jayzhan211 commented on PR #12864:
URL: https://github.com/apache/datafusion/pull/12864#issuecomment-2437192214
It seems the query is accidentally correct in before this change, because we
don't know the result of the function when we build up Values plan. After this
change, incorrect values ('abcd') is cast to column a instead of the result of
the function.
The ideally solution is to find the result type of the function and check
whether it matches the column type.
btw, I wonder is this query valid in postgres or elsewhere?
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