fix check truncated setting with None table_client_settings

Author: rekby

CHANGELOG.md

@@ -1,3 +1,5 @@
+* Fixed exception while create ResultSet with None table_settings
+
 ## 3.0.1b7 ##
 * BROKEN CHANGE: deny any action in transaction after commit/rollback
 * BROKEN CHANGE: raise exception for truncated response by default

ydb/convert.py

@@ -12,6 +12,7 @@
 _DecimalInfRepr = 10**35
 _DecimalSignedInfRepr = -(10**35)
 _primitive_type_by_id = {}
+_default_allow_truncated_result = False
 
 
 def _initialize():
@@ -484,16 +485,18 @@ def __init__(self, result_sets_pb, table_client_settings=None):
             if table_client_settings is None
             else table_client_settings._make_result_sets_lazy
         )
+
+        allow_truncated_result = _default_allow_truncated_result
+        if table_client_settings:
+            allow_truncated_result = table_client_settings._allow_truncated_result
+
         result_sets = []
         initializer = (
             _ResultSet.from_message if not make_lazy else _ResultSet.lazy_from_message
         )
         for result_set in result_sets_pb:
             result_set = initializer(result_set, table_client_settings)
-            if (
-                result_set.truncated
-                and not table_client_settings._allow_truncated_result
-            ):
+            if result_set.truncated and not allow_truncated_result:
                 raise issues.TruncatedResponseError(
                     "Response for the request was truncated by server"
                 )

ydb/table.py

@@ -1002,7 +1002,7 @@ def __init__(self):
         self._native_json_in_result_sets = False
         self._native_interval_in_result_sets = False
         self._native_timestamp_in_result_sets = False
-        self._allow_truncated_result = False
+        self._allow_truncated_result = convert._default_allow_truncated_result
 
     def with_native_timestamp_in_result_sets(self, enabled):
         # type:(bool) -> ydb.TableClientSettings