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https://issues.apache.org/jira/browse/CALCITE-7817?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated CALCITE-7817:
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Labels: pull-request-available (was: )
> Enumerable merge ANTI join drops left rows with NULL keys
> ---------------------------------------------------------
>
> Key: CALCITE-7817
> URL: https://issues.apache.org/jira/browse/CALCITE-7817
> Project: Calcite
> Issue Type: Bug
> Reporter: Bruno Volpato
> Priority: Major
> Labels: pull-request-available
>
> With ascending, NULLS LAST inputs, an equality ANTI join of left `[1, 2,
> NULL]` and right `[1]` returns `[2]`. The `NULL` key does not match under
> strict equality, so the result should be `[2, NULL]`.
> The enumerable merge join stops processing left rows when it reaches a NULL
> join key. The ANTI path should preserve those rows across all merge-join
> advancement paths.
> Fix and regression tests: https://github.com/apache/calcite/pull/5242
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