Ruidong Li created FLINK-7596:
---------------------------------
Summary: Fix bug during Set Operation (Union, Minus ... ) with
Any(GenericRelDataType)
Key: FLINK-7596
URL: https://issues.apache.org/jira/browse/FLINK-7596
Project: Flink
Issue Type: Bug
Components: Table API & SQL
Reporter: Ruidong Li
Assignee: Ruidong Li
If two inputs with Any(GenericRelDataType), when they comes to Set
Operation(Union, minus...), it will cause a `TableException` with info is "Type
is not supported: ANY"
Here is the test case:
`
@Test
def testUnion(): Unit = {
val list = List((1, new NODE), (2, new NODE))
val list2 = List((3, new NODE), (4, new NODE))
val env = StreamExecutionEnvironment.getExecutionEnvironment
val tEnv = TableEnvironment.getTableEnvironment(env)
val s1 = tEnv.fromDataStream(env.fromCollection(list))
val s2 = tEnv.fromDataStream(env.fromCollection(list2))
val result = s1.unionAll(s2).toAppendStream[Row]
result.addSink(new StreamITCase.StringSink[Row])
env.execute()
}
class NODE {
val x = new util.HashMap[String, String]()
}
`
this bug happens because flink did't handle createSqlType(ANY) and Calcite
does't know the differences between `ANY` and `ANY(GenericRelDataType)`, so the
`createSqlType(ANY)` of Calcite will return a BasicSqlType instead
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