Xuebin Su has posted comments on this change. ( http://gerrit.cloudera.org:8080/23012 )
Change subject: IMPALA-9874: Skip IO for late materialized columns ...................................................................... Patch Set 12: (1 comment) > Patch Set 11: > > (1 comment) Thanks for reviewing! http://gerrit.cloudera.org:8080/#/c/23012/9/testdata/workloads/functional-query/queries/QueryTest/parquet-late-materialization.test File testdata/workloads/functional-query/queries/QueryTest/parquet-late-materialization.test: http://gerrit.cloudera.org:8080/#/c/23012/9/testdata/workloads/functional-query/queries/QueryTest/parquet-late-materialization.test@13 PS9, Line 13: # The table contains 3 row groups. Only the non-filter columns of 1 row group : # will be read from the storage and the other 2 will be skipped because of late : # materialization. > NumRowGroups is increased only if the scanner started reading non-filtered Thanks! My understanding is that NumRowGroups is increased for each row group even if the row group is skipped based on the statistics or the dictionaries. -- To view, visit http://gerrit.cloudera.org:8080/23012 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: I4a052b028220517503e634e3f916d1fbd60eb65d Gerrit-Change-Number: 23012 Gerrit-PatchSet: 12 Gerrit-Owner: Xuebin Su <[email protected]> Gerrit-Reviewer: Csaba Ringhofer <[email protected]> Gerrit-Reviewer: Impala Public Jenkins <[email protected]> Gerrit-Reviewer: Xuebin Su <[email protected]> Gerrit-Comment-Date: Mon, 25 Aug 2025 07:41:07 +0000 Gerrit-HasComments: Yes
