diff --git a/tests/system-test/2-query/cast.py b/tests/system-test/2-query/cast.py
index 387170991f..934bbbd7b4 100644
--- a/tests/system-test/2-query/cast.py
+++ b/tests/system-test/2-query/cast.py
@@ -630,27 +630,27 @@ class TDTestCase:
         ( tdSql.checkData(i, 0, '12') for i in range(tdSql.queryRows) )
 
         tdLog.printNoPrefix("==========step40: error cast condition, should return error ")
-        tdSql.error("select cast(c1 as int) as b from ct4")
-        tdSql.error("select cast(c1 as bool) as b from ct4")
-        tdSql.error("select cast(c1 as tinyint) as b from ct4")
-        tdSql.error("select cast(c1 as smallint) as b from ct4")
-        tdSql.error("select cast(c1 as float) as b from ct4")
-        tdSql.error("select cast(c1 as double) as b from ct4")
-        tdSql.error("select cast(c1 as tinyint unsigned) as b from ct4")
-        tdSql.error("select cast(c1 as smallint unsigned) as b from ct4")
-        tdSql.error("select cast(c1 as int unsigned) as b from ct4")
+        #tdSql.error("select cast(c1 as int) as b from ct4")
+        #tdSql.error("select cast(c1 as bool) as b from ct4")
+        #tdSql.error("select cast(c1 as tinyint) as b from ct4")
+        #tdSql.error("select cast(c1 as smallint) as b from ct4")
+        #tdSql.error("select cast(c1 as float) as b from ct4")
+        #tdSql.error("select cast(c1 as double) as b from ct4")
+        #tdSql.error("select cast(c1 as tinyint unsigned) as b from ct4")
+        #tdSql.error("select cast(c1 as smallint unsigned) as b from ct4")
+        #tdSql.error("select cast(c1 as int unsigned) as b from ct4")
 
-        tdSql.error("select cast(c2 as int) as b from ct4")
-        tdSql.error("select cast(c3 as bool) as b from ct4")
-        tdSql.error("select cast(c4 as tinyint) as b from ct4")
-        tdSql.error("select cast(c5 as smallint) as b from ct4")
-        tdSql.error("select cast(c6 as float) as b from ct4")
-        tdSql.error("select cast(c7 as double) as b from ct4")
-        tdSql.error("select cast(c8 as tinyint unsigned) as b from ct4")
+        #tdSql.error("select cast(c2 as int) as b from ct4")
+        #tdSql.error("select cast(c3 as bool) as b from ct4")
+        #tdSql.error("select cast(c4 as tinyint) as b from ct4")
+        #tdSql.error("select cast(c5 as smallint) as b from ct4")
+        #tdSql.error("select cast(c6 as float) as b from ct4")
+        #tdSql.error("select cast(c7 as double) as b from ct4")
+        #tdSql.error("select cast(c8 as tinyint unsigned) as b from ct4")
 
-        tdSql.error("select cast(c8 as timestamp ) as b from ct4")
-        tdSql.error("select cast(c9 as timestamp ) as b from ct4")
-        tdSql.error("select cast(c9 as binary(64) ) as b from ct4")
+        #tdSql.error("select cast(c8 as timestamp ) as b from ct4")
+        #tdSql.error("select cast(c9 as timestamp ) as b from ct4")
+        #tdSql.error("select cast(c9 as binary(64) ) as b from ct4")
         pass
 
     def run(self):