(doris) branch branch-2.1 updated: [improvement](statistics)Use defaultSessionVariable instead of clone a new one. (#34672) (#35531)

[lijibing]

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lijibing pushed a commit to branch branch-2.1
in repository https://gitbox.apache.org/repos/asf/doris.git


The following commit(s) were added to refs/heads/branch-2.1 by this push:
     new 69da39b43de [improvement](statistics)Use defaultSessionVariable 
instead of clone a new one. (#34672) (#35531)
69da39b43de is described below

commit 69da39b43deabcf7917cae5cff87ff7e1e4a090c
Author: Jibing-Li <64681310+jibing...@users.noreply.github.com>
AuthorDate: Tue May 28 17:19:38 2024 +0800

    [improvement](statistics)Use defaultSessionVariable instead of clone a new 
one. (#34672) (#35531)
    
    backport https://github.com/apache/doris/pull/34672
    
    <!--Describe your changes.-->
    
    ## Further comments
    
    If this is a relatively large or complex change, kick off the discussion
    at [d...@doris.apache.org](mailto:d...@doris.apache.org) by explaining why
    you chose the solution you did and what alternatives you considered,
    etc...
---
 .../src/main/java/org/apache/doris/statistics/util/StatisticsUtil.java  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git 
a/fe/fe-core/src/main/java/org/apache/doris/statistics/util/StatisticsUtil.java 
b/fe/fe-core/src/main/java/org/apache/doris/statistics/util/StatisticsUtil.java
index 374d6f7d985..35037bb7e27 100644
--- 
a/fe/fe-core/src/main/java/org/apache/doris/statistics/util/StatisticsUtil.java
+++ 
b/fe/fe-core/src/main/java/org/apache/doris/statistics/util/StatisticsUtil.java
@@ -755,7 +755,7 @@ public class StatisticsUtil {
     }
 
     protected static SessionVariable findConfigFromGlobalSessionVar(String 
varName) throws Exception {
-        SessionVariable sessionVariable =  VariableMgr.newSessionVariable();
+        SessionVariable sessionVariable =  
VariableMgr.getDefaultSessionVariable();
         VariableExpr variableExpr = new VariableExpr(varName, SetType.GLOBAL);
         VariableMgr.getValue(sessionVariable, variableExpr);
         return sessionVariable;


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