Fixed an issue where adding/updating records fails if the table name contains percent sign. Fixes #4438.

web/pgadmin/tools/sqleditor/utils/save_changed_data.py

@@ -36,6 +36,8 @@ def save_changed_data(changed_data, columns_info, conn, command_obj,
     operations = ('added', 'updated', 'deleted')
     list_of_sql = {}
     _rowid = None
+    # Replace '%' with '%%' as python use '%' as string formatting.
+    command_obj.object_name = command_obj.object_name.replace('%', '%%')
 
     pgadmin_alias = {
         col_name: col_info['pgadmin_alias']