hsyuan edited a comment on issue #1469: [CALCITE-3367] Add AntiJoinRule to 
convert project-filter-join-aggreg…
URL: https://github.com/apache/calcite/pull/1469#issuecomment-534820968
 
 
   Julian, the rule you are talking about is a rule that transforms a SEMI/ANTI 
join into a join on top of aggregate, which is indeed needed if we want to do 
join reordering (in case inner rel is larger). However I don't think we have 
that rule.

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