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https://issues.apache.org/jira/browse/CALCITE-3192?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16883918#comment-16883918
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Jess Balint commented on CALCITE-3192:
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this seems to work but one new test failure arises which I haven't checked yet:
https://github.com/jbalint/calcite/blob/e8b154db56bf4681f0affb3aa049abb72832678a/core/src/main/java/org/apache/calcite/rex/RexSimplify.java#L517
> Simplify OR incorrectly weaks condition
> ---------------------------------------
>
> Key: CALCITE-3192
> URL: https://issues.apache.org/jira/browse/CALCITE-3192
> Project: Calcite
> Issue Type: Bug
> Reporter: Jess Balint
> Priority: Major
> Fix For: 1.21.0
>
>
> RexSimplify is transforming
> * {{OR(AND(>(999, $8), =($2, 'Franklin')), <(100, $8))}}
> * to {{OR(=($2, 'Franklin'), <(100, $8))}}
> the predicates are accumulated in {{simplifyOrTerms()}} but not discarded
> when iterating the second time
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