[ https://issues.apache.org/jira/browse/KUDU-646?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Grant Henke updated KUDU-646: ----------------------------- Target Version/s: (was: 1.5.0) > Check the scan type before applying the selection vector > -------------------------------------------------------- > > Key: KUDU-646 > URL: https://issues.apache.org/jira/browse/KUDU-646 > Project: Kudu > Issue Type: Improvement > Components: perf, tablet > Affects Versions: M5 > Reporter: Andrew Wang > Priority: Trivial > > As pointed out during code review of the MergeIterator, after merging the > selection vector is all true (all rows selected). > This means during a scan, if we are using the MergeIterator, we can skip > checking the resulting SelectionVector. This will save us some CPU. -- This message was sent by Atlassian JIRA (v7.6.3#76005)