englefly commented on code in PR #11812:
URL: https://github.com/apache/doris/pull/11812#discussion_r954038455
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/rules/expression/rewrite/ExpressionRuleExecutor.java:
##########
@@ -57,6 +58,16 @@ public Expression rewrite(Expression root) {
return result;
}
+ /**
+ * Given an expression, returns a rewritten expression.
+ */
+ public Optional<Expression> rewrite(Optional<Expression> root) {
+ if (root.isPresent()) {
+ return Optional.of(rewrite(root.get()));
+ }
+ return Optional.empty();
Review Comment:
done
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