Joe McDonnell has posted comments on this change. ( http://gerrit.cloudera.org:8080/19829 )
Change subject: IMPALA-12111: Speed up DATE to STRING conversion ...................................................................... Patch Set 4: Code-Review+1 In some basic tests that use a big table with a single date column, this reduces RowMaterializationTime significantly: Date before: RowMaterializationRate: 2.28 M/sec Date after: RowMaterializationRate: 13.56 M/sec It also helps on timestamp (using a similar table with a single timestamp column): Timestamp before: RowMaterializationRate: 3.15 M/sec Timestamp after: RowMaterializationRate: 8.55 M/sec This makes sense to me. -- To view, visit http://gerrit.cloudera.org:8080/19829 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: I9a233ae92b1461fc5c47d8345667e36c2632f4c4 Gerrit-Change-Number: 19829 Gerrit-PatchSet: 4 Gerrit-Owner: Csaba Ringhofer <[email protected]> Gerrit-Reviewer: Csaba Ringhofer <[email protected]> Gerrit-Reviewer: Daniel Becker <[email protected]> Gerrit-Reviewer: Gabor Kaszab <[email protected]> Gerrit-Reviewer: Impala Public Jenkins <[email protected]> Gerrit-Reviewer: Joe McDonnell <[email protected]> Gerrit-Comment-Date: Fri, 05 May 2023 00:47:29 +0000 Gerrit-HasComments: No
