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https://issues.apache.org/jira/browse/FLINK-7596?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Timo Walther resolved FLINK-7596.
---------------------------------
Resolution: Fixed
Fix Version/s: 1.4.0
Fixed in 1.4.0: 62ebda3f99f0d311676e98d6ae1e48c2322a39cb &
2b82578abec20eb97bc0d641ca19977cc3805c9e
Fixed in 1.3.2: 701be5d53c9a6531089d2bba2b4633513713e5ec &
314ca04b3a06b960ac324484b099fd66ffcb2fbd
> fix bug when Set Operation handles ANY type
> -------------------------------------------
>
> 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
> Fix For: 1.4.0
>
>
> 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:
> {code}
> @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]()
> }
> {code}
> This bug happens because Flink doesn't handle {{createSqlType(ANY)}} and
> Calcite doesn't know the differences between {{ANY}} and
> {{ANY(GenericRelDataType)}}, so the {{createSqlType(ANY)}} of Calcite will
> return a {{BasicSqlType}} instead.
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