Dawid Wysakowicz created FLINK-18434:
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Summary: Can not select fields with JdbcCatalog
Key: FLINK-18434
URL: https://issues.apache.org/jira/browse/FLINK-18434
Project: Flink
Issue Type: Bug
Components: Table SQL / Planner
Affects Versions: 1.11.0
Reporter: Dawid Wysakowicz
A query which selects fields from a table will fail if we set the
PostgresCatalog as default.
Steps to reproduce:
# Create postgres catalog and set it as default
# Create any table (in any catalog)
# Query that table with {{SELECT field FROM t}} (Important it must be a field
name not '{{*}}'
# The query will fail
Stack trace:
{code}
org.apache.flink.table.client.gateway.SqlExecutionException: Invalidate SQL
statement.
at
org.apache.flink.table.client.cli.SqlCommandParser.parseBySqlParser(SqlCommandParser.java:100)
~[flink-sql-client_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.flink.table.client.cli.SqlCommandParser.parse(SqlCommandParser.java:91)
~[flink-sql-client_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.flink.table.client.cli.CliClient.parseCommand(CliClient.java:257)
[flink-sql-client_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at org.apache.flink.table.client.cli.CliClient.open(CliClient.java:211)
[flink-sql-client_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at org.apache.flink.table.client.SqlClient.openCli(SqlClient.java:142)
[flink-sql-client_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at org.apache.flink.table.client.SqlClient.start(SqlClient.java:114)
[flink-sql-client_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at org.apache.flink.table.client.SqlClient.main(SqlClient.java:201)
[flink-sql-client_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
Caused by: org.apache.flink.table.api.ValidationException: SQL validation
failed. null
at
org.apache.flink.table.planner.calcite.FlinkPlannerImpl.org$apache$flink$table$planner$calcite$FlinkPlannerImpl$$validate(FlinkPlannerImpl.scala:146)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.flink.table.planner.calcite.FlinkPlannerImpl.validate(FlinkPlannerImpl.scala:108)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.flink.table.planner.operations.SqlToOperationConverter.convert(SqlToOperationConverter.java:187)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.flink.table.planner.delegation.ParserImpl.parse(ParserImpl.java:78)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.flink.table.client.gateway.local.LocalExecutor$1.lambda$parse$0(LocalExecutor.java:430)
~[flink-sql-client_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.flink.table.client.gateway.local.ExecutionContext.wrapClassLoader(ExecutionContext.java:255)
~[flink-sql-client_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.flink.table.client.gateway.local.LocalExecutor$1.parse(LocalExecutor.java:430)
~[flink-sql-client_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.flink.table.client.cli.SqlCommandParser.parseBySqlParser(SqlCommandParser.java:98)
~[flink-sql-client_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
... 6 more
Caused by: java.lang.UnsupportedOperationException
at
org.apache.flink.connector.jdbc.catalog.AbstractJdbcCatalog.getFunction(AbstractJdbcCatalog.java:261)
~[?:?]
at
org.apache.flink.table.catalog.FunctionCatalog.resolvePreciseFunctionReference(FunctionCatalog.java:570)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.flink.table.catalog.FunctionCatalog.lambda$resolveAmbiguousFunctionReference$2(FunctionCatalog.java:617)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at java.util.Optional.orElseGet(Optional.java:267) ~[?:1.8.0_252]
at
org.apache.flink.table.catalog.FunctionCatalog.resolveAmbiguousFunctionReference(FunctionCatalog.java:617)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.flink.table.catalog.FunctionCatalog.lookupFunction(FunctionCatalog.java:370)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.flink.table.planner.catalog.FunctionCatalogOperatorTable.lookupOperatorOverloads(FunctionCatalogOperatorTable.java:99)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.calcite.sql.util.ChainedSqlOperatorTable.lookupOperatorOverloads(ChainedSqlOperatorTable.java:73)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.calcite.sql.validate.SqlValidatorImpl.makeNullaryCall(SqlValidatorImpl.java:1754)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.calcite.sql.validate.SqlValidatorImpl$Expander.visit(SqlValidatorImpl.java:5987)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.calcite.sql.validate.SqlValidatorImpl$SelectExpander.visit(SqlValidatorImpl.java:6154)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.calcite.sql.validate.SqlValidatorImpl$SelectExpander.visit(SqlValidatorImpl.java:6140)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at org.apache.calcite.sql.SqlIdentifier.accept(SqlIdentifier.java:321)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.calcite.sql.validate.SqlValidatorImpl.expandSelectExpr(SqlValidatorImpl.java:5574)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.calcite.sql.validate.SqlValidatorImpl.expandSelectItem(SqlValidatorImpl.java:452)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.calcite.sql.validate.SqlValidatorImpl.validateSelectList(SqlValidatorImpl.java:4255)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.calcite.sql.validate.SqlValidatorImpl.validateSelect(SqlValidatorImpl.java:3523)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.calcite.sql.validate.SelectNamespace.validateImpl(SelectNamespace.java:60)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.calcite.sql.validate.AbstractNamespace.validate(AbstractNamespace.java:84)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.calcite.sql.validate.SqlValidatorImpl.validateNamespace(SqlValidatorImpl.java:1110)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.calcite.sql.validate.SqlValidatorImpl.validateQuery(SqlValidatorImpl.java:1084)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at org.apache.calcite.sql.SqlSelect.validate(SqlSelect.java:232)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.calcite.sql.validate.SqlValidatorImpl.validateScopedExpression(SqlValidatorImpl.java:1059)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.calcite.sql.validate.SqlValidatorImpl.validate(SqlValidatorImpl.java:766)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.flink.table.planner.calcite.FlinkPlannerImpl.org$apache$flink$table$planner$calcite$FlinkPlannerImpl$$validate(FlinkPlannerImpl.scala:141)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.flink.table.planner.calcite.FlinkPlannerImpl.validate(FlinkPlannerImpl.scala:108)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.flink.table.planner.operations.SqlToOperationConverter.convert(SqlToOperationConverter.java:187)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.flink.table.planner.delegation.ParserImpl.parse(ParserImpl.java:78)
~[flink-table-blink_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.flink.table.client.gateway.local.LocalExecutor$1.lambda$parse$0(LocalExecutor.java:430)
~[flink-sql-client_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.flink.table.client.gateway.local.ExecutionContext.wrapClassLoader(ExecutionContext.java:255)
~[flink-sql-client_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.flink.table.client.gateway.local.LocalExecutor$1.parse(LocalExecutor.java:430)
~[flink-sql-client_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
at
org.apache.flink.table.client.cli.SqlCommandParser.parseBySqlParser(SqlCommandParser.java:98)
~[flink-sql-client_2.11-1.12-SNAPSHOT.jar:1.12-SNAPSHOT]
... 6 more
{code}
The problem is that Calcite will try to check first if there is a built-in
function with that name that allows calls without parenthesis. Therefore it
will query the {{FunctionCatalog}} for that function. The logic in
{{org.apache.flink.table.catalog.FunctionCatalog#lookupFunction}} is such that
it will call {{JdbcCatalog#getFunction}} in the end, which in case of
{{AbstractJdbcCatalog}} throws {{UnsupportedOperationException}}.
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