Quanlong Huang has posted comments on this change. ( http://gerrit.cloudera.org:8080/15403 )
Change subject: IMPALA-6505: Min-Max predicate push down in ORC scanner ...................................................................... Patch Set 6: > It will also be great if we can add a test to show push-down predicates in > the ORC scan node in a query plan. We have such a case in orc-stats.test ==== ---- QUERY set explain_level=2; explain select id, bool_col from functional_orc_def.alltypessmall where int_col < 0; ---- RESULTS: VERIFY_IS_SUBSET ' orc statistics predicates: int_col < CAST(0 AS INT)' ==== But I think we do need to improve observability on the final predicates that are pushed down. E.g. "x = 1" is currently transformed into "x <= 1" and "x >= 1" but it's not shown in the plan. -- To view, visit http://gerrit.cloudera.org:8080/15403 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: I136622413db21e0941d238ab6aeea901a6464845 Gerrit-Change-Number: 15403 Gerrit-PatchSet: 6 Gerrit-Owner: Norbert Luksa <[email protected]> Gerrit-Reviewer: Anonymous Coward (520) Gerrit-Reviewer: Csaba Ringhofer <[email protected]> Gerrit-Reviewer: Impala Public Jenkins <[email protected]> Gerrit-Reviewer: Norbert Luksa <[email protected]> Gerrit-Reviewer: Qifan Chen <[email protected]> Gerrit-Reviewer: Quanlong Huang <[email protected]> Gerrit-Reviewer: Zoltan Borok-Nagy <[email protected]> Gerrit-Comment-Date: Thu, 26 Aug 2021 04:04:53 +0000 Gerrit-HasComments: No
