diff --git a/tests/army/community/query/query_basic.json b/tests/army/community/query/query_basic.json
index e1865445ea..4190fbdd72 100644
--- a/tests/army/community/query/query_basic.json
+++ b/tests/army/community/query/query_basic.json
@@ -7,7 +7,8 @@
     "password": "taosdata",
     "connection_pool_size": 8,
     "num_of_records_per_req": 4000,
-    "thread_count": 2,
+    "prepared_rand": 1000,
+    "thread_count": 3,
     "create_table_thread_count": 1,
     "confirm_parameter_prompt": "no",
     "databases": [
diff --git a/tests/army/frame/caseBase.py b/tests/army/frame/caseBase.py
index 32852934f8..ca5539f75b 100644
--- a/tests/army/frame/caseBase.py
+++ b/tests/army/frame/caseBase.py
@@ -170,13 +170,13 @@ class TBase:
         # order by asc limit 1 with first
         sql = f"select last({col}) from {self.stb}"
         expect = tdSql.getFirstValue(sql)
-        sql = f"select {col} from {self.stb} order by {col} desc limit 1"
+        sql = f"select {col} from {self.stb} order by _c0 desc limit 1"
         tdSql.checkFirstValue(sql, expect)
 
         # order by desc limit 1 with last
         sql = f"select first({col}) from {self.stb}"
         expect = tdSql.getFirstValue(sql)
-        sql = f"select {col} from {self.stb} order by {col} asc limit 1"
+        sql = f"select {col} from {self.stb} order by _c0 asc limit 1"
         tdSql.checkFirstValue(sql, expect)
 
 #