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https://issues.apache.org/jira/browse/CALCITE-7414?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Silun Dong resolved CALCITE-7414.
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Fix Version/s: 1.42.0
Resolution: Fixed
Fixed in
[https://github.com/apache/calcite/commit/4c041cb95fd84029a5b292fab0d49eaa02c17f97]
Thanks for your review [~jensen]
> Incorrect mapping of CorDef after decorrelating a Join in
> TopDownGeneralDecorrelator
> ------------------------------------------------------------------------------------
>
> Key: CALCITE-7414
> URL: https://issues.apache.org/jira/browse/CALCITE-7414
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.41.0
> Reporter: Silun Dong
> Assignee: Silun Dong
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.42.0
>
>
> After decorrelating a node, we need to determine which output column replaces
> outer variable (i.e. populate the map from {{CorDef}} to output index in new
> node). When decorrelating a Join, we have to take the join type into account
> to decide which side of the Join to use for the replacement (refer to section
> 3.3 in {_}Improving Unnesting of Complex Queries{_}). The current
> implementation omits this logic. The corresponding test case can be found in
> CALCITE-7379.
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