BiteTheDDDDt commented on code in PR #20562:
URL: https://github.com/apache/doris/pull/20562#discussion_r1222383111
##########
fe/fe-core/src/main/java/org/apache/doris/analysis/FunctionCallExpr.java:
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@@ -1575,6 +1575,16 @@ && collectChildReturnTypes()[0].isDecimalV3()) {
}
}
+ // if the input arg is not nullable, so the function of
is_null/is_not_null
+ // result is very certain and there is no need to look at data in
column.
Review Comment:
use ExprRewriteRule rewrite `is_null_pred(not_nullable_column)` to `false`
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