Re: Clarification to catalog-pg-class

Bruce,

>> Currently, catalog-pg-class is a bit confusing as to where FKs are
>> tracked in pg_class.  Please update the lines for relchecks and
>> reltriggers to read:
>>
>> relchecks    int2          Number of check constraints on the table (but not
>> other types of constraints); see pg_constraint catalog
>
> Uh, why do we have to say "but" when we clearly say "check constraints"?
> Do we need to say "CHECK" contraints?

Because I've encountered two people on IRC (and a client) who were
confused about this, and it confused me briefly when I fielded their
questions.  Saying "CHECK constraints" would also probably do it, or
saying "check constraints (only)"

BTW, why do we still have relukeys etc. around?  If we haven't used them
in 5 versions, shouldn't we purge them?

>
>> reltriggers    int2         Number of triggers on the table, including
>> constraint-triggers for foreign keys; see pg_trigger catalog
>
> pg_class doesn't have that column anymore, it has relhastriggers.

Ah.  Where are we tracking FKs at this point, then?

--Josh