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Posted to issues@calcite.apache.org by "Bohdan Kazydub (JIRA)" <ji...@apache.org> on 2019/07/05 13:26:00 UTC

[jira] [Created] (CALCITE-3174) IS NOT DISTINCT FROM condition pushed from filter to join is not collapsed

Bohdan Kazydub created CALCITE-3174:
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             Summary: IS NOT DISTINCT FROM condition pushed from filter to join is not collapsed
                 Key: CALCITE-3174
                 URL: https://issues.apache.org/jira/browse/CALCITE-3174
             Project: Calcite
          Issue Type: Bug
            Reporter: Bohdan Kazydub


If filter containing {{IS NOT DISTINCT FROM}} expression is pushed to join, this results to new join condition having this expanded {{IS NOT DISTINCT FROM}} expression (and not collapsed one), which can be further modified making impossible to identify the {{IS NOT DISTINCT FROM}} condition.



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