Fixed an issue where error message from the database server need spac…

…e between two sentences. pgadmin-org#8165

docs/en_US/release_notes_9_0.rst

@@ -34,7 +34,9 @@ Bug fixes
   | `Issue #6968 <https://github.com/pgadmin-org/pgadmin4/issues/6968>`_ -  Fixed an issue where option key was not registering in PSQL tool.
   | `Issue #8072 <https://github.com/pgadmin-org/pgadmin4/issues/8072>`_ -  Fixed an issue where Schema Diff not produce difference script for Index definition with where condition.
   | `Issue #8142 <https://github.com/pgadmin-org/pgadmin4/issues/8142>`_ -  Correct the documentation for the MFA configuration.
+  | `Issue #8165 <https://github.com/pgadmin-org/pgadmin4/issues/8165>`_ -  Fixed an issue where error message from the database server need space between two sentences.
   | `Issue #8208 <https://github.com/pgadmin-org/pgadmin4/issues/8208>`_ -  Allow deleting the entry while creating/adding new label to enumeration type.
   | `Issue #8209 <https://github.com/pgadmin-org/pgadmin4/issues/8209>`_ -  Fixed an issue where properties dialog throwing an error for Materialized View.
   | `Issue #8254 <https://github.com/pgadmin-org/pgadmin4/issues/8254>`_ -  Fix a formatting issue in View/Edit tool generated SQL where some filters are applied.
   | `Issue #8255 <https://github.com/pgadmin-org/pgadmin4/issues/8255>`_ -  Fixed an issue where tooltip on a dropdown button is blocking access to dropdown menu.
+  | `Issue #8256 <https://github.com/pgadmin-org/pgadmin4/issues/8256>`_ -  Fix the error occurring while loading preferences on startup.

web/pgadmin/utils/driver/psycopg3/connection.py

@@ -1680,7 +1680,7 @@ def _formatted_exception_msg(self, exception_obj, formatted_msg):
         elif hasattr(exception_obj, 'diag') and \
             hasattr(exception_obj.diag, 'message_detail') and\
                 exception_obj.diag.message_detail is not None:
-            errmsg = exception_obj.diag.message_detail + \
+            errmsg = exception_obj.diag.message_detail + '\n' + \
                 exception_obj.diag.message_primary
         else:
             errmsg = str(exception_obj)