liukun4515 commented on code in PR #3721:
URL: https://github.com/apache/arrow-datafusion/pull/3721#discussion_r988916394
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datafusion/optimizer/src/type_coercion.rs:
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@@ -398,6 +398,20 @@ impl ExprRewriter for TypeCoercionRewriter {
}
}
}
+ Expr::ScalarFunction { fun, args } => match fun {
+ BuiltinScalarFunction::Concat
+ | BuiltinScalarFunction::ConcatWithSeparator => {
+ let new_args = args
Review Comment:
Yes, we can do it in the
https://github.com/apache/arrow-datafusion/issues/3582#issuecomment-1254441358
And this pr can be merged first.
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