[
https://issues.apache.org/jira/browse/FLINK-17049?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Timo Walther reassigned FLINK-17049:
------------------------------------
Assignee: Timo Walther
> Support implicit conversions of rows
> ------------------------------------
>
> Key: FLINK-17049
> URL: https://issues.apache.org/jira/browse/FLINK-17049
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / API
> Reporter: Dawid Wysakowicz
> Assignee: Timo Walther
> Priority: Major
>
> {code}
> @Test
> public void testCastRowTableFunction() throws Exception {
> final List<Row> sourceData = Arrays.asList(
> Row.of(Row.of(1))
> );
> final List<Row> sinkData = Arrays.asList(
> Row.of(Row.of(new BigDecimal("1")))
> );
> TestCollectionTableFactory.reset();
> TestCollectionTableFactory.initData(sourceData);
> tEnv().sqlUpdate("CREATE TABLE SourceTable(s Row(a INT)) WITH
> ('connector' = 'COLLECTION')");
> tEnv().sqlUpdate("CREATE TABLE SinkTable(s ROW(a DECIMAL(10,
> 2))) WITH ('connector' = 'COLLECTION')");
> tEnv().createTemporarySystemFunction("func",
> RowCastScalarFunction.class);
> tEnv().sqlUpdate("INSERT INTO SinkTable SELECT func(s) FROM
> SourceTable");
> tEnv().execute("Test Job");
> assertThat(TestCollectionTableFactory.getResult(),
> equalTo(sinkData));
> }
> public static class RowCastScalarFunction extends ScalarFunction {
> public @DataTypeHint("ROW<f0 INT>") Row eval(
> @DataTypeHint("ROW<f0 DECIMAL(10, 2)>") Row row) {
> return Row.of(1);
> }
> }
> {code}
> fails with:
> {code}
> java.lang.AssertionError: use createStructType() instead
> at
> org.apache.calcite.sql.type.SqlTypeFactoryImpl.assertBasic(SqlTypeFactoryImpl.java:225)
> at
> org.apache.calcite.sql.type.SqlTypeFactoryImpl.createSqlType(SqlTypeFactoryImpl.java:48)
> at
> org.apache.flink.table.planner.calcite.FlinkTypeFactory.createSqlType(FlinkTypeFactory.scala:275)
> at
> org.apache.calcite.sql.SqlBasicTypeNameSpec.deriveType(SqlBasicTypeNameSpec.java:205)
> at
> org.apache.calcite.sql.SqlDataTypeSpec.deriveType(SqlDataTypeSpec.java:222)
> at
> org.apache.calcite.sql.SqlDataTypeSpec.deriveType(SqlDataTypeSpec.java:209)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl$DeriveTypeVisitor.visit(SqlValidatorImpl.java:5960)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl$DeriveTypeVisitor.visit(SqlValidatorImpl.java:5845)
> at
> org.apache.calcite.sql.SqlDataTypeSpec.accept(SqlDataTypeSpec.java:186)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.deriveTypeImpl(SqlValidatorImpl.java:1800)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.deriveType(SqlValidatorImpl.java:1785)
> at org.apache.calcite.sql.SqlNode.validateExpr(SqlNode.java:260)
> at org.apache.calcite.sql.SqlOperator.validateCall(SqlOperator.java:423)
> at org.apache.calcite.sql.SqlFunction.validateCall(SqlFunction.java:199)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateCall(SqlValidatorImpl.java:5552)
> at org.apache.calcite.sql.SqlCall.validate(SqlCall.java:116)
> at org.apache.calcite.sql.SqlNode.validateExpr(SqlNode.java:259)
> at org.apache.calcite.sql.SqlOperator.validateCall(SqlOperator.java:423)
> at org.apache.calcite.sql.SqlFunction.validateCall(SqlFunction.java:199)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateCall(SqlValidatorImpl.java:5552)
> at org.apache.calcite.sql.SqlCall.validate(SqlCall.java:116)
> at org.apache.calcite.sql.SqlNode.validateExpr(SqlNode.java:259)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateExpr(SqlValidatorImpl.java:4306)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateSelectList(SqlValidatorImpl.java:4284)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateSelect(SqlValidatorImpl.java:3523)
> at
> org.apache.calcite.sql.validate.SelectNamespace.validateImpl(SelectNamespace.java:60)
> at
> org.apache.calcite.sql.validate.AbstractNamespace.validate(AbstractNamespace.java:84)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateNamespace(SqlValidatorImpl.java:1110)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateQuery(SqlValidatorImpl.java:1084)
> at org.apache.calcite.sql.SqlSelect.validate(SqlSelect.java:232)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.validateScopedExpression(SqlValidatorImpl.java:1059)
> at
> org.apache.calcite.sql.validate.SqlValidatorImpl.validate(SqlValidatorImpl.java:766)
> at
> org.apache.flink.table.planner.calcite.FlinkPlannerImpl.org$apache$flink$table$planner$calcite$FlinkPlannerImpl$$validate(FlinkPlannerImpl.scala:128)
> at
> org.apache.flink.table.planner.calcite.FlinkPlannerImpl.validate(FlinkPlannerImpl.scala:107)
> at
> org.apache.flink.table.planner.operations.SqlToOperationConverter.convert(SqlToOperationConverter.java:134)
> at
> org.apache.flink.table.planner.operations.SqlToOperationConverter.convertSqlInsert(SqlToOperationConverter.java:351)
> at
> org.apache.flink.table.planner.operations.SqlToOperationConverter.convert(SqlToOperationConverter.java:149)
> at
> org.apache.flink.table.planner.delegation.ParserImpl.parse(ParserImpl.java:66)
> at
> org.apache.flink.table.api.internal.TableEnvironmentImpl.sqlUpdate(TableEnvironmentImpl.java:596)
> at
> org.apache.flink.table.planner.runtime.stream.sql.FunctionITCase.testCastRowTableFunction(FunctionITCase.java:632)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
> at
> org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> at
> org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
> at
> org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> at
> org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
> at
> org.junit.rules.ExpectedException$ExpectedExceptionStatement.evaluate(ExpectedException.java:239)
> at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:48)
> at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
> at org.junit.rules.RunRules.evaluate(RunRules.java:20)
> at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
> at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
> at
> org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
> at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
> at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
> at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
> at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
> at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:48)
> at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:48)
> at org.junit.rules.RunRules.evaluate(RunRules.java:20)
> at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
> at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
> at
> com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
> at
> com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
> at
> com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:230)
> at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:58)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at
> com.intellij.rt.execution.application.AppMainV2.main(AppMainV2.java:131)
> {code}
> I think the problem is in
> {{org.apache.flink.table.planner.functions.inference.TypeInferenceOperandChecker#castTo}}
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