Added support for Reassign/Drop Owned for login roles. Fixes #3893

docs/en_US/managing_cluster_objects.rst

@@ -18,4 +18,5 @@ database, right-click on the *Databases* node, and select *Create Database...*
    move_objects
    resource_group_dialog
    role_dialog
-   tablespace_dialog
+   tablespace_dialog
+   role_reassign_dialog

docs/en_US/release_notes_5_5.rst

@@ -9,6 +9,7 @@ This release contains a number of bug fixes and new features since the release o
 New features
 ************
 
+| `Issue #3893 <https://redmine.postgresql.org/issues/3893>`_ -  Added support for Reassign/Drop Owned for login roles.
 | `Issue #3920 <https://redmine.postgresql.org/issues/3920>`_ -  Do not block the query editor window when running a query.
 | `Issue #6559 <https://redmine.postgresql.org/issues/6559>`_ -  Added option to provide maximum width of the column when 'Resize by data?’ option in the preferences is set to True.
 

docs/en_US/role_reassign_dialog.rst

@@ -0,0 +1,39 @@
+
+.. _role_reassign_dialog:
+
+**************************************
+`Role Reassign/Drop Own Dialog`:index:
+**************************************
+
+Use the *Role Reassign/Drop Own* dialog to change the ownership of database objects owned
+by a database role. This dialog instructs the system to change the ownership of database
+objects owned by any of the *old_roles* to *new_role*.
+
+The *Role Reassign/Drop Own* dialog organizes the Reassign & Drop role through General tab.
+
+.. image:: images/role_reassign_dialog.png
+    :alt: Role Reassign/Drop Own dialog
+    :align: center
+
+* Use the *Role operation* field to provide Reassign option.
+* Provide a new role in the *Reassign Objects to* field; The ownership of all the objects within the selected database,
+  and of all shared objects (databases, tablespaces), owned by the *old_role* will be reassigned to *new_role*.
+* Provide a database on which the reassignment is to be carried out.
+
+The above example demonstrates reassigning *old_role* to *new_role*.
+
+Removing database objects owned by a database role.
+
+.. image:: images/role_drop_dialog.png
+    :alt: Role Reassign/Drop Own dialog
+    :align: center
+
+* Use the *Role operation* field to provide Drop option.
+* Use the *Drop with* field to provide CASCADE option, RESTRICT is default.
+* Provide a database on which the drop of objects is to be carried out.
+
+The above examples demonstrates drop owned by *role*.
+
+* Click the *Help* button (?) to access online help.
+* Click the *OK* button to save work.
+* Click the *Cancel* button to exit without saving work.