Quanlong Huang has posted comments on this change. ( http://gerrit.cloudera.org:8080/19682 )
Change subject: IMPALA-12006: Improve cardinality estimation for joins involving multiple conjuncts ...................................................................... Patch Set 6: Code-Review+1 (3 comments) http://gerrit.cloudera.org:8080/#/c/19682/3//COMMIT_MSG Commit Message: http://gerrit.cloudera.org:8080/#/c/19682/3//COMMIT_MSG@30 PS3, Line 30: selectivities: sel(C1) * sel(C2) .. sel(Cn) and then scales it by > Yes, there are tradeoffs in both the query option approach and the hints ap Ack http://gerrit.cloudera.org:8080/#/c/19682/6/fe/src/main/java/org/apache/impala/planner/JoinNode.java File fe/src/main/java/org/apache/impala/planner/JoinNode.java: http://gerrit.cloudera.org:8080/#/c/19682/6/fe/src/main/java/org/apache/impala/planner/JoinNode.java@432 PS6, Line 432: cumulative_sel nit: "cumulativeSel" http://gerrit.cloudera.org:8080/#/c/19682/6/fe/src/main/java/org/apache/impala/planner/JoinNode.java@487 PS6, Line 487: cumulative_sel nit: "cumulativeSel" -- To view, visit http://gerrit.cloudera.org:8080/19682 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: I845d778a58404af834f7501fc8157a5a4b4bcc35 Gerrit-Change-Number: 19682 Gerrit-PatchSet: 6 Gerrit-Owner: Aman Sinha <[email protected]> Gerrit-Reviewer: Aman Sinha <[email protected]> Gerrit-Reviewer: Csaba Ringhofer <[email protected]> Gerrit-Reviewer: Impala Public Jenkins <[email protected]> Gerrit-Reviewer: Kurt Deschler <[email protected]> Gerrit-Reviewer: Quanlong Huang <[email protected]> Gerrit-Comment-Date: Mon, 10 Apr 2023 12:58:36 +0000 Gerrit-HasComments: Yes
