fix

advisor/index.go

@@ -723,7 +723,7 @@ func (idxAdv *IndexAdvisor) buildIndexWithNoEnv(indexList map[string]map[string]
 // mergeIndex 将索引用到的列去重后合并到一起
 func mergeIndex(idxList map[string]map[string][]*common.Column, column *common.Column) {
 	// 散粒度低于阈值将不会添加索引
-	if common.Config.MinCardinality > column.Cardinality {
+	if common.Config.MinCardinality/100 > column.Cardinality {
 		return
 	}
 

advisor/index_test.go

@@ -357,7 +357,8 @@ func TestRuleUpdatePrimaryKey(t *testing.T) {
 
 func TestIndexAdvise(t *testing.T) {
 	common.Log.Debug("Entering function: %s", common.GetFunctionName())
-	// common.Config.MinCardinality = 1
+	minCardinalityBak := common.Config.MinCardinality
+	common.Config.MinCardinality = 20
 	vEnv, rEnv := env.BuildEnv()
 	defer vEnv.CleanUp()
 
@@ -384,6 +385,7 @@ func TestIndexAdvise(t *testing.T) {
 		}
 	}
 	common.Log.Debug("Exiting function: %s", common.GetFunctionName())
+	common.Config.MinCardinality = minCardinalityBak
 }
 
 func TestIndexAdviseNoEnv(t *testing.T) {