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Posted to commits@calcite.apache.org by GitBox <gi...@apache.org> on 2019/12/12 07:16:12 UTC

[GitHub] [calcite] leonardBang commented on issue #1491: [CALCITE-3368] Some problems simplifying ‘expression IS NULL’

leonardBang commented on issue #1491: [CALCITE-3368] Some problems simplifying ‘expression IS NULL’ 
URL: https://github.com/apache/calcite/pull/1491#issuecomment-564881844
 
 
   @chunweilei I’ll close this PR because this's should be an improvement rather a bug after long discussion, and the improvement can not rush simply in this PR . 

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