[Tech Request]: optimize non-pk index query for sysbench (matrixorigi…

…n#20974) [Tech Request]: optimize non-pk index query for sysbench Approved by: @ouyuanning
iamlinjunhong · Dec 27, 2024 · 890bfec · 890bfec
1 parent 3c84f22
commit 890bfec
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/pkg/sql/plan/apply_indices.go b/pkg/sql/plan/apply_indices.go
@@ -401,7 +401,7 @@ func (builder *QueryBuilder) applyIndicesForFiltersRegularIndex(nodeID int32, no
 
 	if catalog.IsFakePkName(node.TableDef.Pkey.PkeyColName) {
 		// for cluster by table, make it less prone to go index
-		if node.Stats.Selectivity > 0.0001 || node.Stats.Outcnt > 1000 {
+		if node.Stats.Selectivity >= InFilterSelectivityLimit/2 || node.Stats.Outcnt >= InFilterCardLimitNonPK {
 			return nodeID
 		}
 	}

diff --git a/pkg/sql/plan/runtime_filter.go b/pkg/sql/plan/runtime_filter.go
@@ -26,7 +26,7 @@ const (
 	InFilterCardLimitNonPK   = 10000
 	InFilterCardLimitPK      = 1000000
 	BloomFilterCardLimit     = 100 * InFilterCardLimitNonPK
-	InFilterSelectivityLimit = 0.2
+	InFilterSelectivityLimit = 0.3
 )
 
 func GetInFilterCardLimit(sid string) int32 {