Re: BUG #17511: Inconsistent permissions on some information_schema tables

The following bug has been logged on the website:

Bug reference:      17511
Logged by:          Kirk Parker
Email address:      khp@equatoria.us
PostgreSQL version: 13.7
Operating system:   AWS Linux 2 -- 4.14.276-211.499.amzn2.x86_64
Description:       
[...]
The table at issue is constraint_column_usage--the ordinary role 'apache'
does not have SELECT rights to that table, though it does to the other two
catalog tables used by this query.

Yes, there's an easy workaround by just GRANTing SELECT on that table to
'apache', but it seems like an odd inconsistency. Interestingly, the same
limitation does not apply to pg_catalog.pg_get_constraintdef(), which is
used by psql's \dt command, but that query does not produce the local column
name as a separate result column (which is more useful for my immediate
purpose here.)