Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> writes:
> Don't ever rely on adsrc. It's useless. Use pg_get_expr(adbin)
> instead. That's safe, for instance, if the sequence gets renamed.
It's probably past time we got rid of that column altogether. It just
wastes space and cycles. There was an argument for not being too quick
to get rid of it, but we deprecated it in 7.2 ... surely people have had
more than enough time to fix their applications.
regards, tom lane