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https://issues.apache.org/jira/browse/CALCITE-5486?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17693592#comment-17693592
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Jiajun Xie commented on CALCITE-5486:
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[~libenchao], you are right.
My solution only for where condition.
If we want to achieve other situations,
I need to redesign and make major modifications.
> SubQuery not support HAVING alias in where condition
> ----------------------------------------------------
>
> Key: CALCITE-5486
> URL: https://issues.apache.org/jira/browse/CALCITE-5486
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: Jiajun Xie
> Assignee: Jiajun Xie
> Priority: Major
> Labels: pull-request-available
> Time Spent: 1.5h
> Remaining Estimate: 0h
>
> Spark can allow HAVING alias in condition.
> We also should allow HAVING alias in condition, here is the simple case.
> {code:java}
> sql("select * from emp where sal >\n"
> + " (select avg(sal) as s"
> + " from emp having ^s^ > 0"
> + " )")
> .withConformance(SqlConformanceEnum.LENIENT)
> .fails("Column 'S' not found in any table"); // should be ok, but now is
> fails{code}
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