diff --git a/src/connector/python/linux/python2/setup.py b/src/connector/python/linux/python2/setup.py
index ff2d90fcb3dff5965572452672a7491dd4aa44d1..3f065e03485bb0436d7b0356c2508d5913273eb5 100644
--- a/src/connector/python/linux/python2/setup.py
+++ b/src/connector/python/linux/python2/setup.py
@@ -5,7 +5,7 @@ with open("README.md", "r") as fh:
 
 setuptools.setup(
     name="taos",
-    version="2.0.8",
+    version="2.0.9",
     author="Taosdata Inc.",
     author_email="support@taosdata.com",
     description="TDengine python client package",
diff --git a/src/connector/python/linux/python2/taos/cinterface.py b/src/connector/python/linux/python2/taos/cinterface.py
index 4367947341edad7b0a9bdbcaec69a7de9801e267..3d0ecd290156b71e2d738fe7d3693763e0047338 100644
--- a/src/connector/python/linux/python2/taos/cinterface.py
+++ b/src/connector/python/linux/python2/taos/cinterface.py
@@ -21,11 +21,17 @@ def _crow_timestamp_to_python(data, num_of_rows, nbytes=None, micro=False):
         _timestamp_converter = _convert_microsecond_to_datetime
 
     if num_of_rows > 0:
-        return list(map(_timestamp_converter, ctypes.cast(
-            data, ctypes.POINTER(ctypes.c_int64))[:abs(num_of_rows)]))
+        return [
+            None if ele == FieldType.C_BIGINT_NULL else _timestamp_converter(ele) for ele in ctypes.cast(
+                data, ctypes.POINTER(
+                    ctypes.c_int64))[
+                :abs(num_of_rows)]]
     else:
-        return list(map(_timestamp_converter, ctypes.cast(
-            data, ctypes.POINTER(ctypes.c_int64))[:abs(num_of_rows)]))
+        return [
+            None if ele == FieldType.C_BIGINT_NULL else _timestamp_converter(ele) for ele in ctypes.cast(
+                data, ctypes.POINTER(
+                    ctypes.c_int64))[
+                :abs(num_of_rows)]]
 
 
 def _crow_bool_to_python(data, num_of_rows, nbytes=None, micro=False):
diff --git a/src/connector/python/linux/python3/setup.py b/src/connector/python/linux/python3/setup.py
index 296e79b973fde7c86493565940d63f64e7c6fca3..0bd7d51b6a3699acc6c923de2533cd85393f6ae3 100644
--- a/src/connector/python/linux/python3/setup.py
+++ b/src/connector/python/linux/python3/setup.py
@@ -5,7 +5,7 @@ with open("README.md", "r") as fh:
 
 setuptools.setup(
     name="taos",
-    version="2.0.7",
+    version="2.0.9",
     author="Taosdata Inc.",
     author_email="support@taosdata.com",
     description="TDengine python client package",
diff --git a/src/connector/python/linux/python3/taos/cinterface.py b/src/connector/python/linux/python3/taos/cinterface.py
index 4367947341edad7b0a9bdbcaec69a7de9801e267..3d0ecd290156b71e2d738fe7d3693763e0047338 100644
--- a/src/connector/python/linux/python3/taos/cinterface.py
+++ b/src/connector/python/linux/python3/taos/cinterface.py
@@ -21,11 +21,17 @@ def _crow_timestamp_to_python(data, num_of_rows, nbytes=None, micro=False):
         _timestamp_converter = _convert_microsecond_to_datetime
 
     if num_of_rows > 0:
-        return list(map(_timestamp_converter, ctypes.cast(
-            data, ctypes.POINTER(ctypes.c_int64))[:abs(num_of_rows)]))
+        return [
+            None if ele == FieldType.C_BIGINT_NULL else _timestamp_converter(ele) for ele in ctypes.cast(
+                data, ctypes.POINTER(
+                    ctypes.c_int64))[
+                :abs(num_of_rows)]]
     else:
-        return list(map(_timestamp_converter, ctypes.cast(
-            data, ctypes.POINTER(ctypes.c_int64))[:abs(num_of_rows)]))
+        return [
+            None if ele == FieldType.C_BIGINT_NULL else _timestamp_converter(ele) for ele in ctypes.cast(
+                data, ctypes.POINTER(
+                    ctypes.c_int64))[
+                :abs(num_of_rows)]]
 
 
 def _crow_bool_to_python(data, num_of_rows, nbytes=None, micro=False):
diff --git a/src/connector/python/osx/python3/setup.py b/src/connector/python/osx/python3/setup.py
index 9bce1a976febcec457c2b3f8ade0bc6d546307c4..4c865676c9145846e61ee789cb503b84ad424bf1 100644
--- a/src/connector/python/osx/python3/setup.py
+++ b/src/connector/python/osx/python3/setup.py
@@ -5,7 +5,7 @@ with open("README.md", "r") as fh:
 
 setuptools.setup(
     name="taos",
-    version="2.0.7",
+    version="2.0.9",
     author="Taosdata Inc.",
     author_email="support@taosdata.com",
     description="TDengine python client package",
diff --git a/src/connector/python/osx/python3/taos/cinterface.py b/src/connector/python/osx/python3/taos/cinterface.py
index dca9bd42e8733616f34654542ba8c2c3ea3ece9d..720fbef6f5111c2ec85394498ec862c85aafbc99 100644
--- a/src/connector/python/osx/python3/taos/cinterface.py
+++ b/src/connector/python/osx/python3/taos/cinterface.py
@@ -21,11 +21,17 @@ def _crow_timestamp_to_python(data, num_of_rows, nbytes=None, micro=False):
         _timestamp_converter = _convert_microsecond_to_datetime
 
     if num_of_rows > 0:
-        return list(map(_timestamp_converter, ctypes.cast(
-            data, ctypes.POINTER(ctypes.c_int64))[:abs(num_of_rows)]))
+        return [
+            None if ele == FieldType.C_BIGINT_NULL else _timestamp_converter(ele) for ele in ctypes.cast(
+                data, ctypes.POINTER(
+                    ctypes.c_int64))[
+                :abs(num_of_rows)]]
     else:
-        return list(map(_timestamp_converter, ctypes.cast(
-            data, ctypes.POINTER(ctypes.c_int64))[:abs(num_of_rows)]))
+        return [
+            None if ele == FieldType.C_BIGINT_NULL else _timestamp_converter(ele) for ele in ctypes.cast(
+                data, ctypes.POINTER(
+                    ctypes.c_int64))[
+                :abs(num_of_rows)]]
 
 
 def _crow_bool_to_python(data, num_of_rows, nbytes=None, micro=False):
diff --git a/src/connector/python/windows/python2/setup.py b/src/connector/python/windows/python2/setup.py
index 47d374fe67673172596824f68ed495f68941bb51..24d75f937cdb2a61cd2330138c0575e4ccbe2875 100644
--- a/src/connector/python/windows/python2/setup.py
+++ b/src/connector/python/windows/python2/setup.py
@@ -5,7 +5,7 @@ with open("README.md", "r") as fh:
 
 setuptools.setup(
     name="taos",
-    version="2.0.7",
+    version="2.0.9",
     author="Taosdata Inc.",
     author_email="support@taosdata.com",
     description="TDengine python client package",
diff --git a/src/connector/python/windows/python2/taos/cinterface.py b/src/connector/python/windows/python2/taos/cinterface.py
index ec72474df93a4d13aa13256611044c5bc140f2d3..65cb183f26978dc83553b3e88a5c6599ccc1dd48 100644
--- a/src/connector/python/windows/python2/taos/cinterface.py
+++ b/src/connector/python/windows/python2/taos/cinterface.py
@@ -21,11 +21,17 @@ def _crow_timestamp_to_python(data, num_of_rows, nbytes=None, micro=False):
         _timestamp_converter = _convert_microsecond_to_datetime
 
     if num_of_rows > 0:
-        return list(map(_timestamp_converter, ctypes.cast(
-            data, ctypes.POINTER(ctypes.c_int64))[:abs(num_of_rows)]))
+        return [
+            None if ele == FieldType.C_BIGINT_NULL else _timestamp_converter(ele) for ele in ctypes.cast(
+                data, ctypes.POINTER(
+                    ctypes.c_int64))[
+                :abs(num_of_rows)]]
     else:
-        return list(map(_timestamp_converter, ctypes.cast(
-            data, ctypes.POINTER(ctypes.c_int64))[:abs(num_of_rows)]))
+        return [
+            None if ele == FieldType.C_BIGINT_NULL else _timestamp_converter(ele) for ele in ctypes.cast(
+                data, ctypes.POINTER(
+                    ctypes.c_int64))[
+                :abs(num_of_rows)]]
 
 
 def _crow_bool_to_python(data, num_of_rows, nbytes=None, micro=False):
diff --git a/src/connector/python/windows/python3/setup.py b/src/connector/python/windows/python3/setup.py
index cdcec62a218e72adbda949c0fd666b5ec4abc340..2659c493aad8c3059095f0d4c98c61b69ed834f2 100644
--- a/src/connector/python/windows/python3/setup.py
+++ b/src/connector/python/windows/python3/setup.py
@@ -5,7 +5,7 @@ with open("README.md", "r") as fh:
 
 setuptools.setup(
     name="taos",
-    version="2.0.7",
+    version="2.0.9",
     author="Taosdata Inc.",
     author_email="support@taosdata.com",
     description="TDengine python client package",
diff --git a/src/connector/python/windows/python3/taos/cinterface.py b/src/connector/python/windows/python3/taos/cinterface.py
index ec72474df93a4d13aa13256611044c5bc140f2d3..65cb183f26978dc83553b3e88a5c6599ccc1dd48 100644
--- a/src/connector/python/windows/python3/taos/cinterface.py
+++ b/src/connector/python/windows/python3/taos/cinterface.py
@@ -21,11 +21,17 @@ def _crow_timestamp_to_python(data, num_of_rows, nbytes=None, micro=False):
         _timestamp_converter = _convert_microsecond_to_datetime
 
     if num_of_rows > 0:
-        return list(map(_timestamp_converter, ctypes.cast(
-            data, ctypes.POINTER(ctypes.c_int64))[:abs(num_of_rows)]))
+        return [
+            None if ele == FieldType.C_BIGINT_NULL else _timestamp_converter(ele) for ele in ctypes.cast(
+                data, ctypes.POINTER(
+                    ctypes.c_int64))[
+                :abs(num_of_rows)]]
     else:
-        return list(map(_timestamp_converter, ctypes.cast(
-            data, ctypes.POINTER(ctypes.c_int64))[:abs(num_of_rows)]))
+        return [
+            None if ele == FieldType.C_BIGINT_NULL else _timestamp_converter(ele) for ele in ctypes.cast(
+                data, ctypes.POINTER(
+                    ctypes.c_int64))[
+                :abs(num_of_rows)]]
 
 
 def _crow_bool_to_python(data, num_of_rows, nbytes=None, micro=False):