Swap primary keys between two records in the same table in Postgres

What if we need to swap two primary keys on the same table? What's the best and efficient way to do the same? let's check Now:-

Let's assume we have a user table which has 3 columns among all the rows I have taken two sample rows which are the target rows for us.

Id	Name	Email
101	Sabyasachi	XX@gmail.com
105	Saghosh	xxx@gmail.com

We need to swap the primary keys (which are unique by nature) between those two records so our desired result will be something like  

Id	Name	Email
105	Sabyasachi	XX@gmail.com
101	Saghosh	xxx@gmail.com

Now lets buield a query using CTE(common table expression) to solve the problem:-

with source_user as (

  select

    id

  from

    users

  where

    id = 101

),

destination_user as (

  select

    id

  from

    users

  where

    id = 105

)

update users

set id =

  case 

    when users.id = source_user.id then destination_user.id

    when users.id = destination_user.id then source_user.id

   end

from source_user, destination_user   

where users.id IN (source_user.id, destination_user.id);

That's it will do the work for us. Easy but tricky solution  :)