BiteTheDDDDt opened a new issue #7998: URL: https://github.com/apache/incubator-doris/issues/7998
### Search before asking - [X] I had searched in the [issues](https://github.com/apache/incubator-doris/issues?q=is%3Aissue) and found no similar issues. ### Description I tried to use `std::search` to replace custom search implement, have 100%+ faster on build with clang(also have some improve on gcc). ***before:*** ``` MySQL [ssb]> select sum(locate('LO',lo_orderpriority)) from lineorder; +---------------------------------------+ | sum(locate('LO', `lo_orderpriority`)) | +---------------------------------------+ | 360039444 | +---------------------------------------+ 1 row in set (19.040 sec) MySQL [ssb]> select sum(locate('-',lo_orderpriority)) from lineorder; +--------------------------------------+ | sum(locate('-', `lo_orderpriority`)) | +--------------------------------------+ | 1200075804 | +--------------------------------------+ 1 row in set (15.214 sec) MySQL [ssb]> select sum(locate('HIGH',lo_orderpriority)) from lineorder; +-----------------------------------------+ | sum(locate('HIGH', `lo_orderpriority`)) | +-----------------------------------------+ | 359987466 | +-----------------------------------------+ 1 row in set (19.574 sec) ``` ***after:*** ``` MySQL [ssb]> select sum(locate('LO',lo_orderpriority)) from lineorder; +---------------------------------------+ | sum(locate('LO', `lo_orderpriority`)) | +---------------------------------------+ | 360039444 | +---------------------------------------+ 1 row in set (11.004 sec) MySQL [ssb]> select sum(locate('-',lo_orderpriority)) from lineorder; +--------------------------------------+ | sum(locate('-', `lo_orderpriority`)) | +--------------------------------------+ | 1200075804 | +--------------------------------------+ 1 row in set (7.888 sec) MySQL [ssb]> select sum(locate('HIGH',lo_orderpriority)) from lineorder; +-----------------------------------------+ | sum(locate('HIGH', `lo_orderpriority`)) | +-----------------------------------------+ | 359987466 | +-----------------------------------------+ 1 row in set (10.952 sec) ``` ### Solution _No response_ ### Are you willing to submit PR? - [X] Yes I am willing to submit a PR! ### Code of Conduct - [X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct) -- 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
