morrySnow commented on code in PR #25089:
URL: https://github.com/apache/doris/pull/25089#discussion_r1349608267
##########
fe/fe-core/src/main/java/org/apache/doris/planner/PlanFragment.java:
##########
@@ -326,6 +326,8 @@ public String getExplainString(TExplainLevel explainLevel) {
}
str.append("\n");
str.append(" PARTITION: " +
dataPartition.getExplainString(explainLevel) + "\n");
+ str.append(" HAS_COLO_PLAN_NODE: " + hasColocatePlanNode + "\n");
Review Comment:
```suggestion
str.append(" HAS_COLOCATE_PLAN_NODE: " + hasColocatePlanNode +
"\n");
```
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/glue/translator/PhysicalPlanTranslator.java:
##########
@@ -1739,6 +1745,13 @@ public PlanFragment visitPhysicalSetOperation(
setPlanRoot(setOperationFragment, setOperationNode, setOperation);
}
+ // in pipeline engine, we use parallel scan by default, but it broke
the rule of data distribution
+ // we need turn of parallel scan to ensure to get correct result.
+ // TODO: nereids forbid all parallel scan under PhysicalSetOperation
temporary
+ if
(findOlapScanNodesByPassExchangeAndJoinNode(setOperationFragment.getPlanRoot()))
{
+ setOperationFragment.setHasColocatePlanNode(true);
+ }
Review Comment:
check set operation output physical properties, if it is any, do not set
this flag
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