kasakrisz opened a new pull request, #3411: URL: https://github.com/apache/hive/pull/3411
### What changes were proposed in this pull request? Disable generating auto column stats collecting pipeline in the execution plan in case of Update/Delete/Merge statements. ### Why are the changes needed? * Column stats are marked stale after executing Update/Delete/Merge statements because it can not be generated from the changed rows in case of delete operation so adding the pipeline into insert branches of a merge does not makes sense. * For Update/Delete statements only the way we checking whether adding the pipeline is refactored. ### Does this PR introduce _any_ user-facing change? No. But output of explain merge statements may changes. ### How was this patch tested? ``` mvn test -Dtest.output.overwrite -DskipSparkTests -Dtest=TestMiniLlapLocalCliDriver -Dqfile=sqlmerge.q,sqlmerge_stats.q -pl itests/qtest -Pitests ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
