Remove timestamp case from SnowflakeQueryStringBuilder (#2997)

Co-authored-by: Fal Bharadwaj <[email protected]>
Co-authored-by: burhan94 <[email protected]>

Author: 3 people

athena-snowflake/src/main/java/com/amazonaws/athena/connectors/snowflake/SnowflakeQueryStringBuilder.java

@@ -285,10 +285,6 @@ else if (value instanceof Number) {
                     return new SimpleDateFormat("yyyy-MM-dd").format(new Date(milliseconds));
                 }
             case Timestamp:
-                long millis = ((Number) value).longValue();
-                Timestamp timestamp = new Timestamp(millis);
-                SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
-                return sdf.format(timestamp);
             case Time:
             case Interval:
             case Binary:

athena-snowflake/src/test/java/com/amazonaws/athena/connectors/snowflake/SnowflakeQueryStringBuilderTest.java

@@ -22,7 +22,6 @@
 import com.amazonaws.athena.connector.lambda.domain.predicate.Constraints;
 import com.amazonaws.athena.connectors.jdbc.manager.TypeAndValue;
 import org.apache.arrow.vector.types.DateUnit;
-import org.apache.arrow.vector.types.TimeUnit;
 import org.apache.arrow.vector.types.pojo.ArrowType;
 import org.apache.arrow.vector.types.pojo.Field;
 import org.apache.arrow.vector.types.pojo.FieldType;
@@ -128,12 +127,6 @@ void testGetObjectForWhereClause_Date() {
         assertEquals("2023-03-15 00:00:00", result);
     }
 
-    @Test
-    void testGetObjectForWhereClause_Timestamp() {
-        Object result = queryBuilder.getObjectForWhereClause("created_at", 1711929600000L,  new ArrowType.Timestamp(TimeUnit.MILLISECOND, "UTC"));
-        assertEquals("2024-04-01 00:00:00", result);
-    }
-
     @Test
     void testToPredicateWithUnsupportedType() {
         assertThrows(UnsupportedOperationException.class, () ->