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https://issues.apache.org/jira/browse/CALCITE-1200?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julian Hyde resolved CALCITE-1200.
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Resolution: Fixed
Fixed in http://git-wip-us.apache.org/repos/asf/calcite/commit/3599cebb. Thanks
for the PR!
I fixed up a bit, changing getOperator() calls to getKind() for the reasons
stated in CALCITE-1043.
> Handle null equality join condition as IS NOT DISTINCT FROM in
> RelOptUtil.splitJoinCondition
> --------------------------------------------------------------------------------------------
>
> Key: CALCITE-1200
> URL: https://issues.apache.org/jira/browse/CALCITE-1200
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: Venki Korukanti
> Assignee: Julian Hyde
> Fix For: 1.8.0
>
>
> Currently {{RelOptUtil.splitJoinCondition}} can't recognize a join condition
> as equi-join condition if it is given as {{(t1.key = t2.key OR (t1.key IS
> NULL AND t2.key IS NULL))}} which is basically an expanded version of {{IS
> NOT DISTINCT FROM}} function.
> This JIRA is to track changes to {{RelOptUtil.splitJoinCondition}} to handle
> null equality join condition by converting them to {{IS NOT DISTINCT FROM}}
> function.
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