Riza Suminto has posted comments on this change. ( http://gerrit.cloudera.org:8080/20040 )
Change subject: IMPALA-12200: Cap stats NDV from SetOperationStmt.createMetadata ...................................................................... Patch Set 2: (1 comment) http://gerrit.cloudera.org:8080/#/c/20040/2/testdata/workloads/functional-planner/queries/PlannerTest/tpcds/tpcds-q75.test File testdata/workloads/functional-planner/queries/PlannerTest/tpcds/tpcds-q75.test: http://gerrit.cloudera.org:8080/#/c/20040/2/testdata/workloads/functional-planner/queries/PlannerTest/tpcds/tpcds-q75.test@1781 PS2, Line 1781: cardinality=525 Here and similar places in tpcds-q75, cardinality increase from 175 to 525 because of increased conjunct selectivity from 0.0017006802721088435 to 0.00510204081632653. The conjunct selectivity comes from having predicate that relies on NDV to compute the selectivity (lower NDV results in higher selectivity). -- To view, visit http://gerrit.cloudera.org:8080/20040 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: Ic0bb2eff5005fdfb11adf31499214c63dd552c05 Gerrit-Change-Number: 20040 Gerrit-PatchSet: 2 Gerrit-Owner: Riza Suminto <[email protected]> Gerrit-Reviewer: Impala Public Jenkins <[email protected]> Gerrit-Reviewer: Kurt Deschler <[email protected]> Gerrit-Reviewer: Quanlong Huang <[email protected]> Gerrit-Reviewer: Riza Suminto <[email protected]> Gerrit-Reviewer: Wenzhe Zhou <[email protected]> Gerrit-Comment-Date: Tue, 13 Jun 2023 01:55:20 +0000 Gerrit-HasComments: Yes
