Amogh Margoor 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 7: (1 comment) http://gerrit.cloudera.org:8080/#/c/17860/3/be/src/exec/parquet/hdfs-parquet-scanner.cc File be/src/exec/parquet/hdfs-parquet-scanner.cc: http://gerrit.cloudera.org:8080/#/c/17860/3/be/src/exec/parquet/hdfs-parquet-scanner.cc@253 PS3, Line 253: conjuncts.reserve(scan_node_->conjuncts().size() + : scan_node_->filter_exprs().size()); : conjuncts.insert(std::end(conjuncts), std::begin(scan_node_->conjuncts()), > Oh thanks for this info - didn't know. Will take a look at this and revert I tested this for Min/Max filters at row level and this code handles it as filter_exprs() will contain ScalarExprs on the required slotId. We can use that slotId to figure out the column that needs to be read for filtering. -- 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: 7 Gerrit-Owner: Amogh Margoor <amarg...@gmail.com> Gerrit-Reviewer: Amogh Margoor <amarg...@gmail.com> Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com> Gerrit-Reviewer: Kurt Deschler <kdesc...@cloudera.com> Gerrit-Reviewer: Qifan Chen <qc...@cloudera.com> Gerrit-Reviewer: Zoltan Borok-Nagy <borokna...@cloudera.com> Gerrit-Comment-Date: Tue, 12 Oct 2021 23:52:05 +0000 Gerrit-HasComments: Yes
