Alex Behm has uploaded a new change for review. http://gerrit.cloudera.org:8080/4707
Change subject: IMPALA-4289: Mark agg slots of NDV() functions as non-nullable. ...................................................................... IMPALA-4289: Mark agg slots of NDV() functions as non-nullable. This change might give a minor speedup to COMPUTE STATS and COMPUTE INCREMENTAL STATS. In any case, marking the slots non-nullable seems strictly better than leaving them nullable. Testing: I ran our local testdata/compute-table-stats.sh and it succeeded. Change-Id: I1c05b8dfb797b2a42ee1a7bf14ad56bb83d2b1c5 --- M fe/src/main/java/org/apache/impala/analysis/AggregateInfoBase.java 1 file changed, 6 insertions(+), 3 deletions(-) git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/07/4707/1 -- To view, visit http://gerrit.cloudera.org:8080/4707 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-MessageType: newchange Gerrit-Change-Id: I1c05b8dfb797b2a42ee1a7bf14ad56bb83d2b1c5 Gerrit-PatchSet: 1 Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-Owner: Alex Behm <[email protected]>
