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Posted to dev@flink.apache.org by "tartarus (Jira)" <ji...@apache.org> on 2022/03/03 08:32:00 UTC

[jira] [Created] (FLINK-26460) Fix Unsupported type when convertTypeToSpec: MAP

tartarus created FLINK-26460:
--------------------------------

             Summary: Fix Unsupported type when convertTypeToSpec: MAP
                 Key: FLINK-26460
                 URL: https://issues.apache.org/jira/browse/FLINK-26460
             Project: Flink
          Issue Type: Bug
          Components: Table SQL / Planner
    Affects Versions: 1.13.1, 1.15.0
            Reporter: tartarus


{code:java}
CREATE TABLE zm_test (
  `a` BIGINT,
  `m` MAP<STRING,BIGINT>
);
{code}

if we insert into zm_test use

{code:java}
INSERT INTO appendSink(`a`) SELECT `a` FROM MyTable;
{code}

then will throw Exception

{code:java}
Unsupported type when convertTypeToSpec: MAP
{code}

we must use

{code:java}
INSERT INTO appendSink SELECT `a`, cast(null AS MAP<STRING,BIGINT>) FROM MyTable;
{code}



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