g"
-  "reptime.v1.region.CreateRequest\"\200\002\n\rCrea"
-  "teRequest\022\021\n\tregion_id\030\001 \001(\004\022\016\n\006engine\030\002"
-  " \001(\t\0228\n\013column_defs\030\003 \003(\0132#.greptime.v1."
-  "region.RegionColumnDef\022\023\n\013primary_key\030\004 "
-  "\003(\r\022\014\n\004path\030\005 \001(\t\022\?\n\007options\030\006 \003(\0132..gre"
-  "ptime.v1.region.CreateRequest.OptionsEnt"
+  "!.greptime.v1.region.AlterRequestsH\000\022>\n\014"
+  "bulk_inserts\030\020 \001(\0132&.greptime.v1.region."
+  "BulkInsertRequestsH\000B\006\n\004body\"\317\001\n\016RegionR"
+  "esponse\022+\n\006header\030\001 \001(\0132\033.greptime.v1.Re"
+  "sponseHeader\022\025\n\raffected_rows\030\002 \001(\004\022F\n\ne"
+  "xtensions\030\003 \003(\01322.greptime.v1.region.Reg"
+  "ionResponse.ExtensionsEntry\0321\n\017Extension"
+  "sEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001(\014:\0028\001\"E"
+  "\n\016InsertRequests\0223\n\010requests\030\001 \003(\0132!.gre"
+  "ptime.v1.region.InsertRequest\"E\n\016DeleteR"
+  "equests\0223\n\010requests\030\001 \003(\0132!.greptime.v1."
+  "region.DeleteRequest\"C\n\rInsertRequest\022\021\n"
+  "\tregion_id\030\001 \001(\004\022\037\n\004rows\030\002 \001(\0132\021.greptim"
+  "e.v1.Rows\"C\n\rDeleteRequest\022\021\n\tregion_id\030"
+  "\001 \001(\004\022\037\n\004rows\030\002 \001(\0132\021.greptime.v1.Rows\"h"
+  "\n\014QueryRequest\0227\n\006header\030\001 \001(\0132\'.greptim"
+  "e.v1.region.RegionRequestHeader\022\021\n\tregio"
+  "n_id\030\002 \001(\004\022\014\n\004plan\030\003 \001(\014\"E\n\016CreateReques"
+  "ts\0223\n\010requests\030\001 \003(\0132!.greptime.v1.regio"
+  "n.CreateRequest\"\200\002\n\rCreateRequest\022\021\n\treg"
+  "ion_id\030\001 \001(\004\022\016\n\006engine\030\002 \001(\t\0228\n\013column_d"
+  "efs\030\003 \003(\0132#.greptime.v1.region.RegionCol"
+  "umnDef\022\023\n\013primary_key\030\004 \003(\r\022\014\n\004path\030\005 \001("
+  "\t\022\?\n\007options\030\006 \003(\0132..greptime.v1.region."
+  "CreateRequest.OptionsEntry\032.\n\014OptionsEnt"
+  "ry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\0028\001\"A\n\014Dr"
+  "opRequests\0221\n\010requests\030\001 \003(\0132\037.greptime."
+  "v1.region.DropRequest\"3\n\013DropRequest\022\021\n\t"
+  "region_id\030\001 \001(\004\022\021\n\tfast_path\030\002 \001(\010\"\255\001\n\013O"
+  "penRequest\022\021\n\tregion_id\030\001 \001(\004\022\016\n\006engine\030"
+  "\002 \001(\t\022\014\n\004path\030\003 \001(\t\022=\n\007options\030\004 \003(\0132,.g"
+  "reptime.v1.region.OpenRequest.OptionsEnt"
   "ry\032.\n\014OptionsEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value"
-  "\030\002 \001(\t:\0028\001\"A\n\014DropRequests\0221\n\010requests\030\001"
-  " \003(\0132\037.greptime.v1.region.DropRequest\"3\n"
-  "\013DropRequest\022\021\n\tregion_id\030\001 \001(\004\022\021\n\tfast_"
-  "path\030\002 \001(\010\"\255\001\n\013OpenRequest\022\021\n\tregion_id\030"
-  "\001 \001(\004\022\016\n\006engine\030\002 \001(\t\022\014\n\004path\030\003 \001(\t\022=\n\007o"
-  "ptions\030\004 \003(\0132,.greptime.v1.region.OpenRe"
-  "quest.OptionsEntry\032.\n\014OptionsEntry\022\013\n\003ke"
-  "y\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\0028\001\"!\n\014CloseReque"
-  "st\022\021\n\tregion_id\030\001 \001(\004\"C\n\rAlterRequests\0222"
-  "\n\010requests\030\001 \003(\0132 .greptime.v1.region.Al"
-  "terRequest\"\306\003\n\014AlterRequest\022\021\n\tregion_id"
-  "\030\001 \001(\004\0225\n\013add_columns\030\002 \001(\0132\036.greptime.v"
-  "1.region.AddColumnsH\000\0227\n\014drop_columns\030\003 "
-  "\001(\0132\037.greptime.v1.region.DropColumnsH\000\022="
-  "\n\023modify_column_types\030\005 \001(\0132\036.greptime.v"
-  "1.ModifyColumnTypesH\000\0229\n\021set_table_optio"
-  "ns\030\006 \001(\0132\034.greptime.v1.SetTableOptionsH\000"
-  "\022=\n\023unset_table_options\030\t \001(\0132\036.greptime"
-  ".v1.UnsetTableOptionsH\000\022*\n\tset_index\030\n \001"
-  "(\0132\025.greptime.v1.SetIndexH\000\022.\n\013unset_ind"
-  "ex\030\013 \001(\0132\027.greptime.v1.UnsetIndexH\000\022\026\n\016s"
-  "chema_version\030\004 \001(\004B\006\n\004kind\"@\n\nAddColumn"
-  "s\0222\n\013add_columns\030\001 \003(\0132\035.greptime.v1.reg"
-  "ion.AddColumn\"C\n\013DropColumns\0224\n\014drop_col"
-  "umns\030\001 \003(\0132\036.greptime.v1.region.DropColu"
-  "mn\"v\n\tAddColumn\0227\n\ncolumn_def\030\001 \001(\0132#.gr"
-  "eptime.v1.region.RegionColumnDef\0220\n\010loca"
-  "tion\030\003 \001(\0132\036.greptime.v1.AddColumnLocati"
-  "on\"\032\n\nDropColumn\022\014\n\004name\030\001 \001(\t\"!\n\014FlushR"
-  "equest\022\021\n\tregion_id\030\001 \001(\004\"\t\n\007Regular\"&\n\014"
-  "StrictWindow\022\026\n\016window_seconds\030\001 \001(\003\"\231\001\n"
-  "\016CompactRequest\022\021\n\tregion_id\030\001 \001(\004\022.\n\007re"
-  "gular\030\002 \001(\0132\033.greptime.v1.region.Regular"
-  "H\000\0229\n\rstrict_window\030\003 \001(\0132 .greptime.v1."
-  "region.StrictWindowH\000B\t\n\007options\"$\n\017Trun"
-  "cateRequest\022\021\n\tregion_id\030\001 \001(\004\"P\n\017Region"
-  "ColumnDef\022*\n\ncolumn_def\030\001 \001(\0132\026.greptime"
-  ".v1.ColumnDef\022\021\n\tcolumn_id\030\002 \001(\r2Y\n\006Regi"
-  "on\022O\n\006Handle\022!.greptime.v1.region.Region"
-  "Request\032\".greptime.v1.region.RegionRespo"
-  "nseB]\n\025io.greptime.v1.regionB\006ServerZ<gi"
-  "thub.com/GreptimeTeam/greptime-proto/go/"
-  "greptime/v1/regionb\006proto3"
+  "\030\002 \001(\t:\0028\001\"!\n\014CloseRequest\022\021\n\tregion_id\030"
+  "\001 \001(\004\"C\n\rAlterRequests\0222\n\010requests\030\001 \003(\013"
+  "2 .greptime.v1.region.AlterRequest\"\306\003\n\014A"
+  "lterRequest\022\021\n\tregion_id\030\001 \001(\004\0225\n\013add_co"
+  "lumns\030\002 \001(\0132\036.greptime.v1.region.AddColu"
+  "mnsH\000\0227\n\014drop_columns\030\003 \001(\0132\037.greptime.v"
+  "1.region.DropColumnsH\000\022=\n\023modify_column_"
+  "types\030\005 \001(\0132\036.greptime.v1.ModifyColumnTy"
+  "pesH\000\0229\n\021set_table_options\030\006 \001(\0132\034.grept"
+  "ime.v1.SetTableOptionsH\000\022=\n\023unset_table_"
+  "options\030\t \001(\0132\036.greptime.v1.UnsetTableOp"
+  "tionsH\000\022*\n\tset_index\030\n \001(\0132\025.greptime.v1"
+  ".SetIndexH\000\022.\n\013unset_index\030\013 \001(\0132\027.grept"
+  "ime.v1.UnsetIndexH\000\022\026\n\016schema_version\030\004 "
+  "\001(\004B\006\n\004kind\"@\n\nAddColumns\0222\n\013add_columns"
+  "\030\001 \003(\0132\035.greptime.v1.region.AddColumn\"C\n"
+  "\013DropColumns\0224\n\014drop_columns\030\001 \003(\0132\036.gre"
+  "ptime.v1.region.DropColumn\"v\n\tAddColumn\022"
+  "7\n\ncolumn_def\030\001 \001(\0132#.greptime.v1.region"
+  ".RegionColumnDef\0220\n\010location\030\003 \001(\0132\036.gre"
+  "ptime.v1.AddColumnLocation\"\032\n\nDropColumn"
+  "\022\014\n\004name\030\001 \001(\t\"!\n\014FlushRequest\022\021\n\tregion"
+  "_id\030\001 \001(\004\"\t\n\007Regular\"&\n\014StrictWindow\022\026\n\016"
+  "window_seconds\030\001 \001(\003\"\231\001\n\016CompactRequest\022"
+  "\021\n\tregion_id\030\001 \001(\004\022.\n\007regular\030\002 \001(\0132\033.gr"
+  "eptime.v1.region.RegularH\000\0229\n\rstrict_win"
+  "dow\030\003 \001(\0132 .greptime.v1.region.StrictWin"
+  "dowH\000B\t\n\007options\"$\n\017TruncateRequest\022\021\n\tr"
+  "egion_id\030\001 \001(\004\"P\n\017RegionColumnDef\022*\n\ncol"
+  "umn_def\030\001 \001(\0132\026.greptime.v1.ColumnDef\022\021\n"
+  "\tcolumn_id\030\002 \001(\r\"M\n\022BulkInsertRequests\0227"
+  "\n\010requests\030\001 \003(\0132%.greptime.v1.region.Bu"
+  "lkInsertRequest\"q\n\021BulkInsertRequest\022\021\n\t"
+  "region_id\030\001 \001(\004\0228\n\014payload_type\030\002 \001(\0162\"."
+  "greptime.v1.region.BulkInsertType\022\017\n\007pay"
+  "load\030\003 \001(\014*\037\n\016BulkInsertType\022\r\n\tARROW_IP"
+  "C\020\0002Y\n\006Region\022O\n\006Handle\022!.greptime.v1.re"
+  "gion.RegionRequest\032\".greptime.v1.region."
+  "RegionResponseB]\n\025io.greptime.v1.regionB"
+  "\006ServerZ<github.com/GreptimeTeam/greptim"
+  "e-proto/go/greptime/v1/regionb\006proto3"
   ;
 static const ::_pbi::DescriptorTable* const descriptor_table_greptime_2fv1_2fregion_2fserver_2eproto_deps[3] = {
   &::descriptor_table_greptime_2fv1_2fcommon_2eproto,
@@ -874,9 +930,9 @@ static const ::_pbi::DescriptorTable* const descriptor_table_greptime_2fv1_2freg
 };
 static ::_pbi::once_flag descriptor_table_greptime_2fv1_2fregion_2fserver_2eproto_once;
 const ::_pbi::DescriptorTable descriptor_table_greptime_2fv1_2fregion_2fserver_2eproto = {
-    false, false, 3746, descriptor_table_protodef_greptime_2fv1_2fregion_2fserver_2eproto,
+    false, false, 4037, descriptor_table_protodef_greptime_2fv1_2fregion_2fserver_2eproto,
     "greptime/v1/region/server.proto",
-    &descriptor_table_greptime_2fv1_2fregion_2fserver_2eproto_once, descriptor_table_greptime_2fv1_2fregion_2fserver_2eproto_deps, 3, 30,
+    &descriptor_table_greptime_2fv1_2fregion_2fserver_2eproto_once, descriptor_table_greptime_2fv1_2fregion_2fserver_2eproto_deps, 3, 32,
     schemas, file_default_instances, TableStruct_greptime_2fv1_2fregion_2fserver_2eproto::offsets,
     file_level_metadata_greptime_2fv1_2fregion_2fserver_2eproto, file_level_enum_descriptors_greptime_2fv1_2fregion_2fserver_2eproto,
     file_level_service_descriptors_greptime_2fv1_2fregion_2fserver_2eproto,
@@ -890,6 +946,19 @@ PROTOBUF_ATTRIBUTE_INIT_PRIORITY2 static ::_pbi::AddDescriptorsRunner dynamic_in
 namespace greptime {
 namespace v1 {
 namespace region {
+const ::PROTOBUF_NAMESPACE_ID::EnumDescriptor* BulkInsertType_descriptor() {
+  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&descriptor_table_greptime_2fv1_2fregion_2fserver_2eproto);
+  return file_level_enum_descriptors_greptime_2fv1_2fregion_2fserver_2eproto[0];
+}
+bool BulkInsertType_IsValid(int value) {
+  switch (value) {
+    case 0:
+      return true;
+    default:
+      return false;
+  }
+}
+
 
 // ===================================================================
 
@@ -1242,6 +1311,7 @@ class RegionRequest::_Internal {
   static const ::greptime::v1::region::CreateRequests& creates(const RegionRequest* msg);
   static const ::greptime::v1::region::DropRequests& drops(const RegionRequest* msg);
   static const ::greptime::v1::region::AlterRequests& alters(const RegionRequest* msg);
+  static const ::greptime::v1::region::BulkInsertRequests& bulk_inserts(const RegionRequest* msg);
 };
 
 const ::greptime::v1::region::RegionRequestHeader&
@@ -1300,6 +1370,10 @@ const ::greptime::v1::region::AlterRequests&
 RegionRequest::_Internal::alters(const RegionRequest* msg) {
   return *msg->_impl_.body_.alters_;
 }
+const ::greptime::v1::region::BulkInsertRequests&
+RegionRequest::_Internal::bulk_inserts(const RegionRequest* msg) {
+  return *msg->_impl_.body_.bulk_inserts_;
+}
 void RegionRequest::set_allocated_inserts(::greptime::v1::region::InsertRequests* inserts) {
   ::PROTOBUF_NAMESPACE_ID::Arena* message_arena = GetArenaForAllocation();
   clear_body();
@@ -1495,6 +1569,21 @@ void RegionRequest::set_allocated_alters(::greptime::v1::region::AlterRequests*
   }
   // @@protoc_insertion_point(field_set_allocated:greptime.v1.region.RegionRequest.alters)
 }
+void RegionRequest::set_allocated_bulk_inserts(::greptime::v1::region::BulkInsertRequests* bulk_inserts) {
+  ::PROTOBUF_NAMESPACE_ID::Arena* message_arena = GetArenaForAllocation();
+  clear_body();
+  if (bulk_inserts) {
+    ::PROTOBUF_NAMESPACE_ID::Arena* submessage_arena =
+      ::PROTOBUF_NAMESPACE_ID::Arena::InternalGetOwningArena(bulk_inserts);
+    if (message_arena != submessage_arena) {
+      bulk_inserts = ::PROTOBUF_NAMESPACE_ID::internal::GetOwnedMessage(
+          message_arena, bulk_inserts, submessage_arena);
+    }
+    set_has_bulk_inserts();
+    _impl_.body_.bulk_inserts_ = bulk_inserts;
+  }
+  // @@protoc_insertion_point(field_set_allocated:greptime.v1.region.RegionRequest.bulk_inserts)
+}
 RegionRequest::RegionRequest(::PROTOBUF_NAMESPACE_ID::Arena* arena,
                          bool is_message_owned)
   : ::PROTOBUF_NAMESPACE_ID::Message(arena, is_message_owned) {
@@ -1581,6 +1670,11 @@ RegionRequest::RegionRequest(const RegionRequest& from)
           from._internal_alters());
       break;
     }
+    case kBulkInserts: {
+      _this->_internal_mutable_bulk_inserts()->::greptime::v1::region::BulkInsertRequests::MergeFrom(
+          from._internal_bulk_inserts());
+      break;
+    }
     case BODY_NOT_SET: {
       break;
     }
@@ -1703,6 +1797,12 @@ void RegionRequest::clear_body() {
       }
       break;
     }
+    case kBulkInserts: {
+      if (GetArenaForAllocation() == nullptr) {
+        delete _impl_.body_.bulk_inserts_;
+      }
+      break;
+    }
     case BODY_NOT_SET: {
       break;
     }
@@ -1843,6 +1943,14 @@ const char* RegionRequest::_InternalParse(const char* ptr, ::_pbi::ParseContext*
         } else
           goto handle_unusual;
         continue;
+      // .greptime.v1.region.BulkInsertRequests bulk_inserts = 16;
+      case 16:
+        if (PROTOBUF_PREDICT_TRUE(static_cast<uint8_t>(tag) == 130)) {
+          ptr = ctx->ParseMessage(_internal_mutable_bulk_inserts(), ptr);
+          CHK_(ptr);
+        } else
+          goto handle_unusual;
+        continue;
       default:
         goto handle_unusual;
     }  // switch
@@ -1970,6 +2078,13 @@ uint8_t* RegionRequest::_InternalSerialize(
         _Internal::alters(this).GetCachedSize(), target, stream);
   }
 
+  // .greptime.v1.region.BulkInsertRequests bulk_inserts = 16;
+  if (_internal_has_bulk_inserts()) {
+    target = ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::
+      InternalWriteMessage(16, _Internal::bulk_inserts(this),
+        _Internal::bulk_inserts(this).GetCachedSize(), target, stream);
+  }
+
   if (PROTOBUF_PREDICT_FALSE(_internal_metadata_.have_unknown_fields())) {
     target = ::_pbi::WireFormat::InternalSerializeUnknownFieldsToArray(
         _internal_metadata_.unknown_fields<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>(::PROTOBUF_NAMESPACE_ID::UnknownFieldSet::default_instance), target, stream);
@@ -2085,6 +2200,13 @@ size_t RegionRequest::ByteSizeLong() const {
           *_impl_.body_.alters_);
       break;
     }
+    // .greptime.v1.region.BulkInsertRequests bulk_inserts = 16;
+    case kBulkInserts: {
+      total_size += 2 +
+        ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::MessageSize(
+          *_impl_.body_.bulk_inserts_);
+      break;
+    }
     case BODY_NOT_SET: {
       break;
     }
@@ -2177,6 +2299,11 @@ void RegionRequest::MergeImpl(::PROTOBUF_NAMESPACE_ID::Message& to_msg, const ::
           from._internal_alters());
       break;
     }
+    case kBulkInserts: {
+      _this->_internal_mutable_bulk_inserts()->::greptime::v1::region::BulkInsertRequests::MergeFrom(
+          from._internal_bulk_inserts());
+      break;
+    }
     case BODY_NOT_SET: {
       break;
     }
@@ -8016,6 +8143,452 @@ ::PROTOBUF_NAMESPACE_ID::Metadata RegionColumnDef::GetMetadata() const {
       file_level_metadata_greptime_2fv1_2fregion_2fserver_2eproto[29]);
 }
 
+// ===================================================================
+
+class BulkInsertRequests::_Internal {
+ public:
+};
+
+BulkInsertRequests::BulkInsertRequests(::PROTOBUF_NAMESPACE_ID::Arena* arena,
+                         bool is_message_owned)
+  : ::PROTOBUF_NAMESPACE_ID::Message(arena, is_message_owned) {
+  SharedCtor(arena, is_message_owned);
+  // @@protoc_insertion_point(arena_constructor:greptime.v1.region.BulkInsertRequests)
+}
+BulkInsertRequests::BulkInsertRequests(const BulkInsertRequests& from)
+  : ::PROTOBUF_NAMESPACE_ID::Message() {
+  BulkInsertRequests* const _this = this; (void)_this;
+  new (&_impl_) Impl_{
+      decltype(_impl_.requests_){from._impl_.requests_}
+    , /*decltype(_impl_._cached_size_)*/{}};
+
+  _internal_metadata_.MergeFrom<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>(from._internal_metadata_);
+  // @@protoc_insertion_point(copy_constructor:greptime.v1.region.BulkInsertRequests)
+}
+
+inline void BulkInsertRequests::SharedCtor(
+    ::_pb::Arena* arena, bool is_message_owned) {
+  (void)arena;
+  (void)is_message_owned;
+  new (&_impl_) Impl_{
+      decltype(_impl_.requests_){arena}
+    , /*decltype(_impl_._cached_size_)*/{}
+  };
+}
+
+BulkInsertRequests::~BulkInsertRequests() {
+  // @@protoc_insertion_point(destructor:greptime.v1.region.BulkInsertRequests)
+  if (auto *arena = _internal_metadata_.DeleteReturnArena<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>()) {
+  (void)arena;
+    return;
+  }
+  SharedDtor();
+}
+
+inline void BulkInsertRequests::SharedDtor() {
+  GOOGLE_DCHECK(GetArenaForAllocation() == nullptr);
+  _impl_.requests_.~RepeatedPtrField();
+}
+
+void BulkInsertRequests::SetCachedSize(int size) const {
+  _impl_._cached_size_.Set(size);
+}
+
+void BulkInsertRequests::Clear() {
+// @@protoc_insertion_point(message_clear_start:greptime.v1.region.BulkInsertRequests)
+  uint32_t cached_has_bits = 0;
+  // Prevent compiler warnings about cached_has_bits being unused
+  (void) cached_has_bits;
+
+  _impl_.requests_.Clear();
+  _internal_metadata_.Clear<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>();
+}
+
+const char* BulkInsertRequests::_InternalParse(const char* ptr, ::_pbi::ParseContext* ctx) {
+#define CHK_(x) if (PROTOBUF_PREDICT_FALSE(!(x))) goto failure
+  while (!ctx->Done(&ptr)) {
+    uint32_t tag;
+    ptr = ::_pbi::ReadTag(ptr, &tag);
+    switch (tag >> 3) {
+      // repeated .greptime.v1.region.BulkInsertRequest requests = 1;
+      case 1:
+        if (PROTOBUF_PREDICT_TRUE(static_cast<uint8_t>(tag) == 10)) {
+          ptr -= 1;
+          do {
+            ptr += 1;
+            ptr = ctx->ParseMessage(_internal_add_requests(), ptr);
+            CHK_(ptr);
+            if (!ctx->DataAvailable(ptr)) break;
+          } while (::PROTOBUF_NAMESPACE_ID::internal::ExpectTag<10>(ptr));
+        } else
+          goto handle_unusual;
+        continue;
+      default:
+        goto handle_unusual;
+    }  // switch
+  handle_unusual:
+    if ((tag == 0) || ((tag & 7) == 4)) {
+      CHK_(ptr);
+      ctx->SetLastTag(tag);
+      goto message_done;
+    }
+    ptr = UnknownFieldParse(
+        tag,
+        _internal_metadata_.mutable_unknown_fields<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>(),
+        ptr, ctx);
+    CHK_(ptr != nullptr);
+  }  // while
+message_done:
+  return ptr;
+failure:
+  ptr = nullptr;
+  goto message_done;
+#undef CHK_
+}
+
+uint8_t* BulkInsertRequests::_InternalSerialize(
+    uint8_t* target, ::PROTOBUF_NAMESPACE_ID::io::EpsCopyOutputStream* stream) const {
+  // @@protoc_insertion_point(serialize_to_array_start:greptime.v1.region.BulkInsertRequests)
+  uint32_t cached_has_bits = 0;
+  (void) cached_has_bits;
+
+  // repeated .greptime.v1.region.BulkInsertRequest requests = 1;
+  for (unsigned i = 0,
+      n = static_cast<unsigned>(this->_internal_requests_size()); i < n; i++) {
+    const auto& repfield = this->_internal_requests(i);
+    target = ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::
+        InternalWriteMessage(1, repfield, repfield.GetCachedSize(), target, stream);
+  }
+
+  if (PROTOBUF_PREDICT_FALSE(_internal_metadata_.have_unknown_fields())) {
+    target = ::_pbi::WireFormat::InternalSerializeUnknownFieldsToArray(
+        _internal_metadata_.unknown_fields<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>(::PROTOBUF_NAMESPACE_ID::UnknownFieldSet::default_instance), target, stream);
+  }
+  // @@protoc_insertion_point(serialize_to_array_end:greptime.v1.region.BulkInsertRequests)
+  return target;
+}
+
+size_t BulkInsertRequests::ByteSizeLong() const {
+// @@protoc_insertion_point(message_byte_size_start:greptime.v1.region.BulkInsertRequests)
+  size_t total_size = 0;
+
+  uint32_t cached_has_bits = 0;
+  // Prevent compiler warnings about cached_has_bits being unused
+  (void) cached_has_bits;
+
+  // repeated .greptime.v1.region.BulkInsertRequest requests = 1;
+  total_size += 1UL * this->_internal_requests_size();
+  for (const auto& msg : this->_impl_.requests_) {
+    total_size +=
+      ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::MessageSize(msg);
+  }
+
+  return MaybeComputeUnknownFieldsSize(total_size, &_impl_._cached_size_);
+}
+
+const ::PROTOBUF_NAMESPACE_ID::Message::ClassData BulkInsertRequests::_class_data_ = {
+    ::PROTOBUF_NAMESPACE_ID::Message::CopyWithSourceCheck,
+    BulkInsertRequests::MergeImpl
+};
+const ::PROTOBUF_NAMESPACE_ID::Message::ClassData*BulkInsertRequests::GetClassData() const { return &_class_data_; }
+
+
+void BulkInsertRequests::MergeImpl(::PROTOBUF_NAMESPACE_ID::Message& to_msg, const ::PROTOBUF_NAMESPACE_ID::Message& from_msg) {
+  auto* const _this = static_cast<BulkInsertRequests*>(&to_msg);
+  auto& from = static_cast<const BulkInsertRequests&>(from_msg);
+  // @@protoc_insertion_point(class_specific_merge_from_start:greptime.v1.region.BulkInsertRequests)
+  GOOGLE_DCHECK_NE(&from, _this);
+  uint32_t cached_has_bits = 0;
+  (void) cached_has_bits;
+
+  _this->_impl_.requests_.MergeFrom(from._impl_.requests_);
+  _this->_internal_metadata_.MergeFrom<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>(from._internal_metadata_);
+}
+
+void BulkInsertRequests::CopyFrom(const BulkInsertRequests& from) {
+// @@protoc_insertion_point(class_specific_copy_from_start:greptime.v1.region.BulkInsertRequests)
+  if (&from == this) return;
+  Clear();
+  MergeFrom(from);
+}
+
+bool BulkInsertRequests::IsInitialized() const {
+  return true;
+}
+
+void BulkInsertRequests::InternalSwap(BulkInsertRequests* other) {
+  using std::swap;
+  _internal_metadata_.InternalSwap(&other->_internal_metadata_);
+  _impl_.requests_.InternalSwap(&other->_impl_.requests_);
+}
+
+::PROTOBUF_NAMESPACE_ID::Metadata BulkInsertRequests::GetMetadata() const {
+  return ::_pbi::AssignDescriptors(
+      &descriptor_table_greptime_2fv1_2fregion_2fserver_2eproto_getter, &descriptor_table_greptime_2fv1_2fregion_2fserver_2eproto_once,
+      file_level_metadata_greptime_2fv1_2fregion_2fserver_2eproto[30]);
+}
+
+// ===================================================================
+
+class BulkInsertRequest::_Internal {
+ public:
+};
+
+BulkInsertRequest::BulkInsertRequest(::PROTOBUF_NAMESPACE_ID::Arena* arena,
+                         bool is_message_owned)
+  : ::PROTOBUF_NAMESPACE_ID::Message(arena, is_message_owned) {
+  SharedCtor(arena, is_message_owned);
+  // @@protoc_insertion_point(arena_constructor:greptime.v1.region.BulkInsertRequest)
+}
+BulkInsertRequest::BulkInsertRequest(const BulkInsertRequest& from)
+  : ::PROTOBUF_NAMESPACE_ID::Message() {
+  BulkInsertRequest* const _this = this; (void)_this;
+  new (&_impl_) Impl_{
+      decltype(_impl_.payload_){}
+    , decltype(_impl_.region_id_){}
+    , decltype(_impl_.payload_type_){}
+    , /*decltype(_impl_._cached_size_)*/{}};
+
+  _internal_metadata_.MergeFrom<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>(from._internal_metadata_);
+  _impl_.payload_.InitDefault();
+  #ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
+    _impl_.payload_.Set("", GetArenaForAllocation());
+  #endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  if (!from._internal_payload().empty()) {
+    _this->_impl_.payload_.Set(from._internal_payload(), 
+      _this->GetArenaForAllocation());
+  }
+  ::memcpy(&_impl_.region_id_, &from._impl_.region_id_,
+    static_cast<size_t>(reinterpret_cast<char*>(&_impl_.payload_type_) -
+    reinterpret_cast<char*>(&_impl_.region_id_)) + sizeof(_impl_.payload_type_));
+  // @@protoc_insertion_point(copy_constructor:greptime.v1.region.BulkInsertRequest)
+}
+
+inline void BulkInsertRequest::SharedCtor(
+    ::_pb::Arena* arena, bool is_message_owned) {
+  (void)arena;
+  (void)is_message_owned;
+  new (&_impl_) Impl_{
+      decltype(_impl_.payload_){}
+    , decltype(_impl_.region_id_){uint64_t{0u}}
+    , decltype(_impl_.payload_type_){0}
+    , /*decltype(_impl_._cached_size_)*/{}
+  };
+  _impl_.payload_.InitDefault();
+  #ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
+    _impl_.payload_.Set("", GetArenaForAllocation());
+  #endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
+}
+
+BulkInsertRequest::~BulkInsertRequest() {
+  // @@protoc_insertion_point(destructor:greptime.v1.region.BulkInsertRequest)
+  if (auto *arena = _internal_metadata_.DeleteReturnArena<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>()) {
+  (void)arena;
+    return;
+  }
+  SharedDtor();
+}
+
+inline void BulkInsertRequest::SharedDtor() {
+  GOOGLE_DCHECK(GetArenaForAllocation() == nullptr);
+  _impl_.payload_.Destroy();
+}
+
+void BulkInsertRequest::SetCachedSize(int size) const {
+  _impl_._cached_size_.Set(size);
+}
+
+void BulkInsertRequest::Clear() {
+// @@protoc_insertion_point(message_clear_start:greptime.v1.region.BulkInsertRequest)
+  uint32_t cached_has_bits = 0;
+  // Prevent compiler warnings about cached_has_bits being unused
+  (void) cached_has_bits;
+
+  _impl_.payload_.ClearToEmpty();
+  ::memset(&_impl_.region_id_, 0, static_cast<size_t>(
+      reinterpret_cast<char*>(&_impl_.payload_type_) -
+      reinterpret_cast<char*>(&_impl_.region_id_)) + sizeof(_impl_.payload_type_));
+  _internal_metadata_.Clear<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>();
+}
+
+const char* BulkInsertRequest::_InternalParse(const char* ptr, ::_pbi::ParseContext* ctx) {
+#define CHK_(x) if (PROTOBUF_PREDICT_FALSE(!(x))) goto failure
+  while (!ctx->Done(&ptr)) {
+    uint32_t tag;
+    ptr = ::_pbi::ReadTag(ptr, &tag);
+    switch (tag >> 3) {
+      // uint64 region_id = 1;
+      case 1:
+        if (PROTOBUF_PREDICT_TRUE(static_cast<uint8_t>(tag) == 8)) {
+          _impl_.region_id_ = ::PROTOBUF_NAMESPACE_ID::internal::ReadVarint64(&ptr);
+          CHK_(ptr);
+        } else
+          goto handle_unusual;
+        continue;
+      // .greptime.v1.region.BulkInsertType payload_type = 2;
+      case 2:
+        if (PROTOBUF_PREDICT_TRUE(static_cast<uint8_t>(tag) == 16)) {
+          uint64_t val = ::PROTOBUF_NAMESPACE_ID::internal::ReadVarint64(&ptr);
+          CHK_(ptr);
+          _internal_set_payload_type(static_cast<::greptime::v1::region::BulkInsertType>(val));
+        } else
+          goto handle_unusual;
+        continue;
+      // bytes payload = 3;
+      case 3:
+        if (PROTOBUF_PREDICT_TRUE(static_cast<uint8_t>(tag) == 26)) {
+          auto str = _internal_mutable_payload();
+          ptr = ::_pbi::InlineGreedyStringParser(str, ptr, ctx);
+          CHK_(ptr);
+        } else
+          goto handle_unusual;
+        continue;
+      default:
+        goto handle_unusual;
+    }  // switch
+  handle_unusual:
+    if ((tag == 0) || ((tag & 7) == 4)) {
+      CHK_(ptr);
+      ctx->SetLastTag(tag);
+      goto message_done;
+    }
+    ptr = UnknownFieldParse(
+        tag,
+        _internal_metadata_.mutable_unknown_fields<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>(),
+        ptr, ctx);
+    CHK_(ptr != nullptr);
+  }  // while
+message_done:
+  return ptr;
+failure:
+  ptr = nullptr;
+  goto message_done;
+#undef CHK_
+}
+
+uint8_t* BulkInsertRequest::_InternalSerialize(
+    uint8_t* target, ::PROTOBUF_NAMESPACE_ID::io::EpsCopyOutputStream* stream) const {
+  // @@protoc_insertion_point(serialize_to_array_start:greptime.v1.region.BulkInsertRequest)
+  uint32_t cached_has_bits = 0;
+  (void) cached_has_bits;
+
+  // uint64 region_id = 1;
+  if (this->_internal_region_id() != 0) {
+    target = stream->EnsureSpace(target);
+    target = ::_pbi::WireFormatLite::WriteUInt64ToArray(1, this->_internal_region_id(), target);
+  }
+
+  // .greptime.v1.region.BulkInsertType payload_type = 2;
+  if (this->_internal_payload_type() != 0) {
+    target = stream->EnsureSpace(target);
+    target = ::_pbi::WireFormatLite::WriteEnumToArray(
+      2, this->_internal_payload_type(), target);
+  }
+
+  // bytes payload = 3;
+  if (!this->_internal_payload().empty()) {
+    target = stream->WriteBytesMaybeAliased(
+        3, this->_internal_payload(), target);
+  }
+
+  if (PROTOBUF_PREDICT_FALSE(_internal_metadata_.have_unknown_fields())) {
+    target = ::_pbi::WireFormat::InternalSerializeUnknownFieldsToArray(
+        _internal_metadata_.unknown_fields<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>(::PROTOBUF_NAMESPACE_ID::UnknownFieldSet::default_instance), target, stream);
+  }
+  // @@protoc_insertion_point(serialize_to_array_end:greptime.v1.region.BulkInsertRequest)
+  return target;
+}
+
+size_t BulkInsertRequest::ByteSizeLong() const {
+// @@protoc_insertion_point(message_byte_size_start:greptime.v1.region.BulkInsertRequest)
+  size_t total_size = 0;
+
+  uint32_t cached_has_bits = 0;
+  // Prevent compiler warnings about cached_has_bits being unused
+  (void) cached_has_bits;
+
+  // bytes payload = 3;
+  if (!this->_internal_payload().empty()) {
+    total_size += 1 +
+      ::PROTOBUF_NAMESPACE_ID::internal::WireFormatLite::BytesSize(
+        this->_internal_payload());
+  }
+
+  // uint64 region_id = 1;
+  if (this->_internal_region_id() != 0) {
+    total_size += ::_pbi::WireFormatLite::UInt64SizePlusOne(this->_internal_region_id());
+  }
+
+  // .greptime.v1.region.BulkInsertType payload_type = 2;
+  if (this->_internal_payload_type() != 0) {
+    total_size += 1 +
+      ::_pbi::WireFormatLite::EnumSize(this->_internal_payload_type());
+  }
+
+  return MaybeComputeUnknownFieldsSize(total_size, &_impl_._cached_size_);
+}
+
+const ::PROTOBUF_NAMESPACE_ID::Message::ClassData BulkInsertRequest::_class_data_ = {
+    ::PROTOBUF_NAMESPACE_ID::Message::CopyWithSourceCheck,
+    BulkInsertRequest::MergeImpl
+};
+const ::PROTOBUF_NAMESPACE_ID::Message::ClassData*BulkInsertRequest::GetClassData() const { return &_class_data_; }
+
+
+void BulkInsertRequest::MergeImpl(::PROTOBUF_NAMESPACE_ID::Message& to_msg, const ::PROTOBUF_NAMESPACE_ID::Message& from_msg) {
+  auto* const _this = static_cast<BulkInsertRequest*>(&to_msg);
+  auto& from = static_cast<const BulkInsertRequest&>(from_msg);
+  // @@protoc_insertion_point(class_specific_merge_from_start:greptime.v1.region.BulkInsertRequest)
+  GOOGLE_DCHECK_NE(&from, _this);
+  uint32_t cached_has_bits = 0;
+  (void) cached_has_bits;
+
+  if (!from._internal_payload().empty()) {
+    _this->_internal_set_payload(from._internal_payload());
+  }
+  if (from._internal_region_id() != 0) {
+    _this->_internal_set_region_id(from._internal_region_id());
+  }
+  if (from._internal_payload_type() != 0) {
+    _this->_internal_set_payload_type(from._internal_payload_type());
+  }
+  _this->_internal_metadata_.MergeFrom<::PROTOBUF_NAMESPACE_ID::UnknownFieldSet>(from._internal_metadata_);
+}
+
+void BulkInsertRequest::CopyFrom(const BulkInsertRequest& from) {
+// @@protoc_insertion_point(class_specific_copy_from_start:greptime.v1.region.BulkInsertRequest)
+  if (&from == this) return;
+  Clear();
+  MergeFrom(from);
+}
+
+bool BulkInsertRequest::IsInitialized() const {
+  return true;
+}
+
+void BulkInsertRequest::InternalSwap(BulkInsertRequest* other) {
+  using std::swap;
+  auto* lhs_arena = GetArenaForAllocation();
+  auto* rhs_arena = other->GetArenaForAllocation();
+  _internal_metadata_.InternalSwap(&other->_internal_metadata_);
+  ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr::InternalSwap(
+      &_impl_.payload_, lhs_arena,
+      &other->_impl_.payload_, rhs_arena
+  );
+  ::PROTOBUF_NAMESPACE_ID::internal::memswap<
+      PROTOBUF_FIELD_OFFSET(BulkInsertRequest, _impl_.payload_type_)
+      + sizeof(BulkInsertRequest::_impl_.payload_type_)
+      - PROTOBUF_FIELD_OFFSET(BulkInsertRequest, _impl_.region_id_)>(
+          reinterpret_cast<char*>(&_impl_.region_id_),
+          reinterpret_cast<char*>(&other->_impl_.region_id_));
+}
+
+::PROTOBUF_NAMESPACE_ID::Metadata BulkInsertRequest::GetMetadata() const {
+  return ::_pbi::AssignDescriptors(
+      &descriptor_table_greptime_2fv1_2fregion_2fserver_2eproto_getter, &descriptor_table_greptime_2fv1_2fregion_2fserver_2eproto_once,
+      file_level_metadata_greptime_2fv1_2fregion_2fserver_2eproto[31]);
+}
+
 // @@protoc_insertion_point(namespace_scope)
 }  // namespace region
 }  // namespace v1
@@ -8141,6 +8714,14 @@ template<> PROTOBUF_NOINLINE ::greptime::v1::region::RegionColumnDef*
 Arena::CreateMaybeMessage< ::greptime::v1::region::RegionColumnDef >(Arena* arena) {
   return Arena::CreateMessageInternal< ::greptime::v1::region::RegionColumnDef >(arena);
 }
+template<> PROTOBUF_NOINLINE ::greptime::v1::region::BulkInsertRequests*
+Arena::CreateMaybeMessage< ::greptime::v1::region::BulkInsertRequests >(Arena* arena) {
+  return Arena::CreateMessageInternal< ::greptime::v1::region::BulkInsertRequests >(arena);
+}
+template<> PROTOBUF_NOINLINE ::greptime::v1::region::BulkInsertRequest*
+Arena::CreateMaybeMessage< ::greptime::v1::region::BulkInsertRequest >(Arena* arena) {
+  return Arena::CreateMessageInternal< ::greptime::v1::region::BulkInsertRequest >(arena);
+}
 PROTOBUF_NAMESPACE_CLOSE
 
 // @@protoc_insertion_point(global_scope)
diff --git a/c++/greptime/v1/region/server.pb.h b/c++/greptime/v1/region/server.pb.h
index 241fefc3..ee72167e 100644
--- a/c++/greptime/v1/region/server.pb.h
+++ b/c++/greptime/v1/region/server.pb.h
@@ -33,6 +33,7 @@
 #include <google/protobuf/map.h>  // IWYU pragma: export
 #include <google/protobuf/map_entry.h>
 #include <google/protobuf/map_field_inl.h>
+#include <google/protobuf/generated_enum_reflection.h>
 #include <google/protobuf/unknown_field_set.h>
 #include "greptime/v1/common.pb.h"
 #include "greptime/v1/row.pb.h"
@@ -66,6 +67,12 @@ extern AlterRequestDefaultTypeInternal _AlterRequest_default_instance_;
 class AlterRequests;
 struct AlterRequestsDefaultTypeInternal;
 extern AlterRequestsDefaultTypeInternal _AlterRequests_default_instance_;
+class BulkInsertRequest;
+struct BulkInsertRequestDefaultTypeInternal;
+extern BulkInsertRequestDefaultTypeInternal _BulkInsertRequest_default_instance_;
+class BulkInsertRequests;
+struct BulkInsertRequestsDefaultTypeInternal;
+extern BulkInsertRequestsDefaultTypeInternal _BulkInsertRequests_default_instance_;
 class CloseRequest;
 struct CloseRequestDefaultTypeInternal;
 extern CloseRequestDefaultTypeInternal _CloseRequest_default_instance_;
@@ -152,6 +159,8 @@ template<> ::greptime::v1::region::AddColumn* Arena::CreateMaybeMessage<::grepti
 template<> ::greptime::v1::region::AddColumns* Arena::CreateMaybeMessage<::greptime::v1::region::AddColumns>(Arena*);
 template<> ::greptime::v1::region::AlterRequest* Arena::CreateMaybeMessage<::greptime::v1::region::AlterRequest>(Arena*);
 template<> ::greptime::v1::region::AlterRequests* Arena::CreateMaybeMessage<::greptime::v1::region::AlterRequests>(Arena*);
+template<> ::greptime::v1::region::BulkInsertRequest* Arena::CreateMaybeMessage<::greptime::v1::region::BulkInsertRequest>(Arena*);
+template<> ::greptime::v1::region::BulkInsertRequests* Arena::CreateMaybeMessage<::greptime::v1::region::BulkInsertRequests>(Arena*);
 template<> ::greptime::v1::region::CloseRequest* Arena::CreateMaybeMessage<::greptime::v1::region::CloseRequest>(Arena*);
 template<> ::greptime::v1::region::CompactRequest* Arena::CreateMaybeMessage<::greptime::v1::region::CompactRequest>(Arena*);
 template<> ::greptime::v1::region::CreateRequest* Arena::CreateMaybeMessage<::greptime::v1::region::CreateRequest>(Arena*);
@@ -183,6 +192,30 @@ namespace greptime {
 namespace v1 {
 namespace region {
 
+enum BulkInsertType : int {
+  ARROW_IPC = 0,
+  BulkInsertType_INT_MIN_SENTINEL_DO_NOT_USE_ = std::numeric_limits<int32_t>::min(),
+  BulkInsertType_INT_MAX_SENTINEL_DO_NOT_USE_ = std::numeric_limits<int32_t>::max()
+};
+bool BulkInsertType_IsValid(int value);
+constexpr BulkInsertType BulkInsertType_MIN = ARROW_IPC;
+constexpr BulkInsertType BulkInsertType_MAX = ARROW_IPC;
+constexpr int BulkInsertType_ARRAYSIZE = BulkInsertType_MAX + 1;
+
+const ::PROTOBUF_NAMESPACE_ID::EnumDescriptor* BulkInsertType_descriptor();
+template<typename T>
+inline const std::string& BulkInsertType_Name(T enum_t_value) {
+  static_assert(::std::is_same<T, BulkInsertType>::value ||
+    ::std::is_integral<T>::value,
+    "Incorrect type passed to function BulkInsertType_Name.");
+  return ::PROTOBUF_NAMESPACE_ID::internal::NameOfEnum(
+    BulkInsertType_descriptor(), enum_t_value);
+}
+inline bool BulkInsertType_Parse(
+    ::PROTOBUF_NAMESPACE_ID::ConstStringParam name, BulkInsertType* value) {
+  return ::PROTOBUF_NAMESPACE_ID::internal::ParseNamedEnum<BulkInsertType>(
+    BulkInsertType_descriptor(), name, value);
+}
 // ===================================================================
 
 class RegionRequestHeader_TracingContextEntry_DoNotUse : public ::PROTOBUF_NAMESPACE_ID::internal::MapEntry<RegionRequestHeader_TracingContextEntry_DoNotUse, 
@@ -469,6 +502,7 @@ class RegionRequest final :
     kCreates = 13,
     kDrops = 14,
     kAlters = 15,
+    kBulkInserts = 16,
     BODY_NOT_SET = 0,
   };
 
@@ -564,6 +598,7 @@ class RegionRequest final :
     kCreatesFieldNumber = 13,
     kDropsFieldNumber = 14,
     kAltersFieldNumber = 15,
+    kBulkInsertsFieldNumber = 16,
   };
   // .greptime.v1.region.RegionRequestHeader header = 1;
   bool has_header() const;
@@ -817,6 +852,24 @@ class RegionRequest final :
       ::greptime::v1::region::AlterRequests* alters);
   ::greptime::v1::region::AlterRequests* unsafe_arena_release_alters();
 
+  // .greptime.v1.region.BulkInsertRequests bulk_inserts = 16;
+  bool has_bulk_inserts() const;
+  private:
+  bool _internal_has_bulk_inserts() const;
+  public:
+  void clear_bulk_inserts();
+  const ::greptime::v1::region::BulkInsertRequests& bulk_inserts() const;
+  PROTOBUF_NODISCARD ::greptime::v1::region::BulkInsertRequests* release_bulk_inserts();
+  ::greptime::v1::region::BulkInsertRequests* mutable_bulk_inserts();
+  void set_allocated_bulk_inserts(::greptime::v1::region::BulkInsertRequests* bulk_inserts);
+  private:
+  const ::greptime::v1::region::BulkInsertRequests& _internal_bulk_inserts() const;
+  ::greptime::v1::region::BulkInsertRequests* _internal_mutable_bulk_inserts();
+  public:
+  void unsafe_arena_set_allocated_bulk_inserts(
+      ::greptime::v1::region::BulkInsertRequests* bulk_inserts);
+  ::greptime::v1::region::BulkInsertRequests* unsafe_arena_release_bulk_inserts();
+
   void clear_body();
   BodyCase body_case() const;
   // @@protoc_insertion_point(class_scope:greptime.v1.region.RegionRequest)
@@ -835,6 +888,7 @@ class RegionRequest final :
   void set_has_creates();
   void set_has_drops();
   void set_has_alters();
+  void set_has_bulk_inserts();
 
   inline bool has_body() const;
   inline void clear_has_body();
@@ -860,6 +914,7 @@ class RegionRequest final :
       ::greptime::v1::region::CreateRequests* creates_;
       ::greptime::v1::region::DropRequests* drops_;
       ::greptime::v1::region::AlterRequests* alters_;
+      ::greptime::v1::region::BulkInsertRequests* bulk_inserts_;
     } body_;
     mutable ::PROTOBUF_NAMESPACE_ID::internal::CachedSize _cached_size_;
     uint32_t _oneof_case_[1];
@@ -5122,6 +5177,338 @@ class RegionColumnDef final :
   union { Impl_ _impl_; };
   friend struct ::TableStruct_greptime_2fv1_2fregion_2fserver_2eproto;
 };
+// -------------------------------------------------------------------
+
+class BulkInsertRequests final :
+    public ::PROTOBUF_NAMESPACE_ID::Message /* @@protoc_insertion_point(class_definition:greptime.v1.region.BulkInsertRequests) */ {
+ public:
+  inline BulkInsertRequests() : BulkInsertRequests(nullptr) {}
+  ~BulkInsertRequests() override;
+  explicit PROTOBUF_CONSTEXPR BulkInsertRequests(::PROTOBUF_NAMESPACE_ID::internal::ConstantInitialized);
+
+  BulkInsertRequests(const BulkInsertRequests& from);
+  BulkInsertRequests(BulkInsertRequests&& from) noexcept
+    : BulkInsertRequests() {
+    *this = ::std::move(from);
+  }
+
+  inline BulkInsertRequests& operator=(const BulkInsertRequests& from) {
+    CopyFrom(from);
+    return *this;
+  }
+  inline BulkInsertRequests& operator=(BulkInsertRequests&& from) noexcept {
+    if (this == &from) return *this;
+    if (GetOwningArena() == from.GetOwningArena()
+  #ifdef PROTOBUF_FORCE_COPY_IN_MOVE
+        && GetOwningArena() != nullptr
+  #endif  // !PROTOBUF_FORCE_COPY_IN_MOVE
+    ) {
+      InternalSwap(&from);
+    } else {
+      CopyFrom(from);
+    }
+    return *this;
+  }
+
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return default_instance().GetMetadata().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return default_instance().GetMetadata().reflection;
+  }
+  static const BulkInsertRequests& default_instance() {
+    return *internal_default_instance();
+  }
+  static inline const BulkInsertRequests* internal_default_instance() {
+    return reinterpret_cast<const BulkInsertRequests*>(
+               &_BulkInsertRequests_default_instance_);
+  }
+  static constexpr int kIndexInFileMessages =
+    30;
+
+  friend void swap(BulkInsertRequests& a, BulkInsertRequests& b) {
+    a.Swap(&b);
+  }
+  inline void Swap(BulkInsertRequests* other) {
+    if (other == this) return;
+  #ifdef PROTOBUF_FORCE_COPY_IN_SWAP
+    if (GetOwningArena() != nullptr &&
+        GetOwningArena() == other->GetOwningArena()) {
+   #else  // PROTOBUF_FORCE_COPY_IN_SWAP
+    if (GetOwningArena() == other->GetOwningArena()) {
+  #endif  // !PROTOBUF_FORCE_COPY_IN_SWAP
+      InternalSwap(other);
+    } else {
+      ::PROTOBUF_NAMESPACE_ID::internal::GenericSwap(this, other);
+    }
+  }
+  void UnsafeArenaSwap(BulkInsertRequests* other) {
+    if (other == this) return;
+    GOOGLE_DCHECK(GetOwningArena() == other->GetOwningArena());
+    InternalSwap(other);
+  }
+
+  // implements Message ----------------------------------------------
+
+  BulkInsertRequests* New(::PROTOBUF_NAMESPACE_ID::Arena* arena = nullptr) const final {
+    return CreateMaybeMessage<BulkInsertRequests>(arena);
+  }
+  using ::PROTOBUF_NAMESPACE_ID::Message::CopyFrom;
+  void CopyFrom(const BulkInsertRequests& from);
+  using ::PROTOBUF_NAMESPACE_ID::Message::MergeFrom;
+  void MergeFrom( const BulkInsertRequests& from) {
+    BulkInsertRequests::MergeImpl(*this, from);
+  }
+  private:
+  static void MergeImpl(::PROTOBUF_NAMESPACE_ID::Message& to_msg, const ::PROTOBUF_NAMESPACE_ID::Message& from_msg);
+  public:
+  PROTOBUF_ATTRIBUTE_REINITIALIZES void Clear() final;
+  bool IsInitialized() const final;
+
+  size_t ByteSizeLong() const final;
+  const char* _InternalParse(const char* ptr, ::PROTOBUF_NAMESPACE_ID::internal::ParseContext* ctx) final;
+  uint8_t* _InternalSerialize(
+      uint8_t* target, ::PROTOBUF_NAMESPACE_ID::io::EpsCopyOutputStream* stream) const final;
+  int GetCachedSize() const final { return _impl_._cached_size_.Get(); }
+
+  private:
+  void SharedCtor(::PROTOBUF_NAMESPACE_ID::Arena* arena, bool is_message_owned);
+  void SharedDtor();
+  void SetCachedSize(int size) const final;
+  void InternalSwap(BulkInsertRequests* other);
+
+  private:
+  friend class ::PROTOBUF_NAMESPACE_ID::internal::AnyMetadata;
+  static ::PROTOBUF_NAMESPACE_ID::StringPiece FullMessageName() {
+    return "greptime.v1.region.BulkInsertRequests";
+  }
+  protected:
+  explicit BulkInsertRequests(::PROTOBUF_NAMESPACE_ID::Arena* arena,
+                       bool is_message_owned = false);
+  public:
+
+  static const ClassData _class_data_;
+  const ::PROTOBUF_NAMESPACE_ID::Message::ClassData*GetClassData() const final;
+
+  ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+
+  // nested types ----------------------------------------------------
+
+  // accessors -------------------------------------------------------
+
+  enum : int {
+    kRequestsFieldNumber = 1,
+  };
+  // repeated .greptime.v1.region.BulkInsertRequest requests = 1;
+  int requests_size() const;
+  private:
+  int _internal_requests_size() const;
+  public:
+  void clear_requests();
+  ::greptime::v1::region::BulkInsertRequest* mutable_requests(int index);
+  ::PROTOBUF_NAMESPACE_ID::RepeatedPtrField< ::greptime::v1::region::BulkInsertRequest >*
+      mutable_requests();
+  private:
+  const ::greptime::v1::region::BulkInsertRequest& _internal_requests(int index) const;
+  ::greptime::v1::region::BulkInsertRequest* _internal_add_requests();
+  public:
+  const ::greptime::v1::region::BulkInsertRequest& requests(int index) const;
+  ::greptime::v1::region::BulkInsertRequest* add_requests();
+  const ::PROTOBUF_NAMESPACE_ID::RepeatedPtrField< ::greptime::v1::region::BulkInsertRequest >&
+      requests() const;
+
+  // @@protoc_insertion_point(class_scope:greptime.v1.region.BulkInsertRequests)
+ private:
+  class _Internal;
+
+  template <typename T> friend class ::PROTOBUF_NAMESPACE_ID::Arena::InternalHelper;
+  typedef void InternalArenaConstructable_;
+  typedef void DestructorSkippable_;
+  struct Impl_ {
+    ::PROTOBUF_NAMESPACE_ID::RepeatedPtrField< ::greptime::v1::region::BulkInsertRequest > requests_;
+    mutable ::PROTOBUF_NAMESPACE_ID::internal::CachedSize _cached_size_;
+  };
+  union { Impl_ _impl_; };
+  friend struct ::TableStruct_greptime_2fv1_2fregion_2fserver_2eproto;
+};
+// -------------------------------------------------------------------
+
+class BulkInsertRequest final :
+    public ::PROTOBUF_NAMESPACE_ID::Message /* @@protoc_insertion_point(class_definition:greptime.v1.region.BulkInsertRequest) */ {
+ public:
+  inline BulkInsertRequest() : BulkInsertRequest(nullptr) {}
+  ~BulkInsertRequest() override;
+  explicit PROTOBUF_CONSTEXPR BulkInsertRequest(::PROTOBUF_NAMESPACE_ID::internal::ConstantInitialized);
+
+  BulkInsertRequest(const BulkInsertRequest& from);
+  BulkInsertRequest(BulkInsertRequest&& from) noexcept
+    : BulkInsertRequest() {
+    *this = ::std::move(from);
+  }
+
+  inline BulkInsertRequest& operator=(const BulkInsertRequest& from) {
+    CopyFrom(from);
+    return *this;
+  }
+  inline BulkInsertRequest& operator=(BulkInsertRequest&& from) noexcept {
+    if (this == &from) return *this;
+    if (GetOwningArena() == from.GetOwningArena()
+  #ifdef PROTOBUF_FORCE_COPY_IN_MOVE
+        && GetOwningArena() != nullptr
+  #endif  // !PROTOBUF_FORCE_COPY_IN_MOVE
+    ) {
+      InternalSwap(&from);
+    } else {
+      CopyFrom(from);
+    }
+    return *this;
+  }
+
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return default_instance().GetMetadata().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return default_instance().GetMetadata().reflection;
+  }
+  static const BulkInsertRequest& default_instance() {
+    return *internal_default_instance();
+  }
+  static inline const BulkInsertRequest* internal_default_instance() {
+    return reinterpret_cast<const BulkInsertRequest*>(
+               &_BulkInsertRequest_default_instance_);
+  }
+  static constexpr int kIndexInFileMessages =
+    31;
+
+  friend void swap(BulkInsertRequest& a, BulkInsertRequest& b) {
+    a.Swap(&b);
+  }
+  inline void Swap(BulkInsertRequest* other) {
+    if (other == this) return;
+  #ifdef PROTOBUF_FORCE_COPY_IN_SWAP
+    if (GetOwningArena() != nullptr &&
+        GetOwningArena() == other->GetOwningArena()) {
+   #else  // PROTOBUF_FORCE_COPY_IN_SWAP
+    if (GetOwningArena() == other->GetOwningArena()) {
+  #endif  // !PROTOBUF_FORCE_COPY_IN_SWAP
+      InternalSwap(other);
+    } else {
+      ::PROTOBUF_NAMESPACE_ID::internal::GenericSwap(this, other);
+    }
+  }
+  void UnsafeArenaSwap(BulkInsertRequest* other) {
+    if (other == this) return;
+    GOOGLE_DCHECK(GetOwningArena() == other->GetOwningArena());
+    InternalSwap(other);
+  }
+
+  // implements Message ----------------------------------------------
+
+  BulkInsertRequest* New(::PROTOBUF_NAMESPACE_ID::Arena* arena = nullptr) const final {
+    return CreateMaybeMessage<BulkInsertRequest>(arena);
+  }
+  using ::PROTOBUF_NAMESPACE_ID::Message::CopyFrom;
+  void CopyFrom(const BulkInsertRequest& from);
+  using ::PROTOBUF_NAMESPACE_ID::Message::MergeFrom;
+  void MergeFrom( const BulkInsertRequest& from) {
+    BulkInsertRequest::MergeImpl(*this, from);
+  }
+  private:
+  static void MergeImpl(::PROTOBUF_NAMESPACE_ID::Message& to_msg, const ::PROTOBUF_NAMESPACE_ID::Message& from_msg);
+  public:
+  PROTOBUF_ATTRIBUTE_REINITIALIZES void Clear() final;
+  bool IsInitialized() const final;
+
+  size_t ByteSizeLong() const final;
+  const char* _InternalParse(const char* ptr, ::PROTOBUF_NAMESPACE_ID::internal::ParseContext* ctx) final;
+  uint8_t* _InternalSerialize(
+      uint8_t* target, ::PROTOBUF_NAMESPACE_ID::io::EpsCopyOutputStream* stream) const final;
+  int GetCachedSize() const final { return _impl_._cached_size_.Get(); }
+
+  private:
+  void SharedCtor(::PROTOBUF_NAMESPACE_ID::Arena* arena, bool is_message_owned);
+  void SharedDtor();
+  void SetCachedSize(int size) const final;
+  void InternalSwap(BulkInsertRequest* other);
+
+  private:
+  friend class ::PROTOBUF_NAMESPACE_ID::internal::AnyMetadata;
+  static ::PROTOBUF_NAMESPACE_ID::StringPiece FullMessageName() {
+    return "greptime.v1.region.BulkInsertRequest";
+  }
+  protected:
+  explicit BulkInsertRequest(::PROTOBUF_NAMESPACE_ID::Arena* arena,
+                       bool is_message_owned = false);
+  public:
+
+  static const ClassData _class_data_;
+  const ::PROTOBUF_NAMESPACE_ID::Message::ClassData*GetClassData() const final;
+
+  ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+
+  // nested types ----------------------------------------------------
+
+  // accessors -------------------------------------------------------
+
+  enum : int {
+    kPayloadFieldNumber = 3,
+    kRegionIdFieldNumber = 1,
+    kPayloadTypeFieldNumber = 2,
+  };
+  // bytes payload = 3;
+  void clear_payload();
+  const std::string& payload() const;
+  template <typename ArgT0 = const std::string&, typename... ArgT>
+  void set_payload(ArgT0&& arg0, ArgT... args);
+  std::string* mutable_payload();
+  PROTOBUF_NODISCARD std::string* release_payload();
+  void set_allocated_payload(std::string* payload);
+  private:
+  const std::string& _internal_payload() const;
+  inline PROTOBUF_ALWAYS_INLINE void _internal_set_payload(const std::string& value);
+  std::string* _internal_mutable_payload();
+  public:
+
+  // uint64 region_id = 1;
+  void clear_region_id();
+  uint64_t region_id() const;
+  void set_region_id(uint64_t value);
+  private:
+  uint64_t _internal_region_id() const;
+  void _internal_set_region_id(uint64_t value);
+  public:
+
+  // .greptime.v1.region.BulkInsertType payload_type = 2;
+  void clear_payload_type();
+  ::greptime::v1::region::BulkInsertType payload_type() const;
+  void set_payload_type(::greptime::v1::region::BulkInsertType value);
+  private:
+  ::greptime::v1::region::BulkInsertType _internal_payload_type() const;
+  void _internal_set_payload_type(::greptime::v1::region::BulkInsertType value);
+  public:
+
+  // @@protoc_insertion_point(class_scope:greptime.v1.region.BulkInsertRequest)
+ private:
+  class _Internal;
+
+  template <typename T> friend class ::PROTOBUF_NAMESPACE_ID::Arena::InternalHelper;
+  typedef void InternalArenaConstructable_;
+  typedef void DestructorSkippable_;
+  struct Impl_ {
+    ::PROTOBUF_NAMESPACE_ID::internal::ArenaStringPtr payload_;
+    uint64_t region_id_;
+    int payload_type_;
+    mutable ::PROTOBUF_NAMESPACE_ID::internal::CachedSize _cached_size_;
+  };
+  union { Impl_ _impl_; };
+  friend struct ::TableStruct_greptime_2fv1_2fregion_2fserver_2eproto;
+};
 // ===================================================================
 
 
@@ -6355,6 +6742,80 @@ inline ::greptime::v1::region::AlterRequests* RegionRequest::mutable_alters() {
   return _msg;
 }
 
+// .greptime.v1.region.BulkInsertRequests bulk_inserts = 16;
+inline bool RegionRequest::_internal_has_bulk_inserts() const {
+  return body_case() == kBulkInserts;
+}
+inline bool RegionRequest::has_bulk_inserts() const {
+  return _internal_has_bulk_inserts();
+}
+inline void RegionRequest::set_has_bulk_inserts() {
+  _impl_._oneof_case_[0] = kBulkInserts;
+}
+inline void RegionRequest::clear_bulk_inserts() {
+  if (_internal_has_bulk_inserts()) {
+    if (GetArenaForAllocation() == nullptr) {
+      delete _impl_.body_.bulk_inserts_;
+    }
+    clear_has_body();
+  }
+}
+inline ::greptime::v1::region::BulkInsertRequests* RegionRequest::release_bulk_inserts() {
+  // @@protoc_insertion_point(field_release:greptime.v1.region.RegionRequest.bulk_inserts)
+  if (_internal_has_bulk_inserts()) {
+    clear_has_body();
+    ::greptime::v1::region::BulkInsertRequests* temp = _impl_.body_.bulk_inserts_;
+    if (GetArenaForAllocation() != nullptr) {
+      temp = ::PROTOBUF_NAMESPACE_ID::internal::DuplicateIfNonNull(temp);
+    }
+    _impl_.body_.bulk_inserts_ = nullptr;
+    return temp;
+  } else {
+    return nullptr;
+  }
+}
+inline const ::greptime::v1::region::BulkInsertRequests& RegionRequest::_internal_bulk_inserts() const {
+  return _internal_has_bulk_inserts()
+      ? *_impl_.body_.bulk_inserts_
+      : reinterpret_cast< ::greptime::v1::region::BulkInsertRequests&>(::greptime::v1::region::_BulkInsertRequests_default_instance_);
+}
+inline const ::greptime::v1::region::BulkInsertRequests& RegionRequest::bulk_inserts() const {
+  // @@protoc_insertion_point(field_get:greptime.v1.region.RegionRequest.bulk_inserts)
+  return _internal_bulk_inserts();
+}
+inline ::greptime::v1::region::BulkInsertRequests* RegionRequest::unsafe_arena_release_bulk_inserts() {
+  // @@protoc_insertion_point(field_unsafe_arena_release:greptime.v1.region.RegionRequest.bulk_inserts)
+  if (_internal_has_bulk_inserts()) {
+    clear_has_body();
+    ::greptime::v1::region::BulkInsertRequests* temp = _impl_.body_.bulk_inserts_;
+    _impl_.body_.bulk_inserts_ = nullptr;
+    return temp;
+  } else {
+    return nullptr;
+  }
+}
+inline void RegionRequest::unsafe_arena_set_allocated_bulk_inserts(::greptime::v1::region::BulkInsertRequests* bulk_inserts) {
+  clear_body();
+  if (bulk_inserts) {
+    set_has_bulk_inserts();
+    _impl_.body_.bulk_inserts_ = bulk_inserts;
+  }
+  // @@protoc_insertion_point(field_unsafe_arena_set_allocated:greptime.v1.region.RegionRequest.bulk_inserts)
+}
+inline ::greptime::v1::region::BulkInsertRequests* RegionRequest::_internal_mutable_bulk_inserts() {
+  if (!_internal_has_bulk_inserts()) {
+    clear_body();
+    set_has_bulk_inserts();
+    _impl_.body_.bulk_inserts_ = CreateMaybeMessage< ::greptime::v1::region::BulkInsertRequests >(GetArenaForAllocation());
+  }
+  return _impl_.body_.bulk_inserts_;
+}
+inline ::greptime::v1::region::BulkInsertRequests* RegionRequest::mutable_bulk_inserts() {
+  ::greptime::v1::region::BulkInsertRequests* _msg = _internal_mutable_bulk_inserts();
+  // @@protoc_insertion_point(field_mutable:greptime.v1.region.RegionRequest.bulk_inserts)
+  return _msg;
+}
+
 inline bool RegionRequest::has_body() const {
   return body_case() != BODY_NOT_SET;
 }
@@ -8789,6 +9250,144 @@ inline void RegionColumnDef::set_column_id(uint32_t value) {
   // @@protoc_insertion_point(field_set:greptime.v1.region.RegionColumnDef.column_id)
 }
 
+// -------------------------------------------------------------------
+
+// BulkInsertRequests
+
+// repeated .greptime.v1.region.BulkInsertRequest requests = 1;
+inline int BulkInsertRequests::_internal_requests_size() const {
+  return _impl_.requests_.size();
+}
+inline int BulkInsertRequests::requests_size() const {
+  return _internal_requests_size();
+}
+inline void BulkInsertRequests::clear_requests() {
+  _impl_.requests_.Clear();
+}
+inline ::greptime::v1::region::BulkInsertRequest* BulkInsertRequests::mutable_requests(int index) {
+  // @@protoc_insertion_point(field_mutable:greptime.v1.region.BulkInsertRequests.requests)
+  return _impl_.requests_.Mutable(index);
+}
+inline ::PROTOBUF_NAMESPACE_ID::RepeatedPtrField< ::greptime::v1::region::BulkInsertRequest >*
+BulkInsertRequests::mutable_requests() {
+  // @@protoc_insertion_point(field_mutable_list:greptime.v1.region.BulkInsertRequests.requests)
+  return &_impl_.requests_;
+}
+inline const ::greptime::v1::region::BulkInsertRequest& BulkInsertRequests::_internal_requests(int index) const {
+  return _impl_.requests_.Get(index);
+}
+inline const ::greptime::v1::region::BulkInsertRequest& BulkInsertRequests::requests(int index) const {
+  // @@protoc_insertion_point(field_get:greptime.v1.region.BulkInsertRequests.requests)
+  return _internal_requests(index);
+}
+inline ::greptime::v1::region::BulkInsertRequest* BulkInsertRequests::_internal_add_requests() {
+  return _impl_.requests_.Add();
+}
+inline ::greptime::v1::region::BulkInsertRequest* BulkInsertRequests::add_requests() {
+  ::greptime::v1::region::BulkInsertRequest* _add = _internal_add_requests();
+  // @@protoc_insertion_point(field_add:greptime.v1.region.BulkInsertRequests.requests)
+  return _add;
+}
+inline const ::PROTOBUF_NAMESPACE_ID::RepeatedPtrField< ::greptime::v1::region::BulkInsertRequest >&
+BulkInsertRequests::requests() const {
+  // @@protoc_insertion_point(field_list:greptime.v1.region.BulkInsertRequests.requests)
+  return _impl_.requests_;
+}
+
+// -------------------------------------------------------------------
+
+// BulkInsertRequest
+
+// uint64 region_id = 1;
+inline void BulkInsertRequest::clear_region_id() {
+  _impl_.region_id_ = uint64_t{0u};
+}
+inline uint64_t BulkInsertRequest::_internal_region_id() const {
+  return _impl_.region_id_;
+}
+inline uint64_t BulkInsertRequest::region_id() const {
+  // @@protoc_insertion_point(field_get:greptime.v1.region.BulkInsertRequest.region_id)
+  return _internal_region_id();
+}
+inline void BulkInsertRequest::_internal_set_region_id(uint64_t value) {
+  
+  _impl_.region_id_ = value;
+}
+inline void BulkInsertRequest::set_region_id(uint64_t value) {
+  _internal_set_region_id(value);
+  // @@protoc_insertion_point(field_set:greptime.v1.region.BulkInsertRequest.region_id)
+}
+
+// .greptime.v1.region.BulkInsertType payload_type = 2;
+inline void BulkInsertRequest::clear_payload_type() {
+  _impl_.payload_type_ = 0;
+}
+inline ::greptime::v1::region::BulkInsertType BulkInsertRequest::_internal_payload_type() const {
+  return static_cast< ::greptime::v1::region::BulkInsertType >(_impl_.payload_type_);
+}
+inline ::greptime::v1::region::BulkInsertType BulkInsertRequest::payload_type() const {
+  // @@protoc_insertion_point(field_get:greptime.v1.region.BulkInsertRequest.payload_type)
+  return _internal_payload_type();
+}
+inline void BulkInsertRequest::_internal_set_payload_type(::greptime::v1::region::BulkInsertType value) {
+  
+  _impl_.payload_type_ = value;
+}
+inline void BulkInsertRequest::set_payload_type(::greptime::v1::region::BulkInsertType value) {
+  _internal_set_payload_type(value);
+  // @@protoc_insertion_point(field_set:greptime.v1.region.BulkInsertRequest.payload_type)
+}
+
+// bytes payload = 3;
+inline void BulkInsertRequest::clear_payload() {
+  _impl_.payload_.ClearToEmpty();
+}
+inline const std::string& BulkInsertRequest::payload() const {
+  // @@protoc_insertion_point(field_get:greptime.v1.region.BulkInsertRequest.payload)
+  return _internal_payload();
+}
+template <typename ArgT0, typename... ArgT>
+inline PROTOBUF_ALWAYS_INLINE
+void BulkInsertRequest::set_payload(ArgT0&& arg0, ArgT... args) {
+ 
+ _impl_.payload_.SetBytes(static_cast<ArgT0 &&>(arg0), args..., GetArenaForAllocation());
+  // @@protoc_insertion_point(field_set:greptime.v1.region.BulkInsertRequest.payload)
+}
+inline std::string* BulkInsertRequest::mutable_payload() {
+  std::string* _s = _internal_mutable_payload();
+  // @@protoc_insertion_point(field_mutable:greptime.v1.region.BulkInsertRequest.payload)
+  return _s;
+}
+inline const std::string& BulkInsertRequest::_internal_payload() const {
+  return _impl_.payload_.Get();
+}
+inline void BulkInsertRequest::_internal_set_payload(const std::string& value) {
+  
+  _impl_.payload_.Set(value, GetArenaForAllocation());
+}
+inline std::string* BulkInsertRequest::_internal_mutable_payload() {
+  
+  return _impl_.payload_.Mutable(GetArenaForAllocation());
+}
+inline std::string* BulkInsertRequest::release_payload() {
+  // @@protoc_insertion_point(field_release:greptime.v1.region.BulkInsertRequest.payload)
+  return _impl_.payload_.Release();
+}
+inline void BulkInsertRequest::set_allocated_payload(std::string* payload) {
+  if (payload != nullptr) {
+    
+  } else {
+    
+  }
+  _impl_.payload_.SetAllocated(payload, GetArenaForAllocation());
+#ifdef PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  if (_impl_.payload_.IsDefault()) {
+    _impl_.payload_.Set("", GetArenaForAllocation());
+  }
+#endif // PROTOBUF_FORCE_COPY_DEFAULT_STRING
+  // @@protoc_insertion_point(field_set_allocated:greptime.v1.region.BulkInsertRequest.payload)
+}
+
 #ifdef __GNUC__
   #pragma GCC diagnostic pop
 #endif  // __GNUC__
@@ -8850,6 +9449,10 @@ inline void RegionColumnDef::set_column_id(uint32_t value) {
 
 // -------------------------------------------------------------------
 
+// -------------------------------------------------------------------
+
+// -------------------------------------------------------------------
+
 
 // @@protoc_insertion_point(namespace_scope)
 
@@ -8857,6 +9460,16 @@ inline void RegionColumnDef::set_column_id(uint32_t value) {
 }  // namespace v1
 }  // namespace greptime
 
+PROTOBUF_NAMESPACE_OPEN
+
+template <> struct is_proto_enum< ::greptime::v1::region::BulkInsertType> : ::std::true_type {};
+template <>
+inline const EnumDescriptor* GetEnumDescriptor< ::greptime::v1::region::BulkInsertType>() {
+  return ::greptime::v1::region::BulkInsertType_descriptor();
+}
+
+PROTOBUF_NAMESPACE_CLOSE
+
 // @@protoc_insertion_point(global_scope)
 
 #include <google/protobuf/port_undef.inc>
diff --git a/java/src/main/java/io/greptime/v1/region/Server.java b/java/src/main/java/io/greptime/v1/region/Server.java
index c01545d5..1faa774c 100644
--- a/java/src/main/java/io/greptime/v1/region/Server.java
+++ b/java/src/main/java/io/greptime/v1/region/Server.java
@@ -14,6 +14,105 @@ public static void registerAllExtensions(
     registerAllExtensions(
         (com.google.protobuf.ExtensionRegistryLite) registry);
   }
+  /**
+   * Protobuf enum {@code greptime.v1.region.BulkInsertType}
+   */
+  public enum BulkInsertType
+      implements com.google.protobuf.ProtocolMessageEnum {
+    /**
+     * <code>ARROW_IPC = 0;</code>
+     */
+    ARROW_IPC(0),
+    UNRECOGNIZED(-1),
+    ;
+
+    /**
+     * <code>ARROW_IPC = 0;</code>
+     */
+    public static final int ARROW_IPC_VALUE = 0;
+
+
+    public final int getNumber() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalArgumentException(
+            "Can't get the number of an unknown enum value.");
+      }
+      return value;
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static BulkInsertType valueOf(int value) {
+      return forNumber(value);
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     */
+    public static BulkInsertType forNumber(int value) {
+      switch (value) {
+        case 0: return ARROW_IPC;
+        default: return null;
+      }
+    }
+
+    public static com.google.protobuf.Internal.EnumLiteMap<BulkInsertType>
+        internalGetValueMap() {
+      return internalValueMap;
+    }
+    private static final com.google.protobuf.Internal.EnumLiteMap<
+        BulkInsertType> internalValueMap =
+          new com.google.protobuf.Internal.EnumLiteMap<BulkInsertType>() {
+            public BulkInsertType findValueByNumber(int number) {
+              return BulkInsertType.forNumber(number);
+            }
+          };
+
+    public final com.google.protobuf.Descriptors.EnumValueDescriptor
+        getValueDescriptor() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalStateException(
+            "Can't get the descriptor of an unrecognized enum value.");
+      }
+      return getDescriptor().getValues().get(ordinal());
+    }
+    public final com.google.protobuf.Descriptors.EnumDescriptor
+        getDescriptorForType() {
+      return getDescriptor();
+    }
+    public static final com.google.protobuf.Descriptors.EnumDescriptor
+        getDescriptor() {
+      return io.greptime.v1.region.Server.getDescriptor().getEnumTypes().get(0);
+    }
+
+    private static final BulkInsertType[] VALUES = values();
+
+    public static BulkInsertType valueOf(
+        com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+      if (desc.getType() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException(
+          "EnumValueDescriptor is not for this type.");
+      }
+      if (desc.getIndex() == -1) {
+        return UNRECOGNIZED;
+      }
+      return VALUES[desc.getIndex()];
+    }
+
+    private final int value;
+
+    private BulkInsertType(int value) {
+      this.value = value;
+    }
+
+    // @@protoc_insertion_point(enum_scope:greptime.v1.region.BulkInsertType)
+  }
+
   public interface RegionRequestHeaderOrBuilder extends
       // @@protoc_insertion_point(interface_extends:greptime.v1.region.RegionRequestHeader)
       com.google.protobuf.MessageOrBuilder {
@@ -1502,6 +1601,21 @@ public interface RegionRequestOrBuilder extends
      */
     io.greptime.v1.region.Server.AlterRequestsOrBuilder getAltersOrBuilder();
 
+    /**
+     * <code>.greptime.v1.region.BulkInsertRequests bulk_inserts = 16;</code>
+     * @return Whether the bulkInserts field is set.
+     */
+    boolean hasBulkInserts();
+    /**
+     * <code>.greptime.v1.region.BulkInsertRequests bulk_inserts = 16;</code>
+     * @return The bulkInserts.
+     */
+    io.greptime.v1.region.Server.BulkInsertRequests getBulkInserts();
+    /**
+     * <code>.greptime.v1.region.BulkInsertRequests bulk_inserts = 16;</code>
+     */
+    io.greptime.v1.region.Server.BulkInsertRequestsOrBuilder getBulkInsertsOrBuilder();
+
     public io.greptime.v1.region.Server.RegionRequest.BodyCase getBodyCase();
   }
   /**
@@ -1744,6 +1858,20 @@ private RegionRequest(
               bodyCase_ = 15;
               break;
             }
+            case 130: {
+              io.greptime.v1.region.Server.BulkInsertRequests.Builder subBuilder = null;
+              if (bodyCase_ == 16) {
+                subBuilder = ((io.greptime.v1.region.Server.BulkInsertRequests) body_).toBuilder();
+              }
+              body_ =
+                  input.readMessage(io.greptime.v1.region.Server.BulkInsertRequests.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom((io.greptime.v1.region.Server.BulkInsertRequests) body_);
+                body_ = subBuilder.buildPartial();
+              }
+              bodyCase_ = 16;
+              break;
+            }
             default: {
               if (!parseUnknownField(
                   input, unknownFields, extensionRegistry, tag)) {
@@ -1796,6 +1924,7 @@ public enum BodyCase
       CREATES(13),
       DROPS(14),
       ALTERS(15),
+      BULK_INSERTS(16),
       BODY_NOT_SET(0);
       private final int value;
       private BodyCase(int value) {
@@ -1826,6 +1955,7 @@ public static BodyCase forNumber(int value) {
           case 13: return CREATES;
           case 14: return DROPS;
           case 15: return ALTERS;
+          case 16: return BULK_INSERTS;
           case 0: return BODY_NOT_SET;
           default: return null;
         }
@@ -2270,6 +2400,37 @@ public io.greptime.v1.region.Server.AlterRequestsOrBuilder getAltersOrBuilder()
       return io.greptime.v1.region.Server.AlterRequests.getDefaultInstance();
     }
 
+    public static final int BULK_INSERTS_FIELD_NUMBER = 16;
+    /**
+     * <code>.greptime.v1.region.BulkInsertRequests bulk_inserts = 16;</code>
+     * @return Whether the bulkInserts field is set.
+     */
+    @java.lang.Override
+    public boolean hasBulkInserts() {
+      return bodyCase_ == 16;
+    }
+    /**
+     * <code>.greptime.v1.region.BulkInsertRequests bulk_inserts = 16;</code>
+     * @return The bulkInserts.
+     */
+    @java.lang.Override
+    public io.greptime.v1.region.Server.BulkInsertRequests getBulkInserts() {
+      if (bodyCase_ == 16) {
+         return (io.greptime.v1.region.Server.BulkInsertRequests) body_;
+      }
+      return io.greptime.v1.region.Server.BulkInsertRequests.getDefaultInstance();
+    }
+    /**
+     * <code>.greptime.v1.region.BulkInsertRequests bulk_inserts = 16;</code>
+     */
+    @java.lang.Override
+    public io.greptime.v1.region.Server.BulkInsertRequestsOrBuilder getBulkInsertsOrBuilder() {
+      if (bodyCase_ == 16) {
+         return (io.greptime.v1.region.Server.BulkInsertRequests) body_;
+      }
+      return io.greptime.v1.region.Server.BulkInsertRequests.getDefaultInstance();
+    }
+
     private byte memoizedIsInitialized = -1;
     @java.lang.Override
     public final boolean isInitialized() {
@@ -2326,6 +2487,9 @@ public void writeTo(com.google.protobuf.CodedOutputStream output)
       if (bodyCase_ == 15) {
         output.writeMessage(15, (io.greptime.v1.region.Server.AlterRequests) body_);
       }
+      if (bodyCase_ == 16) {
+        output.writeMessage(16, (io.greptime.v1.region.Server.BulkInsertRequests) body_);
+      }
       unknownFields.writeTo(output);
     }
 
@@ -2391,6 +2555,10 @@ public int getSerializedSize() {
         size += com.google.protobuf.CodedOutputStream
           .computeMessageSize(15, (io.greptime.v1.region.Server.AlterRequests) body_);
       }
+      if (bodyCase_ == 16) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeMessageSize(16, (io.greptime.v1.region.Server.BulkInsertRequests) body_);
+      }
       size += unknownFields.getSerializedSize();
       memoizedSize = size;
       return size;
@@ -2465,6 +2633,10 @@ public boolean equals(final java.lang.Object obj) {
           if (!getAlters()
               .equals(other.getAlters())) return false;
           break;
+        case 16:
+          if (!getBulkInserts()
+              .equals(other.getBulkInserts())) return false;
+          break;
         case 0:
         default:
       }
@@ -2536,6 +2708,10 @@ public int hashCode() {
           hash = (37 * hash) + ALTERS_FIELD_NUMBER;
           hash = (53 * hash) + getAlters().hashCode();
           break;
+        case 16:
+          hash = (37 * hash) + BULK_INSERTS_FIELD_NUMBER;
+          hash = (53 * hash) + getBulkInserts().hashCode();
+          break;
         case 0:
         default:
       }
@@ -2802,6 +2978,13 @@ public io.greptime.v1.region.Server.RegionRequest buildPartial() {
             result.body_ = altersBuilder_.build();
           }
         }
+        if (bodyCase_ == 16) {
+          if (bulkInsertsBuilder_ == null) {
+            result.body_ = body_;
+          } else {
+            result.body_ = bulkInsertsBuilder_.build();
+          }
+        }
         result.bodyCase_ = bodyCase_;
         onBuilt();
         return result;
@@ -2907,6 +3090,10 @@ public Builder mergeFrom(io.greptime.v1.region.Server.RegionRequest other) {
             mergeAlters(other.getAlters());
             break;
           }
+          case BULK_INSERTS: {
+            mergeBulkInserts(other.getBulkInserts());
+            break;
+          }
           case BODY_NOT_SET: {
             break;
           }
@@ -4919,6 +5106,148 @@ public io.greptime.v1.region.Server.AlterRequestsOrBuilder getAltersOrBuilder()
         onChanged();;
         return altersBuilder_;
       }
+
+      private com.google.protobuf.SingleFieldBuilderV3<
+          io.greptime.v1.region.Server.BulkInsertRequests, io.greptime.v1.region.Server.BulkInsertRequests.Builder, io.greptime.v1.region.Server.BulkInsertRequestsOrBuilder> bulkInsertsBuilder_;
+      /**
+       * <code>.greptime.v1.region.BulkInsertRequests bulk_inserts = 16;</code>
+       * @return Whether the bulkInserts field is set.
+       */
+      @java.lang.Override
+      public boolean hasBulkInserts() {
+        return bodyCase_ == 16;
+      }
+      /**
+       * <code>.greptime.v1.region.BulkInsertRequests bulk_inserts = 16;</code>
+       * @return The bulkInserts.
+       */
+      @java.lang.Override
+      public io.greptime.v1.region.Server.BulkInsertRequests getBulkInserts() {
+        if (bulkInsertsBuilder_ == null) {
+          if (bodyCase_ == 16) {
+            return (io.greptime.v1.region.Server.BulkInsertRequests) body_;
+          }
+          return io.greptime.v1.region.Server.BulkInsertRequests.getDefaultInstance();
+        } else {
+          if (bodyCase_ == 16) {
+            return bulkInsertsBuilder_.getMessage();
+          }
+          return io.greptime.v1.region.Server.BulkInsertRequests.getDefaultInstance();
+        }
+      }
+      /**
+       * <code>.greptime.v1.region.BulkInsertRequests bulk_inserts = 16;</code>
+       */
+      public Builder setBulkInserts(io.greptime.v1.region.Server.BulkInsertRequests value) {
+        if (bulkInsertsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          body_ = value;
+          onChanged();
+        } else {
+          bulkInsertsBuilder_.setMessage(value);
+        }
+        bodyCase_ = 16;
+        return this;
+      }
+      /**
+       * <code>.greptime.v1.region.BulkInsertRequests bulk_inserts = 16;</code>
+       */
+      public Builder setBulkInserts(
+          io.greptime.v1.region.Server.BulkInsertRequests.Builder builderForValue) {
+        if (bulkInsertsBuilder_ == null) {
+          body_ = builderForValue.build();
+          onChanged();
+        } else {
+          bulkInsertsBuilder_.setMessage(builderForValue.build());
+        }
+        bodyCase_ = 16;
+        return this;
+      }
+      /**
+       * <code>.greptime.v1.region.BulkInsertRequests bulk_inserts = 16;</code>
+       */
+      public Builder mergeBulkInserts(io.greptime.v1.region.Server.BulkInsertRequests value) {
+        if (bulkInsertsBuilder_ == null) {
+          if (bodyCase_ == 16 &&
+              body_ != io.greptime.v1.region.Server.BulkInsertRequests.getDefaultInstance()) {
+            body_ = io.greptime.v1.region.Server.BulkInsertRequests.newBuilder((io.greptime.v1.region.Server.BulkInsertRequests) body_)
+                .mergeFrom(value).buildPartial();
+          } else {
+            body_ = value;
+          }
+          onChanged();
+        } else {
+          if (bodyCase_ == 16) {
+            bulkInsertsBuilder_.mergeFrom(value);
+          } else {
+            bulkInsertsBuilder_.setMessage(value);
+          }
+        }
+        bodyCase_ = 16;
+        return this;
+      }
+      /**
+       * <code>.greptime.v1.region.BulkInsertRequests bulk_inserts = 16;</code>
+       */
+      public Builder clearBulkInserts() {
+        if (bulkInsertsBuilder_ == null) {
+          if (bodyCase_ == 16) {
+            bodyCase_ = 0;
+            body_ = null;
+            onChanged();
+          }
+        } else {
+          if (bodyCase_ == 16) {
+            bodyCase_ = 0;
+            body_ = null;
+          }
+          bulkInsertsBuilder_.clear();
+        }
+        return this;
+      }
+      /**
+       * <code>.greptime.v1.region.BulkInsertRequests bulk_inserts = 16;</code>
+       */
+      public io.greptime.v1.region.Server.BulkInsertRequests.Builder getBulkInsertsBuilder() {
+        return getBulkInsertsFieldBuilder().getBuilder();
+      }
+      /**
+       * <code>.greptime.v1.region.BulkInsertRequests bulk_inserts = 16;</code>
+       */
+      @java.lang.Override
+      public io.greptime.v1.region.Server.BulkInsertRequestsOrBuilder getBulkInsertsOrBuilder() {
+        if ((bodyCase_ == 16) && (bulkInsertsBuilder_ != null)) {
+          return bulkInsertsBuilder_.getMessageOrBuilder();
+        } else {
+          if (bodyCase_ == 16) {
+            return (io.greptime.v1.region.Server.BulkInsertRequests) body_;
+          }
+          return io.greptime.v1.region.Server.BulkInsertRequests.getDefaultInstance();
+        }
+      }
+      /**
+       * <code>.greptime.v1.region.BulkInsertRequests bulk_inserts = 16;</code>
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+          io.greptime.v1.region.Server.BulkInsertRequests, io.greptime.v1.region.Server.BulkInsertRequests.Builder, io.greptime.v1.region.Server.BulkInsertRequestsOrBuilder> 
+          getBulkInsertsFieldBuilder() {
+        if (bulkInsertsBuilder_ == null) {
+          if (!(bodyCase_ == 16)) {
+            body_ = io.greptime.v1.region.Server.BulkInsertRequests.getDefaultInstance();
+          }
+          bulkInsertsBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+              io.greptime.v1.region.Server.BulkInsertRequests, io.greptime.v1.region.Server.BulkInsertRequests.Builder, io.greptime.v1.region.Server.BulkInsertRequestsOrBuilder>(
+                  (io.greptime.v1.region.Server.BulkInsertRequests) body_,
+                  getParentForChildren(),
+                  isClean());
+          body_ = null;
+        }
+        bodyCase_ = 16;
+        onChanged();;
+        return bulkInsertsBuilder_;
+      }
       @java.lang.Override
       public final Builder setUnknownFields(
           final com.google.protobuf.UnknownFieldSet unknownFields) {
@@ -25366,103 +25695,1578 @@ public io.greptime.v1.region.Server.RegionColumnDef getDefaultInstanceForType()
 
   }
 
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-    internal_static_greptime_v1_region_RegionRequestHeader_descriptor;
-  private static final 
-    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-      internal_static_greptime_v1_region_RegionRequestHeader_fieldAccessorTable;
-  private static final com.google.protobuf.Descriptors.Descriptor
-    internal_static_greptime_v1_region_RegionRequestHeader_TracingContextEntry_descriptor;
-  private static final 
-    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-      internal_static_greptime_v1_region_RegionRequestHeader_TracingContextEntry_fieldAccessorTable;
-  private static final com.google.protobuf.Descriptors.Descriptor
-    internal_static_greptime_v1_region_RegionRequest_descriptor;
-  private static final 
-    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-      internal_static_greptime_v1_region_RegionRequest_fieldAccessorTable;
-  private static final com.google.protobuf.Descriptors.Descriptor
-    internal_static_greptime_v1_region_RegionResponse_descriptor;
-  private static final 
-    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-      internal_static_greptime_v1_region_RegionResponse_fieldAccessorTable;
-  private static final com.google.protobuf.Descriptors.Descriptor
-    internal_static_greptime_v1_region_RegionResponse_ExtensionsEntry_descriptor;
-  private static final 
-    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-      internal_static_greptime_v1_region_RegionResponse_ExtensionsEntry_fieldAccessorTable;
-  private static final com.google.protobuf.Descriptors.Descriptor
-    internal_static_greptime_v1_region_InsertRequests_descriptor;
-  private static final 
-    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-      internal_static_greptime_v1_region_InsertRequests_fieldAccessorTable;
-  private static final com.google.protobuf.Descriptors.Descriptor
-    internal_static_greptime_v1_region_DeleteRequests_descriptor;
-  private static final 
-    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-      internal_static_greptime_v1_region_DeleteRequests_fieldAccessorTable;
-  private static final com.google.protobuf.Descriptors.Descriptor
-    internal_static_greptime_v1_region_InsertRequest_descriptor;
-  private static final 
-    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-      internal_static_greptime_v1_region_InsertRequest_fieldAccessorTable;
-  private static final com.google.protobuf.Descriptors.Descriptor
-    internal_static_greptime_v1_region_DeleteRequest_descriptor;
-  private static final 
-    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-      internal_static_greptime_v1_region_DeleteRequest_fieldAccessorTable;
-  private static final com.google.protobuf.Descriptors.Descriptor
-    internal_static_greptime_v1_region_QueryRequest_descriptor;
-  private static final 
-    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-      internal_static_greptime_v1_region_QueryRequest_fieldAccessorTable;
-  private static final com.google.protobuf.Descriptors.Descriptor
-    internal_static_greptime_v1_region_CreateRequests_descriptor;
-  private static final 
-    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-      internal_static_greptime_v1_region_CreateRequests_fieldAccessorTable;
-  private static final com.google.protobuf.Descriptors.Descriptor
-    internal_static_greptime_v1_region_CreateRequest_descriptor;
-  private static final 
-    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-      internal_static_greptime_v1_region_CreateRequest_fieldAccessorTable;
-  private static final com.google.protobuf.Descriptors.Descriptor
-    internal_static_greptime_v1_region_CreateRequest_OptionsEntry_descriptor;
-  private static final 
-    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-      internal_static_greptime_v1_region_CreateRequest_OptionsEntry_fieldAccessorTable;
-  private static final com.google.protobuf.Descriptors.Descriptor
-    internal_static_greptime_v1_region_DropRequests_descriptor;
-  private static final 
-    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-      internal_static_greptime_v1_region_DropRequests_fieldAccessorTable;
-  private static final com.google.protobuf.Descriptors.Descriptor
-    internal_static_greptime_v1_region_DropRequest_descriptor;
-  private static final 
-    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-      internal_static_greptime_v1_region_DropRequest_fieldAccessorTable;
-  private static final com.google.protobuf.Descriptors.Descriptor
-    internal_static_greptime_v1_region_OpenRequest_descriptor;
-  private static final 
-    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-      internal_static_greptime_v1_region_OpenRequest_fieldAccessorTable;
-  private static final com.google.protobuf.Descriptors.Descriptor
-    internal_static_greptime_v1_region_OpenRequest_OptionsEntry_descriptor;
-  private static final 
-    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-      internal_static_greptime_v1_region_OpenRequest_OptionsEntry_fieldAccessorTable;
-  private static final com.google.protobuf.Descriptors.Descriptor
-    internal_static_greptime_v1_region_CloseRequest_descriptor;
-  private static final 
-    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-      internal_static_greptime_v1_region_CloseRequest_fieldAccessorTable;
-  private static final com.google.protobuf.Descriptors.Descriptor
-    internal_static_greptime_v1_region_AlterRequests_descriptor;
-  private static final 
-    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-      internal_static_greptime_v1_region_AlterRequests_fieldAccessorTable;
-  private static final com.google.protobuf.Descriptors.Descriptor
-    internal_static_greptime_v1_region_AlterRequest_descriptor;
+  public interface BulkInsertRequestsOrBuilder extends
+      // @@protoc_insertion_point(interface_extends:greptime.v1.region.BulkInsertRequests)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     * <code>repeated .greptime.v1.region.BulkInsertRequest requests = 1;</code>
+     */
+    java.util.List<io.greptime.v1.region.Server.BulkInsertRequest> 
+        getRequestsList();
+    /**
+     * <code>repeated .greptime.v1.region.BulkInsertRequest requests = 1;</code>
+     */
+    io.greptime.v1.region.Server.BulkInsertRequest getRequests(int index);
+    /**
+     * <code>repeated .greptime.v1.region.BulkInsertRequest requests = 1;</code>
+     */
+    int getRequestsCount();
+    /**
+     * <code>repeated .greptime.v1.region.BulkInsertRequest requests = 1;</code>
+     */
+    java.util.List<? extends io.greptime.v1.region.Server.BulkInsertRequestOrBuilder> 
+        getRequestsOrBuilderList();
+    /**
+     * <code>repeated .greptime.v1.region.BulkInsertRequest requests = 1;</code>
+     */
+    io.greptime.v1.region.Server.BulkInsertRequestOrBuilder getRequestsOrBuilder(
+        int index);
+  }
+  /**
+   * <pre>
+   * Request of bulk ingestion API.
+   * </pre>
+   *
+   * Protobuf type {@code greptime.v1.region.BulkInsertRequests}
+   */
+  public static final class BulkInsertRequests extends
+      com.google.protobuf.GeneratedMessageV3 implements
+      // @@protoc_insertion_point(message_implements:greptime.v1.region.BulkInsertRequests)
+      BulkInsertRequestsOrBuilder {
+  private static final long serialVersionUID = 0L;
+    // Use BulkInsertRequests.newBuilder() to construct.
+    private BulkInsertRequests(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+    private BulkInsertRequests() {
+      requests_ = java.util.Collections.emptyList();
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(
+        UnusedPrivateParameter unused) {
+      return new BulkInsertRequests();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet
+    getUnknownFields() {
+      return this.unknownFields;
+    }
+    private BulkInsertRequests(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      int mutable_bitField0_ = 0;
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10: {
+              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
+                requests_ = new java.util.ArrayList<io.greptime.v1.region.Server.BulkInsertRequest>();
+                mutable_bitField0_ |= 0x00000001;
+              }
+              requests_.add(
+                  input.readMessage(io.greptime.v1.region.Server.BulkInsertRequest.parser(), extensionRegistry));
+              break;
+            }
+            default: {
+              if (!parseUnknownField(
+                  input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (com.google.protobuf.UninitializedMessageException e) {
+        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(
+            e).setUnfinishedMessage(this);
+      } finally {
+        if (((mutable_bitField0_ & 0x00000001) != 0)) {
+          requests_ = java.util.Collections.unmodifiableList(requests_);
+        }
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return io.greptime.v1.region.Server.internal_static_greptime_v1_region_BulkInsertRequests_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return io.greptime.v1.region.Server.internal_static_greptime_v1_region_BulkInsertRequests_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              io.greptime.v1.region.Server.BulkInsertRequests.class, io.greptime.v1.region.Server.BulkInsertRequests.Builder.class);
+    }
+
+    public static final int REQUESTS_FIELD_NUMBER = 1;
+    private java.util.List<io.greptime.v1.region.Server.BulkInsertRequest> requests_;
+    /**
+     * <code>repeated .greptime.v1.region.BulkInsertRequest requests = 1;</code>
+     */
+    @java.lang.Override
+    public java.util.List<io.greptime.v1.region.Server.BulkInsertRequest> getRequestsList() {
+      return requests_;
+    }
+    /**
+     * <code>repeated .greptime.v1.region.BulkInsertRequest requests = 1;</code>
+     */
+    @java.lang.Override
+    public java.util.List<? extends io.greptime.v1.region.Server.BulkInsertRequestOrBuilder> 
+        getRequestsOrBuilderList() {
+      return requests_;
+    }
+    /**
+     * <code>repeated .greptime.v1.region.BulkInsertRequest requests = 1;</code>
+     */
+    @java.lang.Override
+    public int getRequestsCount() {
+      return requests_.size();
+    }
+    /**
+     * <code>repeated .greptime.v1.region.BulkInsertRequest requests = 1;</code>
+     */
+    @java.lang.Override
+    public io.greptime.v1.region.Server.BulkInsertRequest getRequests(int index) {
+      return requests_.get(index);
+    }
+    /**
+     * <code>repeated .greptime.v1.region.BulkInsertRequest requests = 1;</code>
+     */
+    @java.lang.Override
+    public io.greptime.v1.region.Server.BulkInsertRequestOrBuilder getRequestsOrBuilder(
+        int index) {
+      return requests_.get(index);
+    }
+
+    private byte memoizedIsInitialized = -1;
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output)
+                        throws java.io.IOException {
+      for (int i = 0; i < requests_.size(); i++) {
+        output.writeMessage(1, requests_.get(i));
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      for (int i = 0; i < requests_.size(); i++) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeMessageSize(1, requests_.get(i));
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+       return true;
+      }
+      if (!(obj instanceof io.greptime.v1.region.Server.BulkInsertRequests)) {
+        return super.equals(obj);
+      }
+      io.greptime.v1.region.Server.BulkInsertRequests other = (io.greptime.v1.region.Server.BulkInsertRequests) obj;
+
+      if (!getRequestsList()
+          .equals(other.getRequestsList())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      if (getRequestsCount() > 0) {
+        hash = (37 * hash) + REQUESTS_FIELD_NUMBER;
+        hash = (53 * hash) + getRequestsList().hashCode();
+      }
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static io.greptime.v1.region.Server.BulkInsertRequests parseFrom(
+        java.nio.ByteBuffer data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static io.greptime.v1.region.Server.BulkInsertRequests parseFrom(
+        java.nio.ByteBuffer data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static io.greptime.v1.region.Server.BulkInsertRequests parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static io.greptime.v1.region.Server.BulkInsertRequests parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static io.greptime.v1.region.Server.BulkInsertRequests parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static io.greptime.v1.region.Server.BulkInsertRequests parseFrom(
+        byte[] data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static io.greptime.v1.region.Server.BulkInsertRequests parseFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input);
+    }
+    public static io.greptime.v1.region.Server.BulkInsertRequests parseFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input, extensionRegistry);
+    }
+    public static io.greptime.v1.region.Server.BulkInsertRequests parseDelimitedFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseDelimitedWithIOException(PARSER, input);
+    }
+    public static io.greptime.v1.region.Server.BulkInsertRequests parseDelimitedFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+    }
+    public static io.greptime.v1.region.Server.BulkInsertRequests parseFrom(
+        com.google.protobuf.CodedInputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input);
+    }
+    public static io.greptime.v1.region.Server.BulkInsertRequests parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() { return newBuilder(); }
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+    public static Builder newBuilder(io.greptime.v1.region.Server.BulkInsertRequests prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE
+          ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     * <pre>
+     * Request of bulk ingestion API.
+     * </pre>
+     *
+     * Protobuf type {@code greptime.v1.region.BulkInsertRequests}
+     */
+    public static final class Builder extends
+        com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+        // @@protoc_insertion_point(builder_implements:greptime.v1.region.BulkInsertRequests)
+        io.greptime.v1.region.Server.BulkInsertRequestsOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor
+          getDescriptor() {
+        return io.greptime.v1.region.Server.internal_static_greptime_v1_region_BulkInsertRequests_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return io.greptime.v1.region.Server.internal_static_greptime_v1_region_BulkInsertRequests_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                io.greptime.v1.region.Server.BulkInsertRequests.class, io.greptime.v1.region.Server.BulkInsertRequests.Builder.class);
+      }
+
+      // Construct using io.greptime.v1.region.Server.BulkInsertRequests.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(
+          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3
+                .alwaysUseFieldBuilders) {
+          getRequestsFieldBuilder();
+        }
+      }
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        if (requestsBuilder_ == null) {
+          requests_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000001);
+        } else {
+          requestsBuilder_.clear();
+        }
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor
+          getDescriptorForType() {
+        return io.greptime.v1.region.Server.internal_static_greptime_v1_region_BulkInsertRequests_descriptor;
+      }
+
+      @java.lang.Override
+      public io.greptime.v1.region.Server.BulkInsertRequests getDefaultInstanceForType() {
+        return io.greptime.v1.region.Server.BulkInsertRequests.getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public io.greptime.v1.region.Server.BulkInsertRequests build() {
+        io.greptime.v1.region.Server.BulkInsertRequests result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public io.greptime.v1.region.Server.BulkInsertRequests buildPartial() {
+        io.greptime.v1.region.Server.BulkInsertRequests result = new io.greptime.v1.region.Server.BulkInsertRequests(this);
+        int from_bitField0_ = bitField0_;
+        if (requestsBuilder_ == null) {
+          if (((bitField0_ & 0x00000001) != 0)) {
+            requests_ = java.util.Collections.unmodifiableList(requests_);
+            bitField0_ = (bitField0_ & ~0x00000001);
+          }
+          result.requests_ = requests_;
+        } else {
+          result.requests_ = requestsBuilder_.build();
+        }
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          java.lang.Object value) {
+        return super.setField(field, value);
+      }
+      @java.lang.Override
+      public Builder clearField(
+          com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+      @java.lang.Override
+      public Builder clearOneof(
+          com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index, java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof io.greptime.v1.region.Server.BulkInsertRequests) {
+          return mergeFrom((io.greptime.v1.region.Server.BulkInsertRequests)other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(io.greptime.v1.region.Server.BulkInsertRequests other) {
+        if (other == io.greptime.v1.region.Server.BulkInsertRequests.getDefaultInstance()) return this;
+        if (requestsBuilder_ == null) {
+          if (!other.requests_.isEmpty()) {
+            if (requests_.isEmpty()) {
+              requests_ = other.requests_;
+              bitField0_ = (bitField0_ & ~0x00000001);
+            } else {
+              ensureRequestsIsMutable();
+              requests_.addAll(other.requests_);
+            }
+            onChanged();
+          }
+        } else {
+          if (!other.requests_.isEmpty()) {
+            if (requestsBuilder_.isEmpty()) {
+              requestsBuilder_.dispose();
+              requestsBuilder_ = null;
+              requests_ = other.requests_;
+              bitField0_ = (bitField0_ & ~0x00000001);
+              requestsBuilder_ = 
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders ?
+                   getRequestsFieldBuilder() : null;
+            } else {
+              requestsBuilder_.addAllMessages(other.requests_);
+            }
+          }
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        io.greptime.v1.region.Server.BulkInsertRequests parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (io.greptime.v1.region.Server.BulkInsertRequests) e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+      private int bitField0_;
+
+      private java.util.List<io.greptime.v1.region.Server.BulkInsertRequest> requests_ =
+        java.util.Collections.emptyList();
+      private void ensureRequestsIsMutable() {
+        if (!((bitField0_ & 0x00000001) != 0)) {
+          requests_ = new java.util.ArrayList<io.greptime.v1.region.Server.BulkInsertRequest>(requests_);
+          bitField0_ |= 0x00000001;
+         }
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+          io.greptime.v1.region.Server.BulkInsertRequest, io.greptime.v1.region.Server.BulkInsertRequest.Builder, io.greptime.v1.region.Server.BulkInsertRequestOrBuilder> requestsBuilder_;
+
+      /**
+       * <code>repeated .greptime.v1.region.BulkInsertRequest requests = 1;</code>
+       */
+      public java.util.List<io.greptime.v1.region.Server.BulkInsertRequest> getRequestsList() {
+        if (requestsBuilder_ == null) {
+          return java.util.Collections.unmodifiableList(requests_);
+        } else {
+          return requestsBuilder_.getMessageList();
+        }
+      }
+      /**
+       * <code>repeated .greptime.v1.region.BulkInsertRequest requests = 1;</code>
+       */
+      public int getRequestsCount() {
+        if (requestsBuilder_ == null) {
+          return requests_.size();
+        } else {
+          return requestsBuilder_.getCount();
+        }
+      }
+      /**
+       * <code>repeated .greptime.v1.region.BulkInsertRequest requests = 1;</code>
+       */
+      public io.greptime.v1.region.Server.BulkInsertRequest getRequests(int index) {
+        if (requestsBuilder_ == null) {
+          return requests_.get(index);
+        } else {
+          return requestsBuilder_.getMessage(index);
+        }
+      }
+      /**
+       * <code>repeated .greptime.v1.region.BulkInsertRequest requests = 1;</code>
+       */
+      public Builder setRequests(
+          int index, io.greptime.v1.region.Server.BulkInsertRequest value) {
+        if (requestsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureRequestsIsMutable();
+          requests_.set(index, value);
+          onChanged();
+        } else {
+          requestsBuilder_.setMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       * <code>repeated .greptime.v1.region.BulkInsertRequest requests = 1;</code>
+       */
+      public Builder setRequests(
+          int index, io.greptime.v1.region.Server.BulkInsertRequest.Builder builderForValue) {
+        if (requestsBuilder_ == null) {
+          ensureRequestsIsMutable();
+          requests_.set(index, builderForValue.build());
+          onChanged();
+        } else {
+          requestsBuilder_.setMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       * <code>repeated .greptime.v1.region.BulkInsertRequest requests = 1;</code>
+       */
+      public Builder addRequests(io.greptime.v1.region.Server.BulkInsertRequest value) {
+        if (requestsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureRequestsIsMutable();
+          requests_.add(value);
+          onChanged();
+        } else {
+          requestsBuilder_.addMessage(value);
+        }
+        return this;
+      }
+      /**
+       * <code>repeated .greptime.v1.region.BulkInsertRequest requests = 1;</code>
+       */
+      public Builder addRequests(
+          int index, io.greptime.v1.region.Server.BulkInsertRequest value) {
+        if (requestsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureRequestsIsMutable();
+          requests_.add(index, value);
+          onChanged();
+        } else {
+          requestsBuilder_.addMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       * <code>repeated .greptime.v1.region.BulkInsertRequest requests = 1;</code>
+       */
+      public Builder addRequests(
+          io.greptime.v1.region.Server.BulkInsertRequest.Builder builderForValue) {
+        if (requestsBuilder_ == null) {
+          ensureRequestsIsMutable();
+          requests_.add(builderForValue.build());
+          onChanged();
+        } else {
+          requestsBuilder_.addMessage(builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       * <code>repeated .greptime.v1.region.BulkInsertRequest requests = 1;</code>
+       */
+      public Builder addRequests(
+          int index, io.greptime.v1.region.Server.BulkInsertRequest.Builder builderForValue) {
+        if (requestsBuilder_ == null) {
+          ensureRequestsIsMutable();
+          requests_.add(index, builderForValue.build());
+          onChanged();
+        } else {
+          requestsBuilder_.addMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       * <code>repeated .greptime.v1.region.BulkInsertRequest requests = 1;</code>
+       */
+      public Builder addAllRequests(
+          java.lang.Iterable<? extends io.greptime.v1.region.Server.BulkInsertRequest> values) {
+        if (requestsBuilder_ == null) {
+          ensureRequestsIsMutable();
+          com.google.protobuf.AbstractMessageLite.Builder.addAll(
+              values, requests_);
+          onChanged();
+        } else {
+          requestsBuilder_.addAllMessages(values);
+        }
+        return this;
+      }
+      /**
+       * <code>repeated .greptime.v1.region.BulkInsertRequest requests = 1;</code>
+       */
+      public Builder clearRequests() {
+        if (requestsBuilder_ == null) {
+          requests_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000001);
+          onChanged();
+        } else {
+          requestsBuilder_.clear();
+        }
+        return this;
+      }
+      /**
+       * <code>repeated .greptime.v1.region.BulkInsertRequest requests = 1;</code>
+       */
+      public Builder removeRequests(int index) {
+        if (requestsBuilder_ == null) {
+          ensureRequestsIsMutable();
+          requests_.remove(index);
+          onChanged();
+        } else {
+          requestsBuilder_.remove(index);
+        }
+        return this;
+      }
+      /**
+       * <code>repeated .greptime.v1.region.BulkInsertRequest requests = 1;</code>
+       */
+      public io.greptime.v1.region.Server.BulkInsertRequest.Builder getRequestsBuilder(
+          int index) {
+        return getRequestsFieldBuilder().getBuilder(index);
+      }
+      /**
+       * <code>repeated .greptime.v1.region.BulkInsertRequest requests = 1;</code>
+       */
+      public io.greptime.v1.region.Server.BulkInsertRequestOrBuilder getRequestsOrBuilder(
+          int index) {
+        if (requestsBuilder_ == null) {
+          return requests_.get(index);  } else {
+          return requestsBuilder_.getMessageOrBuilder(index);
+        }
+      }
+      /**
+       * <code>repeated .greptime.v1.region.BulkInsertRequest requests = 1;</code>
+       */
+      public java.util.List<? extends io.greptime.v1.region.Server.BulkInsertRequestOrBuilder> 
+           getRequestsOrBuilderList() {
+        if (requestsBuilder_ != null) {
+          return requestsBuilder_.getMessageOrBuilderList();
+        } else {
+          return java.util.Collections.unmodifiableList(requests_);
+        }
+      }
+      /**
+       * <code>repeated .greptime.v1.region.BulkInsertRequest requests = 1;</code>
+       */
+      public io.greptime.v1.region.Server.BulkInsertRequest.Builder addRequestsBuilder() {
+        return getRequestsFieldBuilder().addBuilder(
+            io.greptime.v1.region.Server.BulkInsertRequest.getDefaultInstance());
+      }
+      /**
+       * <code>repeated .greptime.v1.region.BulkInsertRequest requests = 1;</code>
+       */
+      public io.greptime.v1.region.Server.BulkInsertRequest.Builder addRequestsBuilder(
+          int index) {
+        return getRequestsFieldBuilder().addBuilder(
+            index, io.greptime.v1.region.Server.BulkInsertRequest.getDefaultInstance());
+      }
+      /**
+       * <code>repeated .greptime.v1.region.BulkInsertRequest requests = 1;</code>
+       */
+      public java.util.List<io.greptime.v1.region.Server.BulkInsertRequest.Builder> 
+           getRequestsBuilderList() {
+        return getRequestsFieldBuilder().getBuilderList();
+      }
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+          io.greptime.v1.region.Server.BulkInsertRequest, io.greptime.v1.region.Server.BulkInsertRequest.Builder, io.greptime.v1.region.Server.BulkInsertRequestOrBuilder> 
+          getRequestsFieldBuilder() {
+        if (requestsBuilder_ == null) {
+          requestsBuilder_ = new com.google.protobuf.RepeatedFieldBuilderV3<
+              io.greptime.v1.region.Server.BulkInsertRequest, io.greptime.v1.region.Server.BulkInsertRequest.Builder, io.greptime.v1.region.Server.BulkInsertRequestOrBuilder>(
+                  requests_,
+                  ((bitField0_ & 0x00000001) != 0),
+                  getParentForChildren(),
+                  isClean());
+          requests_ = null;
+        }
+        return requestsBuilder_;
+      }
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+
+      // @@protoc_insertion_point(builder_scope:greptime.v1.region.BulkInsertRequests)
+    }
+
+    // @@protoc_insertion_point(class_scope:greptime.v1.region.BulkInsertRequests)
+    private static final io.greptime.v1.region.Server.BulkInsertRequests DEFAULT_INSTANCE;
+    static {
+      DEFAULT_INSTANCE = new io.greptime.v1.region.Server.BulkInsertRequests();
+    }
+
+    public static io.greptime.v1.region.Server.BulkInsertRequests getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<BulkInsertRequests>
+        PARSER = new com.google.protobuf.AbstractParser<BulkInsertRequests>() {
+      @java.lang.Override
+      public BulkInsertRequests parsePartialFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return new BulkInsertRequests(input, extensionRegistry);
+      }
+    };
+
+    public static com.google.protobuf.Parser<BulkInsertRequests> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<BulkInsertRequests> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public io.greptime.v1.region.Server.BulkInsertRequests getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+
+  }
+
+  public interface BulkInsertRequestOrBuilder extends
+      // @@protoc_insertion_point(interface_extends:greptime.v1.region.BulkInsertRequest)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     * <code>uint64 region_id = 1;</code>
+     * @return The regionId.
+     */
+    long getRegionId();
+
+    /**
+     * <code>.greptime.v1.region.BulkInsertType payload_type = 2;</code>
+     * @return The enum numeric value on the wire for payloadType.
+     */
+    int getPayloadTypeValue();
+    /**
+     * <code>.greptime.v1.region.BulkInsertType payload_type = 2;</code>
+     * @return The payloadType.
+     */
+    io.greptime.v1.region.Server.BulkInsertType getPayloadType();
+
+    /**
+     * <code>bytes payload = 3;</code>
+     * @return The payload.
+     */
+    com.google.protobuf.ByteString getPayload();
+  }
+  /**
+   * Protobuf type {@code greptime.v1.region.BulkInsertRequest}
+   */
+  public static final class BulkInsertRequest extends
+      com.google.protobuf.GeneratedMessageV3 implements
+      // @@protoc_insertion_point(message_implements:greptime.v1.region.BulkInsertRequest)
+      BulkInsertRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+    // Use BulkInsertRequest.newBuilder() to construct.
+    private BulkInsertRequest(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+    private BulkInsertRequest() {
+      payloadType_ = 0;
+      payload_ = com.google.protobuf.ByteString.EMPTY;
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(
+        UnusedPrivateParameter unused) {
+      return new BulkInsertRequest();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet
+    getUnknownFields() {
+      return this.unknownFields;
+    }
+    private BulkInsertRequest(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8: {
+
+              regionId_ = input.readUInt64();
+              break;
+            }
+            case 16: {
+              int rawValue = input.readEnum();
+
+              payloadType_ = rawValue;
+              break;
+            }
+            case 26: {
+
+              payload_ = input.readBytes();
+              break;
+            }
+            default: {
+              if (!parseUnknownField(
+                  input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (com.google.protobuf.UninitializedMessageException e) {
+        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(
+            e).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return io.greptime.v1.region.Server.internal_static_greptime_v1_region_BulkInsertRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return io.greptime.v1.region.Server.internal_static_greptime_v1_region_BulkInsertRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              io.greptime.v1.region.Server.BulkInsertRequest.class, io.greptime.v1.region.Server.BulkInsertRequest.Builder.class);
+    }
+
+    public static final int REGION_ID_FIELD_NUMBER = 1;
+    private long regionId_;
+    /**
+     * <code>uint64 region_id = 1;</code>
+     * @return The regionId.
+     */
+    @java.lang.Override
+    public long getRegionId() {
+      return regionId_;
+    }
+
+    public static final int PAYLOAD_TYPE_FIELD_NUMBER = 2;
+    private int payloadType_;
+    /**
+     * <code>.greptime.v1.region.BulkInsertType payload_type = 2;</code>
+     * @return The enum numeric value on the wire for payloadType.
+     */
+    @java.lang.Override public int getPayloadTypeValue() {
+      return payloadType_;
+    }
+    /**
+     * <code>.greptime.v1.region.BulkInsertType payload_type = 2;</code>
+     * @return The payloadType.
+     */
+    @java.lang.Override public io.greptime.v1.region.Server.BulkInsertType getPayloadType() {
+      @SuppressWarnings("deprecation")
+      io.greptime.v1.region.Server.BulkInsertType result = io.greptime.v1.region.Server.BulkInsertType.valueOf(payloadType_);
+      return result == null ? io.greptime.v1.region.Server.BulkInsertType.UNRECOGNIZED : result;
+    }
+
+    public static final int PAYLOAD_FIELD_NUMBER = 3;
+    private com.google.protobuf.ByteString payload_;
+    /**
+     * <code>bytes payload = 3;</code>
+     * @return The payload.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getPayload() {
+      return payload_;
+    }
+
+    private byte memoizedIsInitialized = -1;
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output)
+                        throws java.io.IOException {
+      if (regionId_ != 0L) {
+        output.writeUInt64(1, regionId_);
+      }
+      if (payloadType_ != io.greptime.v1.region.Server.BulkInsertType.ARROW_IPC.getNumber()) {
+        output.writeEnum(2, payloadType_);
+      }
+      if (!payload_.isEmpty()) {
+        output.writeBytes(3, payload_);
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (regionId_ != 0L) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeUInt64Size(1, regionId_);
+      }
+      if (payloadType_ != io.greptime.v1.region.Server.BulkInsertType.ARROW_IPC.getNumber()) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeEnumSize(2, payloadType_);
+      }
+      if (!payload_.isEmpty()) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeBytesSize(3, payload_);
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+       return true;
+      }
+      if (!(obj instanceof io.greptime.v1.region.Server.BulkInsertRequest)) {
+        return super.equals(obj);
+      }
+      io.greptime.v1.region.Server.BulkInsertRequest other = (io.greptime.v1.region.Server.BulkInsertRequest) obj;
+
+      if (getRegionId()
+          != other.getRegionId()) return false;
+      if (payloadType_ != other.payloadType_) return false;
+      if (!getPayload()
+          .equals(other.getPayload())) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      hash = (37 * hash) + REGION_ID_FIELD_NUMBER;
+      hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
+          getRegionId());
+      hash = (37 * hash) + PAYLOAD_TYPE_FIELD_NUMBER;
+      hash = (53 * hash) + payloadType_;
+      hash = (37 * hash) + PAYLOAD_FIELD_NUMBER;
+      hash = (53 * hash) + getPayload().hashCode();
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static io.greptime.v1.region.Server.BulkInsertRequest parseFrom(
+        java.nio.ByteBuffer data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static io.greptime.v1.region.Server.BulkInsertRequest parseFrom(
+        java.nio.ByteBuffer data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static io.greptime.v1.region.Server.BulkInsertRequest parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static io.greptime.v1.region.Server.BulkInsertRequest parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static io.greptime.v1.region.Server.BulkInsertRequest parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static io.greptime.v1.region.Server.BulkInsertRequest parseFrom(
+        byte[] data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static io.greptime.v1.region.Server.BulkInsertRequest parseFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input);
+    }
+    public static io.greptime.v1.region.Server.BulkInsertRequest parseFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input, extensionRegistry);
+    }
+    public static io.greptime.v1.region.Server.BulkInsertRequest parseDelimitedFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseDelimitedWithIOException(PARSER, input);
+    }
+    public static io.greptime.v1.region.Server.BulkInsertRequest parseDelimitedFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+    }
+    public static io.greptime.v1.region.Server.BulkInsertRequest parseFrom(
+        com.google.protobuf.CodedInputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input);
+    }
+    public static io.greptime.v1.region.Server.BulkInsertRequest parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() { return newBuilder(); }
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+    public static Builder newBuilder(io.greptime.v1.region.Server.BulkInsertRequest prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE
+          ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     * Protobuf type {@code greptime.v1.region.BulkInsertRequest}
+     */
+    public static final class Builder extends
+        com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+        // @@protoc_insertion_point(builder_implements:greptime.v1.region.BulkInsertRequest)
+        io.greptime.v1.region.Server.BulkInsertRequestOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor
+          getDescriptor() {
+        return io.greptime.v1.region.Server.internal_static_greptime_v1_region_BulkInsertRequest_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return io.greptime.v1.region.Server.internal_static_greptime_v1_region_BulkInsertRequest_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                io.greptime.v1.region.Server.BulkInsertRequest.class, io.greptime.v1.region.Server.BulkInsertRequest.Builder.class);
+      }
+
+      // Construct using io.greptime.v1.region.Server.BulkInsertRequest.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(
+          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3
+                .alwaysUseFieldBuilders) {
+        }
+      }
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        regionId_ = 0L;
+
+        payloadType_ = 0;
+
+        payload_ = com.google.protobuf.ByteString.EMPTY;
+
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor
+          getDescriptorForType() {
+        return io.greptime.v1.region.Server.internal_static_greptime_v1_region_BulkInsertRequest_descriptor;
+      }
+
+      @java.lang.Override
+      public io.greptime.v1.region.Server.BulkInsertRequest getDefaultInstanceForType() {
+        return io.greptime.v1.region.Server.BulkInsertRequest.getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public io.greptime.v1.region.Server.BulkInsertRequest build() {
+        io.greptime.v1.region.Server.BulkInsertRequest result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public io.greptime.v1.region.Server.BulkInsertRequest buildPartial() {
+        io.greptime.v1.region.Server.BulkInsertRequest result = new io.greptime.v1.region.Server.BulkInsertRequest(this);
+        result.regionId_ = regionId_;
+        result.payloadType_ = payloadType_;
+        result.payload_ = payload_;
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          java.lang.Object value) {
+        return super.setField(field, value);
+      }
+      @java.lang.Override
+      public Builder clearField(
+          com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+      @java.lang.Override
+      public Builder clearOneof(
+          com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index, java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof io.greptime.v1.region.Server.BulkInsertRequest) {
+          return mergeFrom((io.greptime.v1.region.Server.BulkInsertRequest)other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(io.greptime.v1.region.Server.BulkInsertRequest other) {
+        if (other == io.greptime.v1.region.Server.BulkInsertRequest.getDefaultInstance()) return this;
+        if (other.getRegionId() != 0L) {
+          setRegionId(other.getRegionId());
+        }
+        if (other.payloadType_ != 0) {
+          setPayloadTypeValue(other.getPayloadTypeValue());
+        }
+        if (other.getPayload() != com.google.protobuf.ByteString.EMPTY) {
+          setPayload(other.getPayload());
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        io.greptime.v1.region.Server.BulkInsertRequest parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (io.greptime.v1.region.Server.BulkInsertRequest) e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private long regionId_ ;
+      /**
+       * <code>uint64 region_id = 1;</code>
+       * @return The regionId.
+       */
+      @java.lang.Override
+      public long getRegionId() {
+        return regionId_;
+      }
+      /**
+       * <code>uint64 region_id = 1;</code>
+       * @param value The regionId to set.
+       * @return This builder for chaining.
+       */
+      public Builder setRegionId(long value) {
+        
+        regionId_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>uint64 region_id = 1;</code>
+       * @return This builder for chaining.
+       */
+      public Builder clearRegionId() {
+        
+        regionId_ = 0L;
+        onChanged();
+        return this;
+      }
+
+      private int payloadType_ = 0;
+      /**
+       * <code>.greptime.v1.region.BulkInsertType payload_type = 2;</code>
+       * @return The enum numeric value on the wire for payloadType.
+       */
+      @java.lang.Override public int getPayloadTypeValue() {
+        return payloadType_;
+      }
+      /**
+       * <code>.greptime.v1.region.BulkInsertType payload_type = 2;</code>
+       * @param value The enum numeric value on the wire for payloadType to set.
+       * @return This builder for chaining.
+       */
+      public Builder setPayloadTypeValue(int value) {
+        
+        payloadType_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>.greptime.v1.region.BulkInsertType payload_type = 2;</code>
+       * @return The payloadType.
+       */
+      @java.lang.Override
+      public io.greptime.v1.region.Server.BulkInsertType getPayloadType() {
+        @SuppressWarnings("deprecation")
+        io.greptime.v1.region.Server.BulkInsertType result = io.greptime.v1.region.Server.BulkInsertType.valueOf(payloadType_);
+        return result == null ? io.greptime.v1.region.Server.BulkInsertType.UNRECOGNIZED : result;
+      }
+      /**
+       * <code>.greptime.v1.region.BulkInsertType payload_type = 2;</code>
+       * @param value The payloadType to set.
+       * @return This builder for chaining.
+       */
+      public Builder setPayloadType(io.greptime.v1.region.Server.BulkInsertType value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        
+        payloadType_ = value.getNumber();
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>.greptime.v1.region.BulkInsertType payload_type = 2;</code>
+       * @return This builder for chaining.
+       */
+      public Builder clearPayloadType() {
+        
+        payloadType_ = 0;
+        onChanged();
+        return this;
+      }
+
+      private com.google.protobuf.ByteString payload_ = com.google.protobuf.ByteString.EMPTY;
+      /**
+       * <code>bytes payload = 3;</code>
+       * @return The payload.
+       */
+      @java.lang.Override
+      public com.google.protobuf.ByteString getPayload() {
+        return payload_;
+      }
+      /**
+       * <code>bytes payload = 3;</code>
+       * @param value The payload to set.
+       * @return This builder for chaining.
+       */
+      public Builder setPayload(com.google.protobuf.ByteString value) {
+        if (value == null) {
+    throw new NullPointerException();
+  }
+  
+        payload_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>bytes payload = 3;</code>
+       * @return This builder for chaining.
+       */
+      public Builder clearPayload() {
+        
+        payload_ = getDefaultInstance().getPayload();
+        onChanged();
+        return this;
+      }
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+
+      // @@protoc_insertion_point(builder_scope:greptime.v1.region.BulkInsertRequest)
+    }
+
+    // @@protoc_insertion_point(class_scope:greptime.v1.region.BulkInsertRequest)
+    private static final io.greptime.v1.region.Server.BulkInsertRequest DEFAULT_INSTANCE;
+    static {
+      DEFAULT_INSTANCE = new io.greptime.v1.region.Server.BulkInsertRequest();
+    }
+
+    public static io.greptime.v1.region.Server.BulkInsertRequest getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<BulkInsertRequest>
+        PARSER = new com.google.protobuf.AbstractParser<BulkInsertRequest>() {
+      @java.lang.Override
+      public BulkInsertRequest parsePartialFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return new BulkInsertRequest(input, extensionRegistry);
+      }
+    };
+
+    public static com.google.protobuf.Parser<BulkInsertRequest> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<BulkInsertRequest> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public io.greptime.v1.region.Server.BulkInsertRequest getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+
+  }
+
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_greptime_v1_region_RegionRequestHeader_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_greptime_v1_region_RegionRequestHeader_fieldAccessorTable;
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_greptime_v1_region_RegionRequestHeader_TracingContextEntry_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_greptime_v1_region_RegionRequestHeader_TracingContextEntry_fieldAccessorTable;
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_greptime_v1_region_RegionRequest_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_greptime_v1_region_RegionRequest_fieldAccessorTable;
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_greptime_v1_region_RegionResponse_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_greptime_v1_region_RegionResponse_fieldAccessorTable;
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_greptime_v1_region_RegionResponse_ExtensionsEntry_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_greptime_v1_region_RegionResponse_ExtensionsEntry_fieldAccessorTable;
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_greptime_v1_region_InsertRequests_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_greptime_v1_region_InsertRequests_fieldAccessorTable;
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_greptime_v1_region_DeleteRequests_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_greptime_v1_region_DeleteRequests_fieldAccessorTable;
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_greptime_v1_region_InsertRequest_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_greptime_v1_region_InsertRequest_fieldAccessorTable;
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_greptime_v1_region_DeleteRequest_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_greptime_v1_region_DeleteRequest_fieldAccessorTable;
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_greptime_v1_region_QueryRequest_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_greptime_v1_region_QueryRequest_fieldAccessorTable;
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_greptime_v1_region_CreateRequests_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_greptime_v1_region_CreateRequests_fieldAccessorTable;
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_greptime_v1_region_CreateRequest_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_greptime_v1_region_CreateRequest_fieldAccessorTable;
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_greptime_v1_region_CreateRequest_OptionsEntry_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_greptime_v1_region_CreateRequest_OptionsEntry_fieldAccessorTable;
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_greptime_v1_region_DropRequests_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_greptime_v1_region_DropRequests_fieldAccessorTable;
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_greptime_v1_region_DropRequest_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_greptime_v1_region_DropRequest_fieldAccessorTable;
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_greptime_v1_region_OpenRequest_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_greptime_v1_region_OpenRequest_fieldAccessorTable;
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_greptime_v1_region_OpenRequest_OptionsEntry_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_greptime_v1_region_OpenRequest_OptionsEntry_fieldAccessorTable;
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_greptime_v1_region_CloseRequest_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_greptime_v1_region_CloseRequest_fieldAccessorTable;
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_greptime_v1_region_AlterRequests_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_greptime_v1_region_AlterRequests_fieldAccessorTable;
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_greptime_v1_region_AlterRequest_descriptor;
   private static final 
     com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
       internal_static_greptime_v1_region_AlterRequest_fieldAccessorTable;
@@ -25516,6 +27320,16 @@ public io.greptime.v1.region.Server.RegionColumnDef getDefaultInstanceForType()
   private static final 
     com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
       internal_static_greptime_v1_region_RegionColumnDef_fieldAccessorTable;
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_greptime_v1_region_BulkInsertRequests_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_greptime_v1_region_BulkInsertRequests_fieldAccessorTable;
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_greptime_v1_region_BulkInsertRequest_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_greptime_v1_region_BulkInsertRequest_fieldAccessorTable;
 
   public static com.google.protobuf.Descriptors.FileDescriptor
       getDescriptor() {
@@ -25533,7 +27347,7 @@ public io.greptime.v1.region.Server.RegionColumnDef getDefaultInstanceForType()
       "onRequestHeader.TracingContextEntry\022\016\n\006d" +
       "bname\030\003 \001(\t\0220\n\rquery_context\030\006 \001(\0132\031.gre" +
       "ptime.v1.QueryContext\0325\n\023TracingContextE" +
-      "ntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\0028\001\"\375\005\n" +
+      "ntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\0028\001\"\275\006\n" +
       "\rRegionRequest\0227\n\006header\030\001 \001(\0132\'.greptim" +
       "e.v1.region.RegionRequestHeader\0225\n\007inser" +
       "ts\030\003 \001(\0132\".greptime.v1.region.InsertRequ" +
@@ -25552,73 +27366,80 @@ public io.greptime.v1.region.Server.RegionColumnDef getDefaultInstanceForType()
       "\007creates\030\r \001(\0132\".greptime.v1.region.Crea" +
       "teRequestsH\000\0221\n\005drops\030\016 \001(\0132 .greptime.v" +
       "1.region.DropRequestsH\000\0223\n\006alters\030\017 \001(\0132" +
-      "!.greptime.v1.region.AlterRequestsH\000B\006\n\004" +
-      "body\"\317\001\n\016RegionResponse\022+\n\006header\030\001 \001(\0132" +
-      "\033.greptime.v1.ResponseHeader\022\025\n\raffected" +
-      "_rows\030\002 \001(\004\022F\n\nextensions\030\003 \003(\01322.grepti" +
-      "me.v1.region.RegionResponse.ExtensionsEn" +
-      "try\0321\n\017ExtensionsEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005v" +
-      "alue\030\002 \001(\014:\0028\001\"E\n\016InsertRequests\0223\n\010requ" +
-      "ests\030\001 \003(\0132!.greptime.v1.region.InsertRe" +
-      "quest\"E\n\016DeleteRequests\0223\n\010requests\030\001 \003(" +
-      "\0132!.greptime.v1.region.DeleteRequest\"C\n\r" +
-      "InsertRequest\022\021\n\tregion_id\030\001 \001(\004\022\037\n\004rows" +
-      "\030\002 \001(\0132\021.greptime.v1.Rows\"C\n\rDeleteReque" +
-      "st\022\021\n\tregion_id\030\001 \001(\004\022\037\n\004rows\030\002 \001(\0132\021.gr" +
-      "eptime.v1.Rows\"h\n\014QueryRequest\0227\n\006header" +
-      "\030\001 \001(\0132\'.greptime.v1.region.RegionReques" +
-      "tHeader\022\021\n\tregion_id\030\002 \001(\004\022\014\n\004plan\030\003 \001(\014" +
-      "\"E\n\016CreateRequests\0223\n\010requests\030\001 \003(\0132!.g" +
-      "reptime.v1.region.CreateRequest\"\200\002\n\rCrea" +
-      "teRequest\022\021\n\tregion_id\030\001 \001(\004\022\016\n\006engine\030\002" +
-      " \001(\t\0228\n\013column_defs\030\003 \003(\0132#.greptime.v1." +
-      "region.RegionColumnDef\022\023\n\013primary_key\030\004 " +
-      "\003(\r\022\014\n\004path\030\005 \001(\t\022?\n\007options\030\006 \003(\0132..gre" +
-      "ptime.v1.region.CreateRequest.OptionsEnt" +
+      "!.greptime.v1.region.AlterRequestsH\000\022>\n\014" +
+      "bulk_inserts\030\020 \001(\0132&.greptime.v1.region." +
+      "BulkInsertRequestsH\000B\006\n\004body\"\317\001\n\016RegionR" +
+      "esponse\022+\n\006header\030\001 \001(\0132\033.greptime.v1.Re" +
+      "sponseHeader\022\025\n\raffected_rows\030\002 \001(\004\022F\n\ne" +
+      "xtensions\030\003 \003(\01322.greptime.v1.region.Reg" +
+      "ionResponse.ExtensionsEntry\0321\n\017Extension" +
+      "sEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001(\014:\0028\001\"E" +
+      "\n\016InsertRequests\0223\n\010requests\030\001 \003(\0132!.gre" +
+      "ptime.v1.region.InsertRequest\"E\n\016DeleteR" +
+      "equests\0223\n\010requests\030\001 \003(\0132!.greptime.v1." +
+      "region.DeleteRequest\"C\n\rInsertRequest\022\021\n" +
+      "\tregion_id\030\001 \001(\004\022\037\n\004rows\030\002 \001(\0132\021.greptim" +
+      "e.v1.Rows\"C\n\rDeleteRequest\022\021\n\tregion_id\030" +
+      "\001 \001(\004\022\037\n\004rows\030\002 \001(\0132\021.greptime.v1.Rows\"h" +
+      "\n\014QueryRequest\0227\n\006header\030\001 \001(\0132\'.greptim" +
+      "e.v1.region.RegionRequestHeader\022\021\n\tregio" +
+      "n_id\030\002 \001(\004\022\014\n\004plan\030\003 \001(\014\"E\n\016CreateReques" +
+      "ts\0223\n\010requests\030\001 \003(\0132!.greptime.v1.regio" +
+      "n.CreateRequest\"\200\002\n\rCreateRequest\022\021\n\treg" +
+      "ion_id\030\001 \001(\004\022\016\n\006engine\030\002 \001(\t\0228\n\013column_d" +
+      "efs\030\003 \003(\0132#.greptime.v1.region.RegionCol" +
+      "umnDef\022\023\n\013primary_key\030\004 \003(\r\022\014\n\004path\030\005 \001(" +
+      "\t\022?\n\007options\030\006 \003(\0132..greptime.v1.region." +
+      "CreateRequest.OptionsEntry\032.\n\014OptionsEnt" +
+      "ry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\0028\001\"A\n\014Dr" +
+      "opRequests\0221\n\010requests\030\001 \003(\0132\037.greptime." +
+      "v1.region.DropRequest\"3\n\013DropRequest\022\021\n\t" +
+      "region_id\030\001 \001(\004\022\021\n\tfast_path\030\002 \001(\010\"\255\001\n\013O" +
+      "penRequest\022\021\n\tregion_id\030\001 \001(\004\022\016\n\006engine\030" +
+      "\002 \001(\t\022\014\n\004path\030\003 \001(\t\022=\n\007options\030\004 \003(\0132,.g" +
+      "reptime.v1.region.OpenRequest.OptionsEnt" +
       "ry\032.\n\014OptionsEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value" +
-      "\030\002 \001(\t:\0028\001\"A\n\014DropRequests\0221\n\010requests\030\001" +
-      " \003(\0132\037.greptime.v1.region.DropRequest\"3\n" +
-      "\013DropRequest\022\021\n\tregion_id\030\001 \001(\004\022\021\n\tfast_" +
-      "path\030\002 \001(\010\"\255\001\n\013OpenRequest\022\021\n\tregion_id\030" +
-      "\001 \001(\004\022\016\n\006engine\030\002 \001(\t\022\014\n\004path\030\003 \001(\t\022=\n\007o" +
-      "ptions\030\004 \003(\0132,.greptime.v1.region.OpenRe" +
-      "quest.OptionsEntry\032.\n\014OptionsEntry\022\013\n\003ke" +
-      "y\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\0028\001\"!\n\014CloseReque" +
-      "st\022\021\n\tregion_id\030\001 \001(\004\"C\n\rAlterRequests\0222" +
-      "\n\010requests\030\001 \003(\0132 .greptime.v1.region.Al" +
-      "terRequest\"\306\003\n\014AlterRequest\022\021\n\tregion_id" +
-      "\030\001 \001(\004\0225\n\013add_columns\030\002 \001(\0132\036.greptime.v" +
-      "1.region.AddColumnsH\000\0227\n\014drop_columns\030\003 " +
-      "\001(\0132\037.greptime.v1.region.DropColumnsH\000\022=" +
-      "\n\023modify_column_types\030\005 \001(\0132\036.greptime.v" +
-      "1.ModifyColumnTypesH\000\0229\n\021set_table_optio" +
-      "ns\030\006 \001(\0132\034.greptime.v1.SetTableOptionsH\000" +
-      "\022=\n\023unset_table_options\030\t \001(\0132\036.greptime" +
-      ".v1.UnsetTableOptionsH\000\022*\n\tset_index\030\n \001" +
-      "(\0132\025.greptime.v1.SetIndexH\000\022.\n\013unset_ind" +
-      "ex\030\013 \001(\0132\027.greptime.v1.UnsetIndexH\000\022\026\n\016s" +
-      "chema_version\030\004 \001(\004B\006\n\004kind\"@\n\nAddColumn" +
-      "s\0222\n\013add_columns\030\001 \003(\0132\035.greptime.v1.reg" +
-      "ion.AddColumn\"C\n\013DropColumns\0224\n\014drop_col" +
-      "umns\030\001 \003(\0132\036.greptime.v1.region.DropColu" +
-      "mn\"v\n\tAddColumn\0227\n\ncolumn_def\030\001 \001(\0132#.gr" +
-      "eptime.v1.region.RegionColumnDef\0220\n\010loca" +
-      "tion\030\003 \001(\0132\036.greptime.v1.AddColumnLocati" +
-      "on\"\032\n\nDropColumn\022\014\n\004name\030\001 \001(\t\"!\n\014FlushR" +
-      "equest\022\021\n\tregion_id\030\001 \001(\004\"\t\n\007Regular\"&\n\014" +
-      "StrictWindow\022\026\n\016window_seconds\030\001 \001(\003\"\231\001\n" +
-      "\016CompactRequest\022\021\n\tregion_id\030\001 \001(\004\022.\n\007re" +
-      "gular\030\002 \001(\0132\033.greptime.v1.region.Regular" +
-      "H\000\0229\n\rstrict_window\030\003 \001(\0132 .greptime.v1." +
-      "region.StrictWindowH\000B\t\n\007options\"$\n\017Trun" +
-      "cateRequest\022\021\n\tregion_id\030\001 \001(\004\"P\n\017Region" +
-      "ColumnDef\022*\n\ncolumn_def\030\001 \001(\0132\026.greptime" +
-      ".v1.ColumnDef\022\021\n\tcolumn_id\030\002 \001(\r2Y\n\006Regi" +
-      "on\022O\n\006Handle\022!.greptime.v1.region.Region" +
-      "Request\032\".greptime.v1.region.RegionRespo" +
-      "nseB]\n\025io.greptime.v1.regionB\006ServerZ<gi" +
-      "thub.com/GreptimeTeam/greptime-proto/go/" +
-      "greptime/v1/regionb\006proto3"
+      "\030\002 \001(\t:\0028\001\"!\n\014CloseRequest\022\021\n\tregion_id\030" +
+      "\001 \001(\004\"C\n\rAlterRequests\0222\n\010requests\030\001 \003(\013" +
+      "2 .greptime.v1.region.AlterRequest\"\306\003\n\014A" +
+      "lterRequest\022\021\n\tregion_id\030\001 \001(\004\0225\n\013add_co" +
+      "lumns\030\002 \001(\0132\036.greptime.v1.region.AddColu" +
+      "mnsH\000\0227\n\014drop_columns\030\003 \001(\0132\037.greptime.v" +
+      "1.region.DropColumnsH\000\022=\n\023modify_column_" +
+      "types\030\005 \001(\0132\036.greptime.v1.ModifyColumnTy" +
+      "pesH\000\0229\n\021set_table_options\030\006 \001(\0132\034.grept" +
+      "ime.v1.SetTableOptionsH\000\022=\n\023unset_table_" +
+      "options\030\t \001(\0132\036.greptime.v1.UnsetTableOp" +
+      "tionsH\000\022*\n\tset_index\030\n \001(\0132\025.greptime.v1" +
+      ".SetIndexH\000\022.\n\013unset_index\030\013 \001(\0132\027.grept" +
+      "ime.v1.UnsetIndexH\000\022\026\n\016schema_version\030\004 " +
+      "\001(\004B\006\n\004kind\"@\n\nAddColumns\0222\n\013add_columns" +
+      "\030\001 \003(\0132\035.greptime.v1.region.AddColumn\"C\n" +
+      "\013DropColumns\0224\n\014drop_columns\030\001 \003(\0132\036.gre" +
+      "ptime.v1.region.DropColumn\"v\n\tAddColumn\022" +
+      "7\n\ncolumn_def\030\001 \001(\0132#.greptime.v1.region" +
+      ".RegionColumnDef\0220\n\010location\030\003 \001(\0132\036.gre" +
+      "ptime.v1.AddColumnLocation\"\032\n\nDropColumn" +
+      "\022\014\n\004name\030\001 \001(\t\"!\n\014FlushRequest\022\021\n\tregion" +
+      "_id\030\001 \001(\004\"\t\n\007Regular\"&\n\014StrictWindow\022\026\n\016" +
+      "window_seconds\030\001 \001(\003\"\231\001\n\016CompactRequest\022" +
+      "\021\n\tregion_id\030\001 \001(\004\022.\n\007regular\030\002 \001(\0132\033.gr" +
+      "eptime.v1.region.RegularH\000\0229\n\rstrict_win" +
+      "dow\030\003 \001(\0132 .greptime.v1.region.StrictWin" +
+      "dowH\000B\t\n\007options\"$\n\017TruncateRequest\022\021\n\tr" +
+      "egion_id\030\001 \001(\004\"P\n\017RegionColumnDef\022*\n\ncol" +
+      "umn_def\030\001 \001(\0132\026.greptime.v1.ColumnDef\022\021\n" +
+      "\tcolumn_id\030\002 \001(\r\"M\n\022BulkInsertRequests\0227" +
+      "\n\010requests\030\001 \003(\0132%.greptime.v1.region.Bu" +
+      "lkInsertRequest\"q\n\021BulkInsertRequest\022\021\n\t" +
+      "region_id\030\001 \001(\004\0228\n\014payload_type\030\002 \001(\0162\"." +
+      "greptime.v1.region.BulkInsertType\022\017\n\007pay" +
+      "load\030\003 \001(\014*\037\n\016BulkInsertType\022\r\n\tARROW_IP" +
+      "C\020\0002Y\n\006Region\022O\n\006Handle\022!.greptime.v1.re" +
+      "gion.RegionRequest\032\".greptime.v1.region." +
+      "RegionResponseB]\n\025io.greptime.v1.regionB" +
+      "\006ServerZ<github.com/GreptimeTeam/greptim" +
+      "e-proto/go/greptime/v1/regionb\006proto3"
     };
     descriptor = com.google.protobuf.Descriptors.FileDescriptor
       .internalBuildGeneratedFileFrom(descriptorData,
@@ -25644,7 +27465,7 @@ public io.greptime.v1.region.Server.RegionColumnDef getDefaultInstanceForType()
     internal_static_greptime_v1_region_RegionRequest_fieldAccessorTable = new
       com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
         internal_static_greptime_v1_region_RegionRequest_descriptor,
-        new java.lang.String[] { "Header", "Inserts", "Deletes", "Create", "Drop", "Open", "Close", "Alter", "Flush", "Compact", "Truncate", "Creates", "Drops", "Alters", "Body", });
+        new java.lang.String[] { "Header", "Inserts", "Deletes", "Create", "Drop", "Open", "Close", "Alter", "Flush", "Compact", "Truncate", "Creates", "Drops", "Alters", "BulkInserts", "Body", });
     internal_static_greptime_v1_region_RegionResponse_descriptor =
       getDescriptor().getMessageTypes().get(2);
     internal_static_greptime_v1_region_RegionResponse_fieldAccessorTable = new
@@ -25807,6 +27628,18 @@ public io.greptime.v1.region.Server.RegionColumnDef getDefaultInstanceForType()
       com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
         internal_static_greptime_v1_region_RegionColumnDef_descriptor,
         new java.lang.String[] { "ColumnDef", "ColumnId", });
+    internal_static_greptime_v1_region_BulkInsertRequests_descriptor =
+      getDescriptor().getMessageTypes().get(26);
+    internal_static_greptime_v1_region_BulkInsertRequests_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_greptime_v1_region_BulkInsertRequests_descriptor,
+        new java.lang.String[] { "Requests", });
+    internal_static_greptime_v1_region_BulkInsertRequest_descriptor =
+      getDescriptor().getMessageTypes().get(27);
+    internal_static_greptime_v1_region_BulkInsertRequest_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_greptime_v1_region_BulkInsertRequest_descriptor,
+        new java.lang.String[] { "RegionId", "PayloadType", "Payload", });
     io.greptime.v1.Common.getDescriptor();
     io.greptime.v1.RowData.getDescriptor();
     io.greptime.v1.Ddl.getDescriptor();
diff --git a/proto/greptime/v1/region/server.proto b/proto/greptime/v1/region/server.proto
index eab6b09b..8fb3fae5 100644
--- a/proto/greptime/v1/region/server.proto
+++ b/proto/greptime/v1/region/server.proto
@@ -53,6 +53,7 @@ message RegionRequest {
     CreateRequests creates = 13;
     DropRequests drops = 14;
     AlterRequests alters = 15;
+    BulkInsertRequests bulk_inserts = 16;
   }
 }
 
@@ -182,3 +183,16 @@ message RegionColumnDef {
   ColumnDef column_def = 1;
   uint32 column_id = 2;
 }
+
+// Request of bulk ingestion API.
+message BulkInsertRequests { repeated BulkInsertRequest requests = 1; }
+
+enum BulkInsertType {
+  ARROW_IPC = 0;
+}
+
+message BulkInsertRequest {
+  uint64 region_id = 1;
+  BulkInsertType payload_type = 2;
+  bytes payload = 3;
+}