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yiguolei 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 26b0cefabc1 branch-2.1[fix](nereids) fix bug in 
StatsCalculator.disableJoinReorderIfStatsInvalid when rowCount is not aviable 
#53834 (#54426)
26b0cefabc1 is described below

commit 26b0cefabc1675d5be502957277996fcfa709975
Author: minghong <[email protected]>
AuthorDate: Thu Aug 14 09:47:51 2025 +0800

    branch-2.1[fix](nereids) fix bug in 
StatsCalculator.disableJoinReorderIfStatsInvalid when rowCount is not aviable 
#53834 (#54426)
    
    ### What problem does this PR solve?
    Pick #53834
    Issue Number: close #xxx
    
    Related PR: #xxx
---
 .../org/apache/doris/nereids/stats/StatsCalculator.java    | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git 
a/fe/fe-core/src/main/java/org/apache/doris/nereids/stats/StatsCalculator.java 
b/fe/fe-core/src/main/java/org/apache/doris/nereids/stats/StatsCalculator.java
index 0a1ae85adfe..c0110a88ef7 100644
--- 
a/fe/fe-core/src/main/java/org/apache/doris/nereids/stats/StatsCalculator.java
+++ 
b/fe/fe-core/src/main/java/org/apache/doris/nereids/stats/StatsCalculator.java
@@ -133,6 +133,7 @@ import 
org.apache.doris.nereids.trees.plans.visitor.DefaultPlanVisitor;
 import org.apache.doris.nereids.types.DataType;
 import org.apache.doris.nereids.util.PlanUtils;
 import org.apache.doris.qe.ConnectContext;
+import org.apache.doris.qe.SessionVariable;
 import org.apache.doris.statistics.AnalysisManager;
 import org.apache.doris.statistics.ColumnStatistic;
 import org.apache.doris.statistics.ColumnStatisticBuilder;
@@ -362,8 +363,14 @@ public class StatsCalculator extends 
DefaultPlanVisitor<Statistics, Void> {
             double rowCount = calculator.getTableRowCount(scan);
             // row count not available
             if (rowCount == -1) {
-                LOG.info("disable join reorder since row count not available: "
-                        + scan.getTable().getNameWithFullQualifiers());
+                try {
+                    ConnectContext.get().getSessionVariable()
+                            .setVarOnce(SessionVariable.DISABLE_JOIN_REORDER, 
"true");
+                    LOG.info("disable join reorder since row count not 
available: "
+                            + scan.getTable().getNameWithFullQualifiers());
+                } catch (Exception e) {
+                    LOG.info("disableNereidsJoinReorderOnce failed");
+                }
                 return Optional.of("table[" + scan.getTable().getName() + "] 
row count is invalid");
             }
             if (scan instanceof OlapScan) {
@@ -371,7 +378,8 @@ public class StatsCalculator extends 
DefaultPlanVisitor<Statistics, Void> {
                 Optional<String> reason = 
calculator.checkNdvValidation((OlapScan) scan, rowCount);
                 if (reason.isPresent()) {
                     try {
-                        
ConnectContext.get().getSessionVariable().disableNereidsJoinReorderOnce();
+                        ConnectContext.get().getSessionVariable()
+                                
.setVarOnce(SessionVariable.DISABLE_JOIN_REORDER, "true");
                         LOG.info("disable join reorder since col stats 
invalid: "
                                 + reason.get());
                     } catch (Exception e) {


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