tartarus created FLINK-26460:
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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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