piotr.findei...@gmail.com has posted comments on this change. ( http://gerrit.cloudera.org:8080/11565 )
Change subject: IMPALA-7659: Simplify expression to collect NULLs count ...................................................................... Patch Set 3: > If you rewrite with a case expression instead of if you get > something thats much faster again. You something like: COUNT(CASE WHEN symbol IS NULL THEN NULL ELSE 1 END) ? -- To view, visit http://gerrit.cloudera.org:8080/11565 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: Ic68f8b4c3756eb1980ce299a602a7d56db1e507a Gerrit-Change-Number: 11565 Gerrit-PatchSet: 3 Gerrit-Owner: piotr.findei...@gmail.com Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com> Gerrit-Reviewer: Tim Armstrong <tarmstr...@cloudera.com> Gerrit-Reviewer: piotr.findei...@gmail.com Gerrit-Comment-Date: Thu, 04 Oct 2018 19:30:47 +0000 Gerrit-HasComments: No
