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https://issues.apache.org/jira/browse/FLINK-15321?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16999718#comment-16999718
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xiaojin.wy edited comment on FLINK-15321 at 12/19/19 3:50 AM:
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Ok, I will close it if it's expected.
was (Author: xiaojin.wy):
ok, I will close it if it's expected.
> 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
> Priority: Major
>
> 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'.
> The config is:
> execution:
> planner: blink
> type: batch
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