Kurt Deschler has posted comments on this change. ( http://gerrit.cloudera.org:8080/17860 )
Change subject: IMPALA-9873: Avoid materilization of columns for filtered out rows in Parquet table. ...................................................................... Patch Set 8: (1 comment) http://gerrit.cloudera.org:8080/#/c/17860/8/be/src/exec/scratch-tuple-batch.h File be/src/exec/scratch-tuple-batch.h: http://gerrit.cloudera.org:8080/#/c/17860/8/be/src/exec/scratch-tuple-batch.h@74 PS8, Line 74: boost::scoped_array<bool> selected_rows; > So I had thought about using std::bitset, vector<bool> and I wouldn't spend too much time on row-level micro optimizations at this point unless we have a CPU profile that is showing a hot spot. -- To view, visit http://gerrit.cloudera.org:8080/17860 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: I46406c913297d5bbbec3ccae62a83bb214ed2c60 Gerrit-Change-Number: 17860 Gerrit-PatchSet: 8 Gerrit-Owner: Amogh Margoor <[email protected]> Gerrit-Reviewer: Amogh Margoor <[email protected]> Gerrit-Reviewer: Impala Public Jenkins <[email protected]> Gerrit-Reviewer: Kurt Deschler <[email protected]> Gerrit-Reviewer: Qifan Chen <[email protected]> Gerrit-Reviewer: Zoltan Borok-Nagy <[email protected]> Gerrit-Comment-Date: Thu, 21 Oct 2021 14:19:00 +0000 Gerrit-HasComments: Yes
