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https://issues.apache.org/jira/browse/ARROW-11431?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated ARROW-11431:
-----------------------------------
Labels: pull-request-available (was: )
> [Rust] [DataFusion] Add support for the SQL HAVING clause
> ---------------------------------------------------------
>
> Key: ARROW-11431
> URL: https://issues.apache.org/jira/browse/ARROW-11431
> Project: Apache Arrow
> Issue Type: New Feature
> Components: Rust - DataFusion
> Reporter: Daniel Russo
> Assignee: Daniel Russo
> Priority: Minor
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> We do not yet have support for the SQL {{HAVING}} clause. {{HAVING}} is used
> to filter post-aggregation, typically against an aggregated column. For
> example:
> {code}
> SELECT c1, MAX(c2) FROM t GROUP BY c1 HAVING MAX(c2) > 100
> {code}
> {{HAVING}} expressions need not reference aggregates in the {{SELECT}}, for
> example:
> {code}
> SELECT c1, MAX(c2) FROM t GROUP BY c1 HAVING MIN(c2) > 100
> {code}
> {{HAVING}} expressions need not filter on aggregated columns, for example:
> {code}
> SELECT c1, MAX(c2) FROM t GROUP BY c1 HAVING c1 > 100
> {code}
> Lastly, {{HAVING}} expressions need not be used in conjunction with a {{GROUP
> BY}}, for example:
> {code}
> SELECT MAX(c1) FROM t HAVING MAX(c1) > 100
> {code}
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