diff --git a/cmd/soar/soar.go b/cmd/soar/soar.go
index cb7172c5267cb3295b95f7373da182c125de2507..5332df5a30ebaeb034356dee5f41ea468ae07fc0 100644
--- a/cmd/soar/soar.go
+++ b/cmd/soar/soar.go
@@ -192,9 +192,7 @@ func main() {
 				os.Exit(1)
 			}
 			// tidb parser 语法检查给出的建议 ERR.000
-			if common.Config.TestDSN.Disable {
-				mysqlSuggest["ERR.000"] = advisor.RuleMySQLError("ERR.000", syntaxErr)
-			}
+			mysqlSuggest["ERR.000"] = advisor.RuleMySQLError("ERR.000", syntaxErr)
 		}
 		// 如果只想检查语法直接跳过后面的步骤
 		if common.Config.OnlySyntaxCheck {
@@ -255,6 +253,9 @@ func main() {
 							}
 						default:
 							// vEnv.VEnvBuild 阶段给出的 ERROR 是 ERR.001
+							if _, ok := mysqlSuggest["ERR.000"]; ok {
+								delete(mysqlSuggest, "ERR.000")
+							}
 							mysqlSuggest["ERR.001"] = advisor.RuleMySQLError("ERR.001", vEnv.Error)
 							common.Log.Error("BuildVirtualEnv DDL Execute Error : %v", vEnv.Error)
 						}
@@ -277,7 +278,7 @@ func main() {
 				explainInfo, err := rEnv.Explain(q.Query,
 					database.ExplainType[common.Config.ExplainType],
 					database.ExplainFormatType[common.Config.ExplainFormat])
-				if err != nil && strings.HasPrefix(vEnv.Database, "optimizer_") {
+				if err != nil {
 					// 线上环境执行失败才到测试环境 EXPLAIN，比如在用户提供建表语句及查询语句的场景
 					common.Log.Warn("rEnv.Explain Warn: %v", err)
 					explainInfo, err = vEnv.Explain(q.Query,
diff --git a/env/env.go b/env/env.go
index 9b3f6ea0910b441df8a4b121d1a3ba7f0ed8e2b2..cbffde9d86e31fcd45ac71321b35913e6f2fd31f 100644
--- a/env/env.go
+++ b/env/env.go
@@ -122,6 +122,7 @@ func (ve VirtualEnv) RealDB(hash string) string {
 	if _, ok := ve.hash2Db[hash]; ok {
 		return ve.hash2Db[hash]
 	}
+	common.Log.Error("RealDB, missing hash map: %s", hash)
 	return hash
 }
 
@@ -355,7 +356,9 @@ func (ve VirtualEnv) createDatabase(rEnv database.Connector, dbName string) erro
 	}
 
 	// optimizer_YYMMDDHHmmss_xxxx
-	dbHash := fmt.Sprintf("optimizer_%s_%s", time.Now().Format("060102150405"), uniuri.New())
+	dbHash := fmt.Sprintf("optimizer_%s_%s", // Total 39 bytes
+		time.Now().Format("060102150405"), // 12 Bytes 20180102030405
+		strings.ToLower(uniuri.New()))     // 16 Bytes random string
 	common.Log.Debug("createDatabase, mapping `%s` :`%s`-->`%s`", dbName, dbName, dbHash)
 	ddl, err := rEnv.ShowCreateDatabase(dbName)
 	if err != nil {