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Posted to issues@calcite.apache.org by "Zoltan Haindrich (JIRA)" <ji...@apache.org> on 2018/07/05 12:22:00 UTC

[jira] [Created] (CALCITE-2401) Improve RelMdPredicates performance

Zoltan Haindrich created CALCITE-2401:
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             Summary: Improve RelMdPredicates performance
                 Key: CALCITE-2401
                 URL: https://issues.apache.org/jira/browse/CALCITE-2401
             Project: Calcite
          Issue Type: Bug
            Reporter: Zoltan Haindrich


In CALCITE-2384 a simplify feature was disabled - to prevent performance degradation of RelMdPredicates
I think that the algorithm which tries out all the combination of the variables could be probably improved to while it's doing the same - it doesn't run RexSimplify that many times.

for more details see my comment in the other ticket [here|https://issues.apache.org/jira/browse/CALCITE-2384?focusedCommentId=16530021&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16530021]



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