planner: disable non-prep plan cache by default (#46504)

close #36598
pingcap · Aug 30, 2023 · 61f8825 · 61f8825
1 parent b6d6550
commit 61f8825
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/planner/core/plan_cache.go b/planner/core/plan_cache.go
@@ -44,7 +44,7 @@ import (
 )
 
 var (
-	// PlanCacheKeyTestIssue43667 is for test.
+	// PlanCacheKeyTestIssue43667 is only for test.
 	PlanCacheKeyTestIssue43667 struct{}
 )
 

diff --git a/sessionctx/variable/tidb_vars.go b/sessionctx/variable/tidb_vars.go
@@ -1310,7 +1310,7 @@ const (
 	DefTiDBEnableFastReorg                         = true
 	DefTiDBDDLDiskQuota                            = 100 * 1024 * 1024 * 1024 // 100GB
 	DefExecutorConcurrency                         = 5
-	DefTiDBEnableNonPreparedPlanCache              = true
+	DefTiDBEnableNonPreparedPlanCache              = false
 	DefTiDBEnableNonPreparedPlanCacheForDML        = false
 	DefTiDBNonPreparedPlanCacheSize                = 100
 	DefTiDBPlanCacheMaxPlanSize                    = 2 * size.MB
-Original file line number
+Diff line change
@@ Expand Up / @@ -44,7 +44,7 @@ import ( @@
     )
     var (
-    	// PlanCacheKeyTestIssue43667 is for test.
+    	// PlanCacheKeyTestIssue43667 is only for test.
     	PlanCacheKeyTestIssue43667 struct{}
     )
@@ Expand Down @@