mrhhsg opened a new pull request, #20928: URL: https://github.com/apache/doris/pull/20928
## Proposed changes When converting query results into MySQL format, it involves transforming columnar data storage into row-based storage. This process raises the question of choosing between sequential reading and sequential writing. In reality, sequential writing is the better choice for performance optimization. Test with 9M rows contains more than 20 columns, this patch can reduce the conversion time from 20s to 11s. ## 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
