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Posted to issues@flink.apache.org by "xiaojin.wy (Jira)" <ji...@apache.org> on 2019/12/19 03:37:00 UTC
[jira] [Created] (FLINK-15321) The result of sql(SELECT concat('a',
cast(null as varchar), 'c');) is NULL;
xiaojin.wy created FLINK-15321:
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Summary: The result of sql(SELECT concat('a', cast(null as varchar), 'c');) is NULL;
Key: FLINK-15321
URL: https://issues.apache.org/jira/browse/FLINK-15321
Project: Flink
Issue Type: Bug
Components: Table SQL / Client
Affects Versions: 1.10.0
Reporter: xiaojin.wy
The sql is :
SELECT concat('a', cast(null as varchar), 'c');
The result of the sql is NULL after you execute it in a sqlClient environment;But actually the result should be 'ac'.
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