morrySnow commented on code in PR #26899:
URL: https://github.com/apache/doris/pull/26899#discussion_r1396690978
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/rules/rewrite/ExtractAndNormalizeWindowExpression.java:
##########
@@ -44,7 +46,22 @@ public class ExtractAndNormalizeWindowExpression extends
OneRewriteRuleFactory i
@Override
public Rule build() {
return logicalProject().when(project ->
containsWindowExpression(project.getProjects())).then(project -> {
- List<NamedExpression> outputs = project.getProjects();
+ List<NamedExpression> outputs =
+
ExpressionUtils.rewriteDownShortCircuit(project.getProjects(), output -> {
+ if (output instanceof WindowExpression) {
+ // remove literal partition by and order by keys
+ WindowExpression windowExpression =
(WindowExpression) output;
+ return windowExpression.withPartitionKeysOrderKeys(
+
windowExpression.getPartitionKeys().stream()
+ .filter(expression -> !(expression
instanceof Literal))
Review Comment:
use `expression.isConstant()`
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