diff --git a/dbm-services/mysql/db-simulation/app/syntax/spider_create_table_rule.go b/dbm-services/mysql/db-simulation/app/syntax/spider_create_table_rule.go
index 4c3698cd5c..3eba48dd4a 100644
--- a/dbm-services/mysql/db-simulation/app/syntax/spider_create_table_rule.go
+++ b/dbm-services/mysql/db-simulation/app/syntax/spider_create_table_rule.go
@@ -142,6 +142,7 @@ func (c CreateTableResult) findTablesIndex() (hasPk bool, uks []KeyDef, keys []K
 		switch {
 		case key.PrimaryKey:
 			hasPk = true
+			uks = append(uks, key)
 		case key.UniqueKey:
 			uks = append(uks, key)
 		default: