rongrong commented on PR #4130: URL: https://github.com/apache/calcite/pull/4130#issuecomment-3002325408
> This actually breaks the following SQL: > > ``` > > SELECT > > CASE > > WHEN ID IS NOT NULL > > THEN foo > > ELSE CAST(ID AS VARCHAR) > > END AS ID > > FROM testTable; > > ``` > > because it would rewrite the THEN clause to `THEN CAST(foo AS VARCHAR) AS foo` which is no longer valid SQL. Not all places accept identifiers accept alias. This sql will fail. -- 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]
