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Support picosecond tiemstamps when writing GenericRecord and Beam Rows. #37294

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Merged
claudevdm merged 1 commit into from
Jan 14, 2026
+57 −0
Merged

Support picosecond tiemstamps when writing GenericRecord and Beam Rows. #37294

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3 changes: 3 additions & 0 deletions ...src/main/java/org/apache/beam/sdk/io/gcp/bigquery/AvroGenericRecordToStorageApiProto.java
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Original file line number Diff line number Diff line change
Expand Up @@ -348,6 +348,9 @@ private static TableFieldSchema fieldDescriptorFromAvroField(org.apache.avro.Sch
fieldDescriptorFromAvroField(
new Schema.Field(field.name(), elementType, field.doc(), field.defaultVal()));
builder = builder.setType(elementFieldSchema.getType());
if (elementFieldSchema.hasTimestampPrecision()) {
builder.setTimestampPrecision(elementFieldSchema.getTimestampPrecision());
}
builder.addAllFields(elementFieldSchema.getFieldsList());
builder = builder.setMode(TableFieldSchema.Mode.REPEATED);
break;
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3 changes: 3 additions & 0 deletions ...-platform/src/main/java/org/apache/beam/sdk/io/gcp/bigquery/BeamRowToStorageApiProto.java
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Original file line number Diff line number Diff line change
Expand Up @@ -237,6 +237,9 @@ private static TableFieldSchema fieldDescriptorFromBeamField(Field field) {
TableFieldSchema elementFieldSchema =
fieldDescriptorFromBeamField(Field.of(field.getName(), elementType));
builder = builder.setType(elementFieldSchema.getType());
if (elementFieldSchema.hasTimestampPrecision()) {
builder = builder.setTimestampPrecision(elementFieldSchema.getTimestampPrecision());
}
builder.addAllFields(elementFieldSchema.getFieldsList());
builder = builder.setMode(TableFieldSchema.Mode.REPEATED);
break;
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34 changes: 34 additions & 0 deletions ...test/java/org/apache/beam/sdk/io/gcp/bigquery/AvroGenericRecordToStorageApiProtoTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -348,7 +348,23 @@ private static Schema createTimestampNanosSchema() {
.endRecord();
}

private static Schema createRepeatedTimestampNanosSchema() {
Schema longSchema = Schema.create(Schema.Type.LONG);
longSchema.addProp("logicalType", "timestamp-nanos");

Schema arraySchema = Schema.createArray(longSchema);

return SchemaBuilder.record("RepeatedTimestampNanosRecord")
.fields()
.name("timestampNanosArray")
.type(arraySchema)
.noDefault()
.endRecord();
}

private static final Schema TIMESTAMP_NANOS_SCHEMA = createTimestampNanosSchema();
private static final Schema REPEATED_TIMESTAMP_NANOS_SCHEMA =
createRepeatedTimestampNanosSchema();

private static GenericRecord baseRecord;
private static GenericRecord rawLogicalTypesRecord;
Expand Down Expand Up @@ -885,4 +901,22 @@ public void testProtoTableSchemaFromAvroSchemaTimestampNanos() {
assertTrue(field.hasTimestampPrecision());
assertEquals(12L, field.getTimestampPrecision().getValue());
}

@Test
public void testProtoTableSchemaFromAvroSchemaRepeatedTimestampNanos() {
com.google.cloud.bigquery.storage.v1.TableSchema protoSchema =
AvroGenericRecordToStorageApiProto.protoTableSchemaFromAvroSchema(
REPEATED_TIMESTAMP_NANOS_SCHEMA);

assertEquals(1, protoSchema.getFieldsCount());
com.google.cloud.bigquery.storage.v1.TableFieldSchema field = protoSchema.getFields(0);

assertEquals("timestampnanosarray", field.getName());
assertEquals(
com.google.cloud.bigquery.storage.v1.TableFieldSchema.Type.TIMESTAMP, field.getType());
assertEquals(
com.google.cloud.bigquery.storage.v1.TableFieldSchema.Mode.REPEATED, field.getMode());

assertEquals(12L, field.getTimestampPrecision().getValue());
}
}
17 changes: 17 additions & 0 deletions ...tform/src/test/java/org/apache/beam/sdk/io/gcp/bigquery/BeamRowToStorageApiProtoTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -69,6 +69,10 @@ public class BeamRowToStorageApiProtoTest {
Schema.builder()
.addField("timestampNanos", FieldType.logicalType(Timestamp.NANOS).withNullable(true))
.build();
private static final Schema TIMESTAMP_NANOS_ARRAY_SCHEMA =
Schema.builder()
.addField("timestampNanosArray", FieldType.array(FieldType.logicalType(Timestamp.NANOS)))
.build();
private static final EnumerationType TEST_ENUM =
EnumerationType.create("ONE", "TWO", "RED", "BLUE");
private static final Schema BASE_SCHEMA =
Expand Down Expand Up @@ -614,6 +618,19 @@ public void testTimestampNanosSchema() {
assertEquals(12L, field.getTimestampPrecision().getValue());
}

@Test
public void testTimestampNanosArraySchema() {
com.google.cloud.bigquery.storage.v1.TableSchema protoSchema =
BeamRowToStorageApiProto.protoTableSchemaFromBeamSchema(TIMESTAMP_NANOS_ARRAY_SCHEMA);

assertEquals(1, protoSchema.getFieldsCount());
TableFieldSchema field = protoSchema.getFields(0);
assertEquals(TableFieldSchema.Type.TIMESTAMP, field.getType());
assertEquals(
com.google.cloud.bigquery.storage.v1.TableFieldSchema.Mode.REPEATED, field.getMode());
assertEquals(12L, field.getTimestampPrecision().getValue());
}

@Test
public void testTimestampNanosDescriptor() throws Exception {
DescriptorProto descriptor =
Expand Down
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