Leon-WTF opened a new pull request, #2599: URL: https://github.com/apache/drill/pull/2599
# [DRILL-4232](https://issues.apache.org/jira/browse/DRILL-4232): Support for EXCEPT and INTERSECT set operator ## Description Can have hash set operator and sorted set operator, only implement hash version in this PR. Compute number of left-input duplicates(numLeft) and number of left-input duplicates(numRight) for each same tuple: INTERSECT: if numRight > 0 and numLeft > 0, output one tuple INTERSECT ALL: if numRight > 0 and numLeft > 0, output min(numLeft,numRight) tuples EXCEPT: if numRight = 0 and numLeft > 0, output one tuple EXCEPT ALL: if numRight = 0 and numLeft > 0, output numLeft - numRight tuples ## Documentation TODO ## Testing TODO -- 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. To unsubscribe, e-mail: dev-unsubscr...@drill.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
