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https://issues.apache.org/jira/browse/SPARK-52102?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated SPARK-52102:
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Labels: pull-request-available (was: )
> Normalize correlated aggregate function names in HAVING condition
> -----------------------------------------------------------------
>
> Key: SPARK-52102
> URL: https://issues.apache.org/jira/browse/SPARK-52102
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 4.1.0
> Reporter: Mihailo Aleksic
> Priority: Major
> Labels: pull-request-available
>
> In the following query we would have `min(outer(t2.t2a))` as a name for
> `min(t2a)` expression.
> {code:java}
> SELECT t1a
> FROM t1
> WHERE t1a IN (SELECT t2a
> FROM t2
> WHERE EXISTS (SELECT min(t2a)
> FROM t3))
> {code}
> This is a problem in compatibility between single-pass resolver and
> fixed-point analyzer because names in single-pass are generated after we
> finish resolution of aggregate expression `min(t2a)` (bottom-up manner) and
> at that point we have `OuterReference` wrapped around aggregate expression
> (name looks like `outer(min(t2a))`).
> I propose that we fix it by normalizing `Alias` names for correlated
> aggregate functions in HAVING condition.
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