Bharath Vissapragada has posted comments on this change. ( http://gerrit.cloudera.org:8080/11565 )
Change subject: IMPALA-7659: Populate NULL count while computing column stats ...................................................................... Patch Set 6: (1 comment) Any reviews on this one? Planning to get this one in before others keep updating these tests. http://gerrit.cloudera.org:8080/#/c/11565/6/fe/src/main/java/org/apache/impala/analysis/ComputeStatsStmt.java File fe/src/main/java/org/apache/impala/analysis/ComputeStatsStmt.java: http://gerrit.cloudera.org:8080/#/c/11565/6/fe/src/main/java/org/apache/impala/analysis/ComputeStatsStmt.java@251 PS6, Line 251: " IS NULL THEN 1 ELSE NULL END)"); > I thought you were doing it in a separate change? https://gerrit.cloudera.o Was discussing this with Paul offline. We thought that adjusting the NDV before writing the stats to HMS is problematic since it might affect other SQL engines (like Presto/Hive etc). We don't know if they expect the null count to be adjusted already. -- To view, visit http://gerrit.cloudera.org:8080/11565 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: Ic68f8b4c3756eb1980ce299a602a7d56db1e507a Gerrit-Change-Number: 11565 Gerrit-PatchSet: 6 Gerrit-Owner: Anonymous Coward <[email protected]> Gerrit-Reviewer: Anonymous Coward <[email protected]> Gerrit-Reviewer: Bharath Vissapragada <[email protected]> Gerrit-Reviewer: Impala Public Jenkins <[email protected]> Gerrit-Reviewer: Paul Rogers <[email protected]> Gerrit-Reviewer: Tim Armstrong <[email protected]> Gerrit-Reviewer: Vuk Ercegovac <[email protected]> Gerrit-Comment-Date: Wed, 05 Dec 2018 16:32:29 +0000 Gerrit-HasComments: Yes
