alamb commented on code in PR #4200:
URL: https://github.com/apache/arrow-datafusion/pull/4200#discussion_r1022071990
##########
datafusion/optimizer/src/simplify_expressions/expr_simplifier.rs:
##########
@@ -470,6 +470,22 @@ impl<'a, S: SimplifyInfo> ExprRewriter for Simplifier<'a,
S> {
op: Or,
right,
}) if is_false(&right) => *left,
+ // A OR !A ---> true (if A not nullable)
Review Comment:
👍 I suspect we would need to add some logic to
https://github.com/apache/arrow-datafusion/blob/master/datafusion/optimizer/src/type_coercion.rs
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