library is_obsolete column is an integer instead of a boolean

[dsenalik]

I just want to point out that the is_obsolete column in the library table is, for some reason, an integer instead of a boolean.
Is there a historical reason for this? Because it makes for a harder-to-implement field where the user needs to enter a number instead of use a checkbox.

                                                   Table "teapot.library"
      Column      |            Type             | Collation | Nullable |                      Default                       
------------------+-----------------------------+-----------+----------+----------------------------------------------------
 is_obsolete      | integer                     |           | not null | 0