Yifan Zhang has posted comments on this change. ( http://gerrit.cloudera.org:8080/18434 )
Change subject: KUDU-1644: Simplify InList predicate values based on rowset PK bounds ...................................................................... Patch Set 3: (1 comment) http://gerrit.cloudera.org:8080/#/c/18434/2//COMMIT_MSG Commit Message: http://gerrit.cloudera.org:8080/#/c/18434/2//COMMIT_MSG@11 PS2, Line 11: Also, the DRS bounds info can be used to skip rows : effectively when we have a predicate on a non-prefix of the primary key and the : leading column(s) have cardinality=1 (as described in KUDU-1291). > I see, so it's more that for rowsets with leading column cardinality = 1, t It can be used to range predicates too. But this optimization may not improve the scan performance for range predicates because it can neither simplify the predicate evaluation nor skip rows. -- To view, visit http://gerrit.cloudera.org:8080/18434 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: kudu Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: Ia9c2aa958f19a0b62e40a2ef5eb5365f91cbab80 Gerrit-Change-Number: 18434 Gerrit-PatchSet: 3 Gerrit-Owner: Yifan Zhang <[email protected]> Gerrit-Reviewer: Andrew Wong <[email protected]> Gerrit-Reviewer: Kudu Jenkins (120) Gerrit-Reviewer: Yifan Zhang <[email protected]> Gerrit-Comment-Date: Sat, 07 May 2022 05:57:25 +0000 Gerrit-HasComments: Yes
