alamb commented on code in PR #5734:
URL: https://github.com/apache/arrow-datafusion/pull/5734#discussion_r1149742705
##########
datafusion/expr/src/expr_schema.rs:
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@@ -68,7 +69,26 @@ impl ExprSchemable for Expr {
Expr::OuterReferenceColumn(ty, _) => Ok(ty.clone()),
Expr::ScalarVariable(ty, _) => Ok(ty.clone()),
Expr::Literal(l) => Ok(l.get_datatype()),
- Expr::Case(case) => case.when_then_expr[0].1.get_type(schema),
+ Expr::Case(case) => {
+ // when #5681 will be fixed, this code can be reverted to:
Review Comment:
I agree it would be best to have this code in Analyzer -- but if we can't
get it in there quickly we can merge this PR as is.
Thank you for the test case @mslapek
Thank you for leaving the link to
https://github.com/apache/arrow-datafusion/issues/5733 in the code
Do you know why the `CREATE TABLE AS SELECT` does not have type coercion (as
an optimizer pass) applied? It seems like that may be an oversight (and maybe
the root cause of this problem)?
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