morrySnow commented on code in PR #46627:
URL: https://github.com/apache/doris/pull/46627#discussion_r1908249587
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/processor/post/ProjectAggregateExpressionsForCse.java:
##########
@@ -102,8 +103,16 @@ public Plan
visitPhysicalHashAggregate(PhysicalHashAggregate<? extends Plan> agg
}
if (aggregate.child() instanceof PhysicalProject) {
+ List<NamedExpression> newProjections = Lists.newArrayList();
PhysicalProject<? extends Plan> project = (PhysicalProject<?
extends Plan>) aggregate.child();
- List<NamedExpression> newProjections =
Lists.newArrayList(project.getProjects());
+ Set<Slot> newInputSlots = aggOutputReplaced.stream()
+ .flatMap(expr -> expr.getInputSlots().stream())
+ .collect(Collectors.toSet());
+ for (NamedExpression expr : project.getProjects()) {
+ if (!(expr instanceof SlotReference) ||
newInputSlots.contains(expr)) {
Review Comment:
why need `!(expr instanceof SlotReference)`?
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/glue/translator/PhysicalPlanTranslator.java:
##########
@@ -957,7 +957,13 @@ public PlanFragment visitPhysicalHashAggregate(
// 1. generate slot reference for each group expression
List<SlotReference> groupSlots =
collectGroupBySlots(groupByExpressions, outputExpressions);
ArrayList<Expr> execGroupingExpressions = groupByExpressions.stream()
- .map(e -> ExpressionTranslator.translate(e, context))
+ .map(e -> {
+ Expr result = ExpressionTranslator.translate(e, context);
+ if (result == null) {
+ throw new RuntimeException("translate " + e + "
failed");
+ }
+ return result;
Review Comment:
could we get more info about translate failed and print them in log?
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