EntityFrameworkCore.PostgreSQL.SimpleBulks

A very simple .net core library that can help to sync a large number of records in-memory into the database using the COPY FROM STDIN command.

Overview

This library provides extension methods so that you can use with your EntityFrameworkCore DbContext instance DbContextExtensions.cs or you can use ConnectionContextExtensions.cs to work directly with a NpgsqlConnection instance without using EntityFrameworkCore.

Nuget

Database	Package	GitHub
SQL Server	EntityFrameworkCore.SqlServer.SimpleBulks	EntityFrameworkCore.SqlServer.SimpleBulks
PostgreSQL	EntityFrameworkCore.PostgreSQL.SimpleBulks	EntityFrameworkCore.PostgreSQL.SimpleBulks
MySQL	EntityFrameworkCore.MySQL.SimpleBulks	EntityFrameworkCore.MySQL.SimpleBulks

Features

Bulk Insert (requires PostgreSQL >= 17)
Bulk Update
Bulk Delete
Bulk Merge (requires PostgreSQL >= 17)
Bulk Match
Temp Table
Direct Insert
Direct Update
Direct Delete
Upsert

Examples

DbContextExtensionsExamples

Update the connection string ConnectionStrings.PostgreSQLConnectionString.
Build and run.

ConnectionExtensionsExamples

Update the connection string ConnectionStrings.PostgreSQLConnectionString.
Build and run.

DbContextExtensions

Using Lambda Expression

using EntityFrameworkCore.PostgreSQL.SimpleBulks.BulkDelete;
using EntityFrameworkCore.PostgreSQL.SimpleBulks.BulkInsert;
using EntityFrameworkCore.PostgreSQL.SimpleBulks.BulkMerge;
using EntityFrameworkCore.PostgreSQL.SimpleBulks.BulkUpdate;

// Insert all columns
await dbct.BulkInsertAsync(rows);
await dbct.BulkInsertAsync(compositeKeyRows);

// Insert selected columns only
await dbct.BulkInsertAsync(rows,
    row => new { row.Column1, row.Column2, row.Column3 });
await dbct.BulkInsertAsync(compositeKeyRows,
    row => new { row.Id1, row.Id2, row.Column1, row.Column2, row.Column3 });

await dbct.BulkUpdateAsync(rows,
    row => new { row.Column3, row.Column2 });
await dbct.BulkUpdateAsync(compositeKeyRows,
    row => new { row.Column3, row.Column2 });

await dbct.BulkMergeAsync(rows,
    row => row.Id,
    row => new { row.Column1, row.Column2 },
    row => new { row.Column1, row.Column2, row.Column3 });
await dbct.BulkMergeAsync(compositeKeyRows,
    row => new { row.Id1, row.Id2 },
    row => new { row.Column1, row.Column2, row.Column3 },
    row => new { row.Id1, row.Id2, row.Column1, row.Column2, row.Column3 });
                        
await dbct.BulkDeleteAsync(rows);
await dbct.BulkDeleteAsync(compositeKeyRows);

Using Dynamic String

using EntityFrameworkCore.PostgreSQL.SimpleBulks.BulkDelete;
using EntityFrameworkCore.PostgreSQL.SimpleBulks.BulkInsert;
using EntityFrameworkCore.PostgreSQL.SimpleBulks.BulkMerge;
using EntityFrameworkCore.PostgreSQL.SimpleBulks.BulkUpdate;

await dbct.BulkUpdateAsync(rows,
    [ "Column3", "Column2" ]);
await dbct.BulkUpdateAsync(compositeKeyRows,
    [ "Column3", "Column2" ]);

await dbct.BulkMergeAsync(rows,
    ["Id"],
    [ "Column1", "Column2" ],
    [ "Column1", "Column2", "Column3" ]);
await dbct.BulkMergeAsync(compositeKeyRows,
    [ "Id1", "Id2" ],
    [ "Column1", "Column2", "Column3" ],
    [ "Id1", "Id2", "Column1", "Column2", "Column3" ]);

Using Builder Approach in case you need both Dynamic & Lambda Expression

await dbct.CreateBulkInsertBuilder<Row>()
	.WithColumns(row => new { row.Column1, row.Column2, row.Column3 })
	// or .WithColumns([ "Column1", "Column2", "Column3" ])
	.ToTable(dbContext.GetTableInfor<Row>())
	.ExecuteAsync(rows);

ConnectionContextExtensions

Using Lambda Expression

using EntityFrameworkCore.PostgreSQL.SimpleBulks.BulkDelete;
using EntityFrameworkCore.PostgreSQL.SimpleBulks.BulkInsert;
using EntityFrameworkCore.PostgreSQL.SimpleBulks.BulkMerge;
using EntityFrameworkCore.PostgreSQL.SimpleBulks.BulkUpdate;

// Configure Mapping globaly

TableMapper.Configure<Row>(config =>
{
    config
    .TableName("Rows")
    .PrimaryKeys(x => x.Id)
    .OutputId(x => x.Id, OutputIdMode.ServerGenerated);
});

TableMapper.Configure<CompositeKeyRow>(config =>
{
    config
    .TableName("CompositeKeyRows")
    .PrimaryKeys(x => new { x.Id1, x.Id2 });
});

var connection = new ConnectionContext(new NpgsqlConnection(connectionString), null);

// Insert all columns
await connection.BulkInsertAsync(rows);
await connection.BulkInsertAsync(compositeKeyRows);

// Insert selected columns only
await connection.BulkInsertAsync(rows,
    row => new { row.Column1, row.Column2, row.Column3 });
await connection.BulkInsertAsync(compositeKeyRows,
    row => new { row.Id1, row.Id2, row.Column1, row.Column2, row.Column3 });

await connection.BulkUpdateAsync(rows,
    row => new { row.Column3, row.Column2 });
await connection.BulkUpdateAsync(compositeKeyRows,
    row => new { row.Column3, row.Column2 });

await connection.BulkMergeAsync(rows,
    row => row.Id,
    row => new { row.Column1, row.Column2 },
    row => new { row.Column1, row.Column2, row.Column3 });
await connection.BulkMergeAsync(compositeKeyRows,
    row => new { row.Id1, row.Id2 },
    row => new { row.Column1, row.Column2, row.Column3 },
    row => new { row.Id1, row.Id2, row.Column1, row.Column2, row.Column3 });
                        
await connection.BulkDeleteAsync(rows);
await connection.BulkDeleteAsync(compositeKeyRows);

Using Dynamic String

using EntityFrameworkCore.PostgreSQL.SimpleBulks.BulkDelete;
using EntityFrameworkCore.PostgreSQL.SimpleBulks.BulkInsert;
using EntityFrameworkCore.PostgreSQL.SimpleBulks.BulkMerge;
using EntityFrameworkCore.PostgreSQL.SimpleBulks.BulkUpdate;

var connection = new ConnectionContext(new NpgsqlConnection(connectionString), null);

await connection.BulkInsertAsync(rows,
    [ "Column1", "Column2", "Column3" ]);
await connection.BulkInsertAsync(compositeKeyRows,
    [ "Id1", "Id2", "Column1", "Column2", "Column3" ]);

await connection.BulkUpdateAsync(rows,
    [ "Column3", "Column2" ]);
await connection.BulkUpdateAsync(compositeKeyRows,
    [ "Column3", "Column2" ]);

await connection.BulkMergeAsync(rows,
    ["Id"],
    [ "Column1", "Column2" ],
    [ "Column1", "Column2", "Column3" ]);
await connection.BulkMergeAsync(compositeKeyRows,
    [ "Id1", "Id2" ],
    [ "Column1", "Column2", "Column3" ],
    [ "Id1", "Id2", "Column1", "Column2", "Column3" ]);

Using Builder Approach in case you need both Dynamic & Lambda Expression

await connection.CreateBulkInsertBuilder<Row>()
	.WithColumns(row => new { row.Column1, row.Column2, row.Column3 })
	// or .WithColumns([ "Column1", "Column2", "Column3" ])
	.ToTable(new NpgsqlTableInfor<Row>("Rows"))
	.ExecuteAsync(rows);

Execution Options

BulkInsert

await _context.BulkInsertAsync(rows,
    row => new { row.Column1, row.Column2, row.Column3 },
    new BulkInsertOptions
    {
        KeepIdentity = false,
        BatchSize = 0,
        Timeout = 30,
        LogTo = Console.WriteLine
    });

BulkUpdate

await _context.BulkUpdateAsync(rows,
    row => new { row.Column3, row.Column2 },
    new BulkUpdateOptions
    {
        BatchSize = 0,
        Timeout = 30,
        LogTo = Console.WriteLine
    });

BulkDelete

await _context.BulkDeleteAsync(rows,
    new BulkDeleteOptions
    {
        BatchSize = 0,
        Timeout = 30,
        LogTo = Console.WriteLine
    });

BulkMerge

await _context.BulkMergeAsync(rows,
    row => row.Id,
    row => new { row.Column1, row.Column2 },
    row => new { row.Column1, row.Column2, row.Column3 },
    new BulkMergeOptions
    {
        BatchSize = 0,
        Timeout = 30,
        ReturnDbGeneratedId = true,
        LogTo = Console.WriteLine
    });

BulkMatch

var contactsFromDb = await _context.BulkMatchAsync(matchedContacts,
    x => new { x.CustomerId, x.CountryIsoCode },
    new BulkMatchOptions
    {
        BatchSize = 0,
        Timeout = 30,
        LogTo = Console.WriteLine
    });

TempTable

var customerTableName = await _context.CreateTempTableAsync(customers,
    x => new
    {
        x.IdNumber,
        x.FirstName,
        x.LastName,
        x.CurrentCountryIsoCode
    },
    new TempTableOptions
    {
        BatchSize = 0,
        Timeout = 30,
        LogTo = Console.WriteLine
    });

DirectInsert

await _context.DirectInsertAsync(row,
    row => new { row.Column1, row.Column2, row.Column3 },
    new BulkInsertOptions
    {
        Timeout = 30,
        LogTo = Console.WriteLine
    });

DirectUpdate

await _context.DirectUpdateAsync(row,
    row => new { row.Column3, row.Column2 },
    new BulkUpdateOptions
    {
        Timeout = 30,
        LogTo = Console.WriteLine
    });

DirectDelete

await _context.DirectDeleteAsync(row,
    new BulkDeleteOptions
    {
        Timeout = 30,
        LogTo = Console.WriteLine
    });

Upsert

await _context.UpsertAsync(row,
    row => row.Id,
    row => new { row.Column1, row.Column2 },
    row => new { row.Column1, row.Column2, row.Column3 },
    new BulkMergeOptions
    {
        Timeout = 30,
        ReturnDbGeneratedId = true,
        LogTo = Console.WriteLine
    });

Returned Result

BulkUpdate

var updateResult = await dbct.BulkUpdateAsync(rows, row => new { row.Column3, row.Column2 });

Console.WriteLine($"Updated: {updateResult.AffectedRows} row(s)");

BulkDelete

var deleteResult = await dbct.BulkDeleteAsync(rows);

Console.WriteLine($"Deleted: {deleteResult.AffectedRows} row(s)");

BulkMerge

var mergeResult = await dbct.BulkMergeAsync(rows,
    row => row.Id,
    row => new { row.Column1, row.Column2 },
    row => new { row.Column1, row.Column2, row.Column3 });

Console.WriteLine($"Updated: {mergeResult.UpdatedRows} row(s)");
Console.WriteLine($"Inserted: {mergeResult.InsertedRows} row(s)");
Console.WriteLine($"Affected: {mergeResult.AffectedRows} row(s)");

Benchmarks

BulkInsert

Single Table /src/EntityFrameworkCore.PostgreSQL.SimpleBulks.Benchmarks/BulkInsertSingleTableBenchmarks.cs

BenchmarkDotNet=v0.13.2, OS=Windows 10 (10.0.19045.5011)
11th Gen Intel Core i7-1165G7 2.80GHz, 1 CPU, 8 logical and 4 physical cores
.NET SDK=8.0.400
  [Host]     : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
  Job-VUKETC : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2

InvocationCount=1  IterationCount=1  UnrollFactor=1  
WarmupCount=0

Method	RowsCount	Mean	Error	Gen0	Gen1	Gen2	Allocated
EFCoreInsert	100	24.87 ms	NA	-	-	-	1117.16 KB
BulkInsert	100	16.19 ms	NA	-	-	-	144.4 KB
EFCoreInsert	1000	116.08 ms	NA	1000.0000	1000.0000	-	10733.77 KB
BulkInsert	1000	26.10 ms	NA	-	-	-	909.45 KB
EFCoreInsert	10000	1,032.25 ms	NA	14000.0000	6000.0000	-	101319.22 KB
BulkInsert	10000	158.03 ms	NA	1000.0000	1000.0000	-	8484.25 KB
EFCoreInsert	100000	6,424.85 ms	NA	138000.0000	50000.0000	-	997459.33 KB
BulkInsert	100000	851.58 ms	NA	12000.0000	2000.0000	1000.0000	78651.35 KB
EFCoreInsert	250000	15,169.42 ms	NA	346000.0000	121000.0000	-	2469857.71 KB
BulkInsert	250000	2,049.98 ms	NA	28000.0000	1000.0000	-	193035.99 KB
EFCoreInsert	500000	34,492.82 ms	NA	693000.0000	240000.0000	-	4946532.22 KB
BulkInsert	500000	3,977.10 ms	NA	57000.0000	2000.0000	-	387290.34 KB

Multiple Tables (1x parent rows + 5x child rows) /src/EntityFrameworkCore.PostgreSQL.SimpleBulks.Benchmarks/BulkInsertMultipleTablesBenchmarks.cs

BenchmarkDotNet=v0.13.2, OS=Windows 10 (10.0.19045.5011)
11th Gen Intel Core i7-1165G7 2.80GHz, 1 CPU, 8 logical and 4 physical cores
.NET SDK=8.0.400
  [Host]     : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
  Job-LTFAOU : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2

InvocationCount=1  IterationCount=1  UnrollFactor=1  
WarmupCount=0

Method	RowsCount	Mean	Error	Gen0	Gen1	Gen2	Allocated
EFCoreInsert	100	145.08 ms	NA	1000.0000	1000.0000	-	8343.67 KB
BulkInsert	100	49.57 ms	NA	-	-	-	665.8 KB
EFCoreInsert	1000	795.13 ms	NA	11000.0000	5000.0000	-	78542.85 KB
BulkInsert	1000	188.83 ms	NA	-	-	-	5941.84 KB
EFCoreInsert	10000	6,722.98 ms	NA	109000.0000	41000.0000	-	772122.11 KB
BulkInsert	10000	1,302.40 ms	NA	9000.0000	2000.0000	1000.0000	55370.05 KB
EFCoreInsert	100000	61,476.01 ms	NA	1087000.0000	373000.0000	-	7687142.55 KB
BulkInsert	100000	12,805.28 ms	NA	82000.0000	4000.0000	-	548065.25 KB

BulkUpdate

/src/EntityFrameworkCore.PostgreSQL.SimpleBulks.Benchmarks/BulkUpdateBenchmarks.cs

BenchmarkDotNet=v0.13.2, OS=Windows 10 (10.0.19045.5011)
11th Gen Intel Core i7-1165G7 2.80GHz, 1 CPU, 8 logical and 4 physical cores
.NET SDK=8.0.400
  [Host]     : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
  Job-SKLMHH : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2

InvocationCount=1  IterationCount=1  UnrollFactor=1  
WarmupCount=0

Method	RowsCount	Mean	Error	Gen0	Gen1	Allocated
EFCoreUpdate	100	26.56 ms	NA	-	-	1056.89 KB
BulkUpdate	100	20.16 ms	NA	-	-	53.34 KB
EFCoreUpdate	1000	118.31 ms	NA	1000.0000	1000.0000	8172.52 KB
BulkUpdate	1000	29.87 ms	NA	-	-	415.93 KB
EFCoreUpdate	10000	1,000.87 ms	NA	10000.0000	3000.0000	75273.42 KB
BulkUpdate	10000	175.40 ms	NA	-	-	4012.16 KB
EFCoreUpdate	100000	7,526.76 ms	NA	104000.0000	28000.0000	735520.32 KB
BulkUpdate	100000	1,395.47 ms	NA	6000.0000	1000.0000	38947.02 KB
EFCoreUpdate	250000	18,029.63 ms	NA	260000.0000	70000.0000	1818097.27 KB
BulkUpdate	250000	4,606.96 ms	NA	15000.0000	3000.0000	97174.13 KB

BenchmarkDotNet=v0.13.2, OS=Windows 10 (10.0.19045.5011)
11th Gen Intel Core i7-1165G7 2.80GHz, 1 CPU, 8 logical and 4 physical cores
.NET SDK=8.0.400
  [Host]     : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
  Job-FVGKFX : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2

InvocationCount=1  IterationCount=1  UnrollFactor=1  
WarmupCount=0

Method	RowsCount	Mean	Error	Gen0	Gen1	Allocated
BulkUpdate	500000	14.99 s	NA	31000.0000	6000.0000	189.67 MB
BulkUpdate	1000000	52.35 s	NA	63000.0000	13000.0000	379.21 MB

BulkDelete

/src/EntityFrameworkCore.PostgreSQL.SimpleBulks.Benchmarks/BulkDeleteBenchmarks.cs

BenchmarkDotNet=v0.13.2, OS=Windows 10 (10.0.19045.5011)
11th Gen Intel Core i7-1165G7 2.80GHz, 1 CPU, 8 logical and 4 physical cores
.NET SDK=8.0.400
  [Host]     : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
  Job-SKLMHH : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2

InvocationCount=1  IterationCount=1  UnrollFactor=1  
WarmupCount=0

Method	RowsCount	Mean	Error	Gen0	Gen1	Allocated
EFCoreDelete	100	18.97 ms	NA	-	-	675.7 KB
BulkDelete	100	16.18 ms	NA	-	-	25.73 KB
EFCoreDelete	1000	127.17 ms	NA	1000.0000	1000.0000	6448.29 KB
BulkDelete	1000	41.02 ms	NA	-	-	166.36 KB
EFCoreDelete	10000	941.10 ms	NA	9000.0000	2000.0000	61677.63 KB
BulkDelete	10000	209.25 ms	NA	-	-	1572.33 KB
EFCoreDelete	20000	2,188.30 ms	NA	17000.0000	6000.0000	122600.81 KB
BulkDelete	20000	324.00 ms	NA	-	-	3135.3 KB
EFCoreDelete	50000	3,430.29 ms	NA	43000.0000	11000.0000	301041.3 KB
BulkDelete	50000	756.71 ms	NA	1000.0000	-	7822.52 KB

BenchmarkDotNet=v0.13.2, OS=Windows 10 (10.0.19045.5011)
11th Gen Intel Core i7-1165G7 2.80GHz, 1 CPU, 8 logical and 4 physical cores
.NET SDK=8.0.400
  [Host]     : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
  Job-RRDFUF : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2

InvocationCount=1  IterationCount=1  UnrollFactor=1  
WarmupCount=0

Method	RowsCount	Mean	Error	Gen0	Gen1	Allocated
BulkDelete	100000	2.108 s	NA	2000.0000	1000.0000	15.27 MB
BulkDelete	250000	3.905 s	NA	6000.0000	1000.0000	38.16 MB
BulkDelete	500000	7.768 s	NA	12000.0000	1000.0000	76.3 MB
BulkDelete	1000000	15.895 s	NA	25000.0000	1000.0000	152.6 MB

BulkMerge

/src/EntityFrameworkCore.PostgreSQL.SimpleBulks.Benchmarks/BulkMergeBenchmarks.cs

BenchmarkDotNet=v0.13.2, OS=Windows 10 (10.0.19045.5011)
11th Gen Intel Core i7-1165G7 2.80GHz, 1 CPU, 8 logical and 4 physical cores
.NET SDK=8.0.400
  [Host]     : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
  Job-SKLMHH : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2

InvocationCount=1  IterationCount=1  UnrollFactor=1  
WarmupCount=0

Method	RowsCount	Mean	Error	Gen0	Gen1	Allocated
EFCoreUpsert	100	39.72 ms	NA	-	-	2138.82 KB
BulkMerge	100	31.75 ms	NA	-	-	201.27 KB
EFCoreUpsert	1000	446.34 ms	NA	2000.0000	1000.0000	18676.95 KB
BulkMerge	1000	60.98 ms	NA	-	-	1821.43 KB
EFCoreUpsert	10000	2,293.35 ms	NA	24000.0000	10000.0000	175741.33 KB
BulkMerge	10000	315.95 ms	NA	2000.0000	1000.0000	17002.34 KB
EFCoreUpsert	100000	14,094.90 ms	NA	243000.0000	75000.0000	1735002.65 KB
BulkMerge	100000	1,933.37 ms	NA	26000.0000	1000.0000	168875.89 KB
EFCoreUpsert	250000	34,470.08 ms	NA	607000.0000	190000.0000	4292407.68 KB
BulkMerge	250000	5,091.40 ms	NA	64000.0000	3000.0000	418668.28 KB

/src/EntityFrameworkCore.PostgreSQL.SimpleBulks.Benchmarks/BulkMergeReturnDbGeneratedIdBenchmarks.cs

BenchmarkDotNet=v0.13.2, OS=Windows 10 (10.0.19045.5011)
11th Gen Intel Core i7-1165G7 2.80GHz, 1 CPU, 8 logical and 4 physical cores
.NET SDK=8.0.400
  [Host]     : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
  Job-SKLMHH : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2

InvocationCount=1  IterationCount=1  UnrollFactor=1  
WarmupCount=0

Method	RowsCount	Mean	Error	Gen0	Gen1	Allocated
ReturnDbGeneratedId	100	15.65 ms	NA	-	-	189.59 KB
NotReturnDbGeneratedId	100	20.96 ms	NA	-	-	148.23 KB
ReturnDbGeneratedId	1000	47.67 ms	NA	-	-	1707.91 KB
NotReturnDbGeneratedId	1000	49.77 ms	NA	-	-	1301.91 KB
ReturnDbGeneratedId	10000	234.40 ms	NA	2000.0000	1000.0000	15867.1 KB
NotReturnDbGeneratedId	10000	441.70 ms	NA	1000.0000	-	11897.58 KB
ReturnDbGeneratedId	100000	2,330.98 ms	NA	24000.0000	1000.0000	157522.2 KB
NotReturnDbGeneratedId	100000	1,674.64 ms	NA	19000.0000	1000.0000	118806.84 KB

BenchmarkDotNet=v0.13.2, OS=Windows 10 (10.0.19045.5011)
11th Gen Intel Core i7-1165G7 2.80GHz, 1 CPU, 8 logical and 4 physical cores
.NET SDK=8.0.400
  [Host]     : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
  Job-FVGKFX : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2

InvocationCount=1  IterationCount=1  UnrollFactor=1  
WarmupCount=0

Method	RowsCount	Mean	Error	Gen0	Gen1	Allocated
ReturnDbGeneratedId	250000	5.101 s	NA	60000.0000	1000.0000	381.14 MB
NotReturnDbGeneratedId	250000	4.681 s	NA	48000.0000	1000.0000	290.02 MB
ReturnDbGeneratedId	500000	10.377 s	NA	121000.0000	3000.0000	763.73 MB
NotReturnDbGeneratedId	500000	9.393 s	NA	96000.0000	1000.0000	580.01 MB
ReturnDbGeneratedId	1000000	21.818 s	NA	243000.0000	6000.0000	1529.56 MB
NotReturnDbGeneratedId	1000000	22.181 s	NA	193000.0000	2000.0000	1160.27 MB

BulkMatch

Single Column /src/EntityFrameworkCore.PostgreSQL.SimpleBulks.Benchmarks/BulkMatchSingleColumnBenchmarks.cs

BenchmarkDotNet=v0.13.2, OS=Windows 10 (10.0.19045.5011)
11th Gen Intel Core i7-1165G7 2.80GHz, 1 CPU, 8 logical and 4 physical cores
.NET SDK=8.0.400
  [Host]     : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
  Job-SKLMHH : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2

InvocationCount=1  IterationCount=1  UnrollFactor=1  
WarmupCount=0

Method	RowsCount	Mean	Error	Gen0	Gen1	Gen2	Allocated
EFCoreSelect	100	107.695 ms	NA	-	-	-	765.44 KB
EFCoreBatchSelect	100	3.477 ms	NA	-	-	-	60.54 KB
BulkMatch	100	8.764 ms	NA	-	-	-	85.45 KB
EFCoreSelect	1000	862.412 ms	NA	1000.0000	-	-	7361.88 KB
EFCoreBatchSelect	1000	6.029 ms	NA	-	-	-	511.2 KB
BulkMatch	1000	12.584 ms	NA	-	-	-	740.02 KB
EFCoreSelect	10000	8,139.137 ms	NA	11000.0000	1000.0000	-	70483.66 KB
EFCoreBatchSelect	10000	34.499 ms	NA	-	-	-	5127.73 KB
BulkMatch	10000	59.851 ms	NA	1000.0000	-	-	7522.84 KB
EFCoreSelect	100000	74,961.618 ms	NA	115000.0000	24000.0000	1000.0000	705096.2 KB
EFCoreBatchSelect	100000	526.386 ms	NA	7000.0000	2000.0000	-	51371.59 KB
BulkMatch	100000	376.410 ms	NA	11000.0000	4000.0000	-	71420.53 KB

BenchmarkDotNet=v0.13.2, OS=Windows 10 (10.0.19045.5011)
11th Gen Intel Core i7-1165G7 2.80GHz, 1 CPU, 8 logical and 4 physical cores
.NET SDK=8.0.400
  [Host]     : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
  Job-FVGKFX : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2

InvocationCount=1  IterationCount=1  UnrollFactor=1  
WarmupCount=0

Method	RowsCount	Mean	Error	Gen0	Gen1	Gen2	Allocated
EFCoreBatchSelect	250000	912.3 ms	NA	16000.0000	8000.0000	-	112.49 MB
BulkMatch	250000	1,010.1 ms	NA	29000.0000	9000.0000	1000.0000	173.6 MB
EFCoreBatchSelect	500000	1,516.4 ms	NA	34000.0000	17000.0000	1000.0000	224.89 MB
BulkMatch	500000	2,572.8 ms	NA	57000.0000	17000.0000	1000.0000	347.35 MB
EFCoreBatchSelect	1000000	3,360.8 ms	NA	68000.0000	34000.0000	1000.0000	449.7 MB
BulkMatch	1000000	3,810.3 ms	NA	113000.0000	32000.0000	1000.0000	694.86 MB

Multiple Columns /src/EntityFrameworkCore.PostgreSQL.SimpleBulks.Benchmarks/BulkMatchMultipleColumnsBenchmarks.cs

BenchmarkDotNet=v0.13.2, OS=Windows 10 (10.0.19045.5011)
11th Gen Intel Core i7-1165G7 2.80GHz, 1 CPU, 8 logical and 4 physical cores
.NET SDK=8.0.400
  [Host]     : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
  Job-SKLMHH : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2

InvocationCount=1  IterationCount=1  UnrollFactor=1  
WarmupCount=0

Method	RowsCount	Mean	Error	Gen0	Gen1	Allocated
EFCoreSelect	100	104.54 ms	NA	-	-	987.75 KB
BulkMatch	100	11.92 ms	NA	-	-	154.95 KB
EFCoreSelect	1000	1,129.42 ms	NA	1000.0000	-	9372.7 KB
BulkMatch	1000	26.21 ms	NA	-	-	1342.45 KB
EFCoreSelect	10000	8,849.80 ms	NA	14000.0000	3000.0000	91054.35 KB
BulkMatch	10000	133.98 ms	NA	2000.0000	1000.0000	13648.6 KB
EFCoreSelect	100000	79,089.28 ms	NA	148000.0000	38000.0000	910681.02 KB
BulkMatch	100000	770.69 ms	NA	20000.0000	5000.0000	129760.33 KB

BenchmarkDotNet=v0.13.2, OS=Windows 10 (10.0.19045.5011)
11th Gen Intel Core i7-1165G7 2.80GHz, 1 CPU, 8 logical and 4 physical cores
.NET SDK=8.0.400
  [Host]     : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
  Job-FVGKFX : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2

InvocationCount=1  IterationCount=1  UnrollFactor=1  
WarmupCount=0

Method	RowsCount	Mean	Error	Gen0	Gen1	Allocated
BulkMatch	250000	3.090 s	NA	51000.0000	13000.0000	318.85 MB
BulkMatch	500000	4.753 s	NA	104000.0000	27000.0000	640.03 MB
BulkMatch	1000000	9.823 s	NA	209000.0000	54000.0000	1282.65 MB

TempTable

/src/EntityFrameworkCore.PostgreSQL.SimpleBulks.Benchmarks/TempTableBenchmarks.cs

BenchmarkDotNet=v0.13.2, OS=Windows 10 (10.0.19045.5011)
11th Gen Intel Core i7-1165G7 2.80GHz, 1 CPU, 8 logical and 4 physical cores
.NET SDK=8.0.400
  [Host]     : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2
  Job-SKLMHH : .NET 8.0.8 (8.0.824.36612), X64 RyuJIT AVX2

InvocationCount=1  IterationCount=1  UnrollFactor=1  
WarmupCount=0

Method	RowsCount	Mean	Error	Gen0	Gen1	Gen2	Allocated
CreateTempTable	100	11.01 ms	NA	-	-	-	120.83 KB
CreateTempTable	1000	22.78 ms	NA	-	-	-	732.55 KB
CreateTempTable	10000	106.20 ms	NA	1000.0000	1000.0000	-	6851.52 KB
CreateTempTable	100000	335.78 ms	NA	12000.0000	2000.0000	1000.0000	68058.16 KB
CreateTempTable	250000	823.61 ms	NA	27000.0000	1000.0000	-	170011.08 KB
CreateTempTable	500000	1,586.69 ms	NA	55000.0000	1000.0000	-	339932.95 KB
CreateTempTable	1000000	3,280.07 ms	NA	110000.0000	1000.0000	-	679776.7 KB

License

EntityFrameworkCore.PostgreSQL.SimpleBulks is licensed under the MIT license.

Name		Name	Last commit message	Last commit date
Latest commit History 172 Commits
.github		.github
src		src
.gitignore		.gitignore
LICENSE		LICENSE
README.md		README.md

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phongnguyend/EntityFrameworkCore.PostgreSQL.SimpleBulks

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EntityFrameworkCore.PostgreSQL.SimpleBulks

Overview

Nuget

Features

Examples

DbContextExtensions

Using Lambda Expression

Using Dynamic String

Using Builder Approach in case you need both Dynamic & Lambda Expression

ConnectionContextExtensions

Using Lambda Expression

Using Dynamic String

Using Builder Approach in case you need both Dynamic & Lambda Expression

Execution Options

BulkInsert

BulkUpdate

BulkDelete

BulkMerge

BulkMatch

TempTable

DirectInsert

DirectUpdate

DirectDelete

Upsert

Returned Result

BulkUpdate

BulkDelete

BulkMerge

Benchmarks

BulkInsert

BulkUpdate

BulkDelete

BulkMerge

BulkMatch

TempTable

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