xzj7019 opened a new pull request, #27577: URL: https://github.com/apache/doris/pull/27577
## Proposed changes Currently doris doesn't support datetime type filter stats estimation, but only for date type. It will cause the filter using datetime type column with the same date and different time computing out a inaccurate selectivity and estimate a wrong row count, such as : ``` where o.book_time >= '2020-03-01 00:00:00.0' and o.book_time <= '2020-03-01 23:59:59.0'; ``` This pr adds the datetime type(only support hh:mm:ss scale) filter estimation and improve the row count estimation for the above case. ## Further comments If this is a relatively large or complex change, kick off the discussion at [d...@doris.apache.org](mailto:d...@doris.apache.org) by explaining why you chose the solution you did and what alternatives you considered, etc... -- 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: commits-unsubscr...@doris.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For additional commands, e-mail: commits-h...@doris.apache.org
