[doris] branch master updated: [improve](Nereids): avoid duplicated stats derive. (#13293)

[jakevin]

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jakevin pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/doris.git


The following commit(s) were added to refs/heads/master by this push:
     new 4248c6f37c [improve](Nereids): avoid duplicated stats derive. (#13293)
4248c6f37c is described below

commit 4248c6f37cb4d3e4f5fcfab29c539aac77849f8c
Author: jakevin <jakevin...@gmail.com>
AuthorDate: Thu Oct 13 13:49:21 2022 +0800

    [improve](Nereids): avoid duplicated stats derive. (#13293)
---
 .../java/org/apache/doris/nereids/jobs/cascades/DeriveStatsJob.java  | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git 
a/fe/fe-core/src/main/java/org/apache/doris/nereids/jobs/cascades/DeriveStatsJob.java
 
b/fe/fe-core/src/main/java/org/apache/doris/nereids/jobs/cascades/DeriveStatsJob.java
index 8797327311..618382438a 100644
--- 
a/fe/fe-core/src/main/java/org/apache/doris/nereids/jobs/cascades/DeriveStatsJob.java
+++ 
b/fe/fe-core/src/main/java/org/apache/doris/nereids/jobs/cascades/DeriveStatsJob.java
@@ -60,8 +60,9 @@ public class DeriveStatsJob extends Job {
             deriveChildren = true;
             pushJob(new DeriveStatsJob(this));
             for (Group child : groupExpression.children()) {
-                if (!child.getLogicalExpressions().isEmpty()) {
-                    pushJob(new 
DeriveStatsJob(child.getLogicalExpressions().get(0), context));
+                GroupExpression childGroupExpr = 
child.getLogicalExpressions().get(0);
+                if (!child.getLogicalExpressions().isEmpty() && 
!childGroupExpr.isStatDerived()) {
+                    pushJob(new DeriveStatsJob(childGroupExpr, context));
                 }
             }
         } else {


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