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https://issues.apache.org/jira/browse/FLINK-34935?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17848664#comment-17848664
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Pietro commented on FLINK-34935:
--------------------------------
Related issue: FLINK-35053
> TIMESTAMP_LTZ type Unsupported when using JdbcCatalog to read from Postgres
> ---------------------------------------------------------------------------
>
> Key: FLINK-34935
> URL: https://issues.apache.org/jira/browse/FLINK-34935
> Project: Flink
> Issue Type: Bug
> Components: Connectors / JDBC
> Affects Versions: 1.18.1
> Environment: flink: 1.17.0
> flink-connector-jdbc: 3.1.0-1.17
> postgres: 14.5
> java: 11
> Reporter: Du Yuzhou
> Priority: Major
> Labels: flink, jdbc_connector, postgres
> Original Estimate: 72h
> Remaining Estimate: 72h
>
> When I use JdbcCatalog to select from postgres table, it throw Exception:
> {code:java}
> Exception in thread "main" java.lang.UnsupportedOperationException:
> Unsupported type:TIMESTAMP_LTZ(6)
> at
> org.apache.flink.connector.jdbc.converter.AbstractJdbcRowConverter.createInternalConverter(AbstractJdbcRowConverter.java:186)
> at
> org.apache.flink.connector.jdbc.internal.converter.PostgresRowConverter.createPrimitiveConverter(PostgresRowConverter.java:99)
> at
> org.apache.flink.connector.jdbc.internal.converter.PostgresRowConverter.createInternalConverter(PostgresRowConverter.java:58)
> at
> org.apache.flink.connector.jdbc.converter.AbstractJdbcRowConverter.createNullableInternalConverter(AbstractJdbcRowConverter.java:118)
> at
> org.apache.flink.connector.jdbc.converter.AbstractJdbcRowConverter.<init>(AbstractJdbcRowConverter.java:68)
> at
> org.apache.flink.connector.jdbc.internal.converter.PostgresRowConverter.<init>(PostgresRowConverter.java:47)
> at
> org.apache.flink.connector.jdbc.dialect.psql.PostgresDialect.getRowConverter(PostgresDialect.java:50)
> at
> org.apache.flink.connector.jdbc.table.JdbcDynamicTableSource.getScanRuntimeProvider(JdbcDynamicTableSource.java:182)
> at
> org.apache.flink.table.planner.connectors.DynamicSourceUtils.validateScanSource(DynamicSourceUtils.java:466)
> at
> org.apache.flink.table.planner.connectors.DynamicSourceUtils.prepareDynamicSource(DynamicSourceUtils.java:161)
> at
> org.apache.flink.table.planner.connectors.DynamicSourceUtils.convertSourceToRel(DynamicSourceUtils.java:125)
> at
> org.apache.flink.table.planner.plan.schema.CatalogSourceTable.toRel(CatalogSourceTable.java:118)
> at
> org.apache.calcite.rel.core.RelFactories$TableScanFactoryImpl.createScan(RelFactories.java:481)
> at org.apache.calcite.tools.RelBuilder.scan(RelBuilder.java:1757)
> at
> org.apache.flink.table.planner.plan.QueryOperationConverter$SingleRelVisitor.visit(QueryOperationConverter.java:366)
> at
> org.apache.flink.table.planner.plan.QueryOperationConverter$SingleRelVisitor.visit(QueryOperationConverter.java:158)
> at
> org.apache.flink.table.operations.SourceQueryOperation.accept(SourceQueryOperation.java:86)
> at
> org.apache.flink.table.planner.plan.QueryOperationConverter.defaultMethod(QueryOperationConverter.java:155)
> at
> org.apache.flink.table.planner.plan.QueryOperationConverter.defaultMethod(QueryOperationConverter.java:135)
> at
> org.apache.flink.table.operations.utils.QueryOperationDefaultVisitor.visit(QueryOperationDefaultVisitor.java:92)
> at
> org.apache.flink.table.operations.SourceQueryOperation.accept(SourceQueryOperation.java:86)
> at
> org.apache.flink.table.planner.calcite.FlinkRelBuilder.queryOperation(FlinkRelBuilder.java:261)
> at
> org.apache.flink.table.planner.catalog.QueryOperationCatalogViewTable.convertToRel(QueryOperationCatalogViewTable.java:80)
> at
> org.apache.flink.table.planner.plan.schema.ExpandingPreparingTable.expand(ExpandingPreparingTable.java:70)
> at
> org.apache.flink.table.planner.plan.schema.ExpandingPreparingTable.toRel(ExpandingPreparingTable.java:57)
> at
> org.apache.calcite.sql2rel.SqlToRelConverter.toRel(SqlToRelConverter.java:3743)
> at
> org.apache.calcite.sql2rel.SqlToRelConverter.convertIdentifier(SqlToRelConverter.java:2666)
> at
> org.apache.calcite.sql2rel.SqlToRelConverter.convertFrom(SqlToRelConverter.java:2233)
> at
> org.apache.calcite.sql2rel.SqlToRelConverter.convertFrom(SqlToRelConverter.java:2147)
> at
> org.apache.calcite.sql2rel.SqlToRelConverter.convertFrom(SqlToRelConverter.java:2092)
> at
> org.apache.calcite.sql2rel.SqlToRelConverter.convertSelectImpl(SqlToRelConverter.java:700)
> at
> org.apache.calcite.sql2rel.SqlToRelConverter.convertSelect(SqlToRelConverter.java:686)
> at
> org.apache.calcite.sql2rel.SqlToRelConverter.convertQueryRecursive(SqlToRelConverter.java:3589)
> at
> org.apache.calcite.sql2rel.SqlToRelConverter.convertQuery(SqlToRelConverter.java:599)
> at
> org.apache.flink.table.planner.calcite.FlinkPlannerImpl.org$apache$flink$table$planner$calcite$FlinkPlannerImpl$$rel(FlinkPlannerImpl.scala:216)
> at
> org.apache.flink.table.planner.calcite.FlinkPlannerImpl.rel(FlinkPlannerImpl.scala:192)
> at
> org.apache.flink.table.planner.operations.SqlToOperationConverter.toQueryOperation(SqlToOperationConverter.java:1580)
> at
> org.apache.flink.table.planner.operations.SqlToOperationConverter.convertSqlQuery(SqlToOperationConverter.java:1285)
> at
> org.apache.flink.table.planner.operations.SqlToOperationConverter.convertValidatedSqlNode(SqlToOperationConverter.java:397)
> at
> org.apache.flink.table.planner.operations.SqlToOperationConverter.convert(SqlToOperationConverter.java:282)
> at
> org.apache.flink.table.planner.delegation.ParserImpl.parse(ParserImpl.java:106)
> at
> org.apache.flink.table.api.internal.TableEnvironmentImpl.sqlQuery(TableEnvironmentImpl.java:738)
> at com.demo.flow.ExportCsvFlow.run(ExportCsvFlow.java:76)
> at com.demo.DataflowJob.main(DataflowJob.java:110) {code}
>
> The source table is a postgres table, which schema is:
> {code:java}
> create table t_test (
> id integer primary key,
> name timestamptz
> );{code}
>
> I've read the relevant code and roughly located where the problem is. Can I
> make some code contribution to fix this problem?
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