Cast from `integer` to `bit(1)` does not exist

[emarsden]

pgeltestdb=> select 0::bit;
ERROR:  EXPLICIT CAST: cast from `integer` to `bit(1)` does not exist: 0 (errno 1105) (sqlstate HY000)

This syntax is accepted by PostgreSQL.

Using the :latest Docker image.

[Hydrocharged]

Thank you for the issue! This is related to some work I was already on before the issue was posted, so I'll take care of the others you've posted first and this will be included in that other PR. I'll link it as soon as it's ready!