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https://issues.apache.org/jira/browse/CALCITE-2879?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16879195#comment-16879195
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yuqi commented on CALCITE-2879:
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(y), Indeed, this is a duplication of rule JoinPushTransitivePredicatesRule. i
will close this issue later
> Improve filter condition in Join
> --------------------------------
>
> Key: CALCITE-2879
> URL: https://issues.apache.org/jira/browse/CALCITE-2879
> Project: Calcite
> Issue Type: Improvement
> Reporter: yuqi
> Priority: Major
> Labels: pull-request-available
> Time Spent: 50m
> Remaining Estimate: 0h
>
> Currently, filter condition in join have not been optimized very well, let's
> take a simple example
> {code:sql}
> select a.id, b.name from Ta a inner join Tb b on a.id = b.id and a.id < 5;
> {code}
> now, only a.id < 5 can push down, however, as for the sql above,
> we can infer a.id < 5 and b.id < 5 and both of them can push down.
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