Alvaro Herrera <alvhe...@commandprompt.com> writes:
> Excerpts from depstein's message of lun jul 26 08:05:24 -0400 2010:
>> I just want to note that one reason regclass may be used in user tables (as
>> opposed to, say, regtype) is that in PL/pgSQL trigger procedures there is a
>> special variable TG_RELID, which provides a convenient reference to the
>> table that pulled the trigger (this is the case for some of our uses).
> I've wanted to use regclass (and regproc too, for that matter) in some
> db designs, but I've refrained precisely because of the movability issues.
> Note that you can use TG_SCHEMANAME and TG_RELNAME in plpgsql triggers
> anyway.
How does TG_RELID lead to wanting to store regclass columns, exactly?
I've always supposed that was a legacy parameter rather than something
anyone would actually use.
regards, tom lane
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