morningman opened a new issue #3946: URL: https://github.com/apache/incubator-doris/issues/3946
**Motivation** We find some timestamp functions are slow and very CPU cost. Like `from_unixtime`. And stack shows most of time are spend to `find_cctz_time_zone` and RE2 regex matches. This is because `from_unixtime()` does not have a `prepare` phase. So for each row, it has to find the timezone by the timezone string. ---------------------------------------------------------------- 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. For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
