LiBinfeng-01 opened a new pull request, #21077: URL: https://github.com/apache/doris/pull/21077
## Proposed changes Problem: when using nereids planner, some constant folding does not work. like: explain select case 'a' when 1 then 'a' when 'a' then 'b' else 'other' end as col212; which will add cast to 'a' to double, but Cast is not treated as constant, so this folding can not be done Solve: Treat Cast(constant as Literal) as constant, and add equal to of Cast with other Literal ## 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
