xiedeyantu commented on code in PR #4465:
URL: https://github.com/apache/calcite/pull/4465#discussion_r2208970400
##########
core/src/main/java/org/apache/calcite/rex/RexSimplify.java:
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@@ -645,6 +645,11 @@ private <C extends Comparable<C>> RexNode
simplifyComparison(RexCall e,
}
}
+ RexNode node = simplifyComparisonWithNull(e, unknownAs);
Review Comment:
Would it be better if `simplifyComparisonWithNull` returned a boolean type?
Such as
```
if (simplifyComparisonWithNull(e, unknownAs)) {
return e;
}
```
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