soubhik-c opened a new pull request, #3572: URL: https://github.com/apache/hive/pull/3572
related Jira issue: https://issues.apache.org/jira/browse/HIVE-26514 - Added FreqItems that will capture individual items' frequency count when 'hive.stats.freq.items.enable' is true in hiveconf. Analyze table compute statistics for columns will then gather and update ItemSketches which will then be used during query optimizer selectivity estimates. - Design document can be found in below url: https://docs.google.com/document/d/1pOn7kp-7gLsNY___w01fF2NeFEQuDF9jM-4ZyDZUF2k/edit?usp=sharing - Team presentation can be found below: https://docs.google.com/presentation/d/1XWDwsS2maPu0aipK2s3TXmJuXTmOrawJ9MR6UzV3Hd0/edit#slide=id.g149521dc348_0_73 - related demo to the work https://cloudera.zoom.us/rec/share/2t0bEEvoaGg7ajVCS8s0pwpUEvjwrDEkc_x_QnIzp6IXGA2dwX1-Jie29lCdvqNB.njoCxnrl9QaV41e- Passcode: 1R+SadvX ### Does this PR introduce _any_ user-facing change? Optionally Yes ### How was this patch tested? QTests and hive devbox is used to test. -- 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]
