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Posted to issues-all@impala.apache.org by "Steve Carlin (Jira)" <ji...@apache.org> on 2021/03/30 00:36:00 UTC

[jira] [Resolved] (IMPALA-10593) Skip runtime filter for outer joins when Expr not constant after null substitution

     [ https://issues.apache.org/jira/browse/IMPALA-10593?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steve Carlin resolved IMPALA-10593.
-----------------------------------
    Resolution: Fixed

> Skip runtime filter for outer joins when Expr not constant after null substitution
> ----------------------------------------------------------------------------------
>
>                 Key: IMPALA-10593
>                 URL: https://issues.apache.org/jira/browse/IMPALA-10593
>             Project: IMPALA
>          Issue Type: Bug
>          Components: Frontend
>            Reporter: Steve Carlin
>            Priority: Minor
>
> Currently there is code that asserts that an Expr is not constant after substituting SlotRefs with constant nulls.
> A third party tool needs this restriction to be weakened.  In a case where an Expr is checked and the Expr is not constant even after substituting nulls, the result will be to not generate a runtime filter for that Expr.



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