Fixed an issue where the wrong schema is displayed for a foreign key …

…in the schema diff tool. #5488

docs/en_US/release_notes_6_17.rst

@@ -25,7 +25,9 @@ Housekeeping
 Bug fixes
 *********
 
+  | `Issue #5488 <https://github.com/pgadmin-org/pgadmin4/issues/5488>`_ -  Fixed an issue where the wrong schema is displayed for a foreign key in the schema diff tool.
   | `Issue #5495 <https://github.com/pgadmin-org/pgadmin4/issues/5495>`_ -  Ensure that the query history date format in Desktop mode matches the format of the locale of the pgadmin server.
   | `Issue #5505 <https://github.com/pgadmin-org/pgadmin4/issues/5505>`_ -  Fixed an issue where the CSV file would not download if the CSV quote character length exceeded 1.
   | `Issue #5513 <https://github.com/pgadmin-org/pgadmin4/issues/5513>`_ -  Ensure that DATA_DIR dependent folders/files are automatically created inside the specified DATA_DIR if they are not specified separately in the configuration file.
   | `Issue #5548 <https://github.com/pgadmin-org/pgadmin4/issues/5548>`_ -  Fixed an issue where editor position was wrong when editing data from result grid.
+  | `Issue #5575 <https://github.com/pgadmin-org/pgadmin4/issues/5575>`_ -  Ensure the query tool is launched successfully for the servers registered with the PostgreSQL service.

web/pgadmin/browser/server_groups/servers/databases/schemas/tables/constraints/foreign_key/utils.py

@@ -355,8 +355,8 @@ def _checks_for_schema_diff(table, schema, data):
 
     if 'remote_schema' not in data:
         data['remote_schema'] = None
-    elif 'schema' in data and (schema is None or schema == ''):
-        data['remote_schema'] = data['schema']
+        if 'schema' in data and (schema is None or schema == ''):
+            data['remote_schema'] = data['schema']
 
     if 'remote_table' not in data:
         data['remote_table'] = None

web/pgadmin/browser/server_groups/servers/databases/schemas/tables/schema_diff_utils.py

@@ -30,7 +30,8 @@ class SchemaDiffTableCompare(SchemaDiffObjectCompare):
     constraint_keys_to_ignore = ['relname', 'nspname', 'parent_tbl',
                                  'attrelid', 'adrelid', 'fknsp', 'confrelid',
                                  'references', 'refnsp', 'remote_schema',
-                                 'conkey', 'indkey', 'references_table_name']
+                                 'conkey', 'indkey', 'references_table_name',
+                                 'refnspoid']
 
     trigger_keys_to_ignore = ['xmin', 'tgrelid', 'tgfoid', 'tfunction',
                               'tgqual', 'tgconstraint']

web/pgadmin/tools/schema_diff/directory_compare.py

@@ -13,7 +13,6 @@
 import string
 from pgadmin.tools.schema_diff.model import SchemaDiffModel
 from flask import current_app
-from pgadmin.utils.preferences import Preferences
 from pgadmin.utils.constants import PGADMIN_STRING_SEPARATOR
 
 count = 1