englefly commented on code in PR #14730:
URL: https://github.com/apache/doris/pull/14730#discussion_r1037109707
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/rules/rewrite/logical/MergeProjects.java:
##########
@@ -92,7 +95,7 @@ public Expression visit(Expression expr, Map<Expression,
Expression> substitutio
Slot ref = ((SlotReference)
expr).withQualifier(Collections.emptyList());
if (substitutionMap.containsKey(ref)) {
Alias res = (Alias) substitutionMap.get(ref);
- return res.child();
+ return new Alias(res.child(), ref.getName());
Review Comment:
fixed
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