diff --git a/tests/system-test/2-query/csum.py b/tests/system-test/2-query/csum.py
index 5c2de5ea144e6be76273c7f7414b12125e096938..aacde5234b001593334d9c8e43f19691df8d2d55 100644
--- a/tests/system-test/2-query/csum.py
+++ b/tests/system-test/2-query/csum.py
@@ -124,6 +124,8 @@ class TDTestCase:
             tdSql.query(f"select {col} from {table_expr} {re.sub('limit [0-9]*|offset [0-9]*','',condition)}")
             offset_val = condition.split("offset")[1].split(" ")[1] if "offset" in condition else 0
             pre_result = np.array(tdSql.queryResult)[np.array(tdSql.queryResult) != None]
+            if (platform.system().lower() == 'windows' and pre_result.dtype == 'int32'):
+                pre_result = np.array(pre_result, dtype = 'int64')
             pre_csum = np.cumsum(pre_result)[offset_val:]
             tdSql.query(self.csum_query_form(
                 col=col, alias=alias, table_expr=table_expr, condition=condition
diff --git a/tests/system-test/fulltest.bat b/tests/system-test/fulltest.bat
index fcb2b1af5e9755baa0c36279a25b7fa3a26d109c..8a11ad42d4348a6709e2d835b2d967a10c45e41d 100644
--- a/tests/system-test/fulltest.bat
+++ b/tests/system-test/fulltest.bat
@@ -79,7 +79,7 @@ python3 .\test.py -f 2-query\query_cols_tags_and_or.py
 
 python3 .\test.py -f 2-query\avg.py
 python3 .\test.py -f 2-query\elapsed.py
-@REM python3 .\test.py -f 2-query\csum.py
+python3 .\test.py -f 2-query\csum.py
 python3 .\test.py -f 2-query\mavg.py
 python3 .\test.py -f 2-query\diff.py
 python3 .\test.py -f 2-query\sample.py