[jira] [Created] (FLINK-27965) Query schema is not correct for insert overwrite clause when source and target table are same

["Jane Chan (Jira)" <ji...@apache.org>]

Jane Chan created FLINK-27965:
---------------------------------

             Summary: Query schema is not correct for insert overwrite clause when source and target table are same
                 Key: FLINK-27965
                 URL: https://issues.apache.org/jira/browse/FLINK-27965
             Project: Flink
          Issue Type: Bug
          Components: Table SQL / Planner
    Affects Versions: 1.15.0
            Reporter: Jane Chan


h3. How to reproduce

Add the following test under TableEnvironmentITCase
{code:java}
@Test
def testExplainInsertOverwrite(): Unit = {
  val sinkPath = tempFolder.newFolder().toString
  tEnv.executeSql(
    s"""
       |create table MySink (
       |  first string,
       |  part string
       |) partitioned by (part)
       |with (
       |  'connector' = 'filesystem',
       |  'path' = '$sinkPath',
       |  'format' = 'testcsv'
       |)
     """.stripMargin)

    tEnv.executeSql(
      "explain plan for " +
        "insert overwrite MySink partition (part = '123') " +
        "select first from MySink where part = '123'")
}
{code}
h3. Stacktrace
{code:java}
org.apache.flink.table.api.ValidationException: Column types of query result and sink for 'default_catalog.default_database.MySink' do not match.
Cause: Different number of columns.Query schema: [first: STRING, EXPR$1: STRING NOT NULL, EXPR$2: STRING NOT NULL]
Sink schema:  [first: STRING, part: STRING]    at org.apache.flink.table.planner.connectors.DynamicSinkUtils.createSchemaMismatchException(DynamicSinkUtils.java:453)
    at org.apache.flink.table.planner.connectors.DynamicSinkUtils.validateSchemaAndApplyImplicitCast(DynamicSinkUtils.java:256)
    at org.apache.flink.table.planner.connectors.DynamicSinkUtils.convertSinkToRel(DynamicSinkUtils.java:208)
    at org.apache.flink.table.planner.connectors.DynamicSinkUtils.convertSinkToRel(DynamicSinkUtils.java:170)
    at org.apache.flink.table.planner.delegation.PlannerBase.$anonfun$translateToRel$1(PlannerBase.scala:258)
    at scala.Option.map(Option.scala:146)
    at org.apache.flink.table.planner.delegation.PlannerBase.translateToRel(PlannerBase.scala:228)
    at org.apache.flink.table.planner.delegation.PlannerBase.$anonfun$getExplainGraphs$2(PlannerBase.scala:508)
    at scala.collection.TraversableLike.$anonfun$map$1(TraversableLike.scala:233)
    at scala.collection.Iterator.foreach(Iterator.scala:937)
    at scala.collection.Iterator.foreach$(Iterator.scala:937)
    at scala.collection.AbstractIterator.foreach(Iterator.scala:1425)
    at scala.collection.IterableLike.foreach(IterableLike.scala:70)
    at scala.collection.IterableLike.foreach$(IterableLike.scala:69)
    at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
    at scala.collection.TraversableLike.map(TraversableLike.scala:233)
    at scala.collection.TraversableLike.map$(TraversableLike.scala:226)
    at scala.collection.AbstractTraversable.map(Traversable.scala:104)
    at org.apache.flink.table.planner.delegation.PlannerBase.getExplainGraphs(PlannerBase.scala:487)
    at org.apache.flink.table.planner.delegation.StreamPlanner.explain(StreamPlanner.scala:93)
    at org.apache.flink.table.planner.delegation.StreamPlanner.explain(StreamPlanner.scala:50)
    at org.apache.flink.table.api.internal.TableEnvironmentImpl.explainInternal(TableEnvironmentImpl.java:664)
    at org.apache.flink.table.api.internal.TableEnvironmentImpl.executeInternal(TableEnvironmentImpl.java:1298)
    at org.apache.flink.table.api.internal.TableEnvironmentImpl.executeSql(TableEnvironmentImpl.java:701)
    at org.apache.flink.table.api.TableEnvironmentITCase.testExplainInsertOverwrite(TableEnvironmentITCase.scala:179)
    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:59)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
    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.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
    at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:54)
    at org.apache.flink.util.TestNameProvider$1.evaluate(TestNameProvider.java:45) {code}



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