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 .
---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services
