Jim Apple has posted comments on this change. Change subject: IMPALA-3450: LIMITs on plan nodes are reflected in cardinality estimates ......................................................................
Patch Set 5: (2 comments) http://gerrit.cloudera.org:8080/#/c/3127/5/testdata/workloads/functional-planner/queries/PlannerTest/inline-view-limit.test File testdata/workloads/functional-planner/queries/PlannerTest/inline-view-limit.test: Line 616: # IMPALA-3450: limits on select nodes are reflected in cardinality estimates. The test for > Second test in inline-view-limit.test? Nope. Something else causes the cardinality estimate on the SELECT node to be 1, with or without the limit clause. http://gerrit.cloudera.org:8080/#/c/3127/5/testdata/workloads/functional-planner/queries/PlannerTest/union.test File testdata/workloads/functional-planner/queries/PlannerTest/union.test: Line 2664: # IMPALA-3450: limits on union nodes are reflected in cardinality estimates. The test for > Test at L894 in this file? Nope. In that test, the cardinality estimate for the union with limit is 6, while the LIMIT clause says no more than 10. -- To view, visit http://gerrit.cloudera.org:8080/3127 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-MessageType: comment Gerrit-Change-Id: Ic06dcb93bbb2510c0d40151302bd817ef340b825 Gerrit-PatchSet: 5 Gerrit-Project: Impala Gerrit-Branch: cdh5-trunk Gerrit-Owner: Jim Apple <[email protected]> Gerrit-Reviewer: Alex Behm <[email protected]> Gerrit-Reviewer: Jim Apple <[email protected]> Gerrit-HasComments: Yes
