qidaye opened a new issue #6753: URL: https://github.com/apache/incubator-doris/issues/6753
### 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 We have introduced alias function in #6261. Current we only support `FunctionCallExpr` in alias function, support for `cast` is required in some cases. ### Use case In the case of some database access, there are some special functions that are not supported and can be implemented by cast. eg: ```sql -- ALL : for any type CREATE ALIAS FUNCTION decimal(ALL, INT, INT) WITH PARAMETER(col, precision, scale) AS CAST(col AS decimal(precision, scale)); CREATE ALIAS FUNCTION to_string(all, int) WITH PARAMETER(text, length) AS cast(text as varchar(length)); ``` ### Related issues _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: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
