[CentOS] PHP 5.3: IUS vs CentOS repos

[James Hogarth]

>
> pg x.y versions prior to 9.0 replaced the PG 8.1 that came in EL5 (9.0
> and later install to new directories so they can exist side by side).
> further, the newer libpq isn't directly compatible with the older libpq,
> so this compat-libs package provides a 'shim' library to fake the older
> version.
>
>     $ rpm -qf /usr/lib/libpq.so.4.1
>     compat-postgresql-libs-4-1PGDG.rhel5
>     $ rpm -qf /usr/lib/libpq.so.5.1
>     postgresql-libs-8.3.11-1PGDG.el5
>
>

That looks like the PGDG postgres repos to me and not the distribution
postgres package, What is done there is pretty much out of scope for
that which Redhat does for their postgres/postgres84 packaging.