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https://issues.apache.org/jira/browse/CALCITE-1129?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jesus Camacho Rodriguez resolved CALCITE-1129.
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Resolution: Fixed
Fix Version/s: 1.7.0
Fixed in http://git-wip-us.apache.org/repos/asf/calcite/commit/50c4b06. Thanks
[~vkalavri]!
> Extend JoinUnionTransposeRule to match Union instead of LogicalUnion
> --------------------------------------------------------------------
>
> Key: CALCITE-1129
> URL: https://issues.apache.org/jira/browse/CALCITE-1129
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: Vasia Kalavri
> Assignee: Julian Hyde
> Priority: Minor
> Fix For: 1.7.0
>
>
> The {{JoinUnionTransposeRule}} is fired if one of the operands is a
> {{Union}}, but inside the {{onMatch()}} method, the code checks if one of the
> operands is an instance of {{LogicalUnion}}. External implementations would
> benefit from changing the rule to match {{Union}} instead.
> The dev mailing list discussion can be found
> [here|https://mail-archives.apache.org/mod_mbox/calcite-dev/201603.mbox/%3CCAJZ2dcWt3zp5KMCRWPjmDoeWyFKi3AM_NEoQb-9ZD5sRFNSz7Q%40mail.gmail.com%3E].
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