Re: libpq / SQL3
Tom Lane <tgl@sss.pgh.pa.us>
From: Tom Lane <tgl@sss.pgh.pa.us>
To: Peter Eisentraut <peter_e@gmx.net>
Cc: Chris Bitmead <chris@bitmead.com>, Postgres Hackers List <hackers@postgresql.org>
Date: 2000-07-08T02:56:06Z
Lists: pgsql-hackers
Peter Eisentraut <peter_e@gmx.net> writes: > Then it seems we need to add a column to pg_type to keep track the > "sqltypeid" as an int2. It would be annoying but doable. The alternative > for the moment would be to hard-code the translation at the client side, > i.e., have SQLDescribeCol translate the oid it received to some standard > number, but that would have obvious problems with user-defined types. But there are no standard numbers for user-defined types, now are there? Might as well use the type OID for them. Adding another column to pg_type inside the backend is not too hard, but to transmit that data to the frontend in every query would mean an incompatible protocol change, which is a much greater amount of pain. I doubt it's worth it. Putting the translation table into SQLDescribeCol is no worse than having the ODBC driver do a similar translation, which no one has complained about in my recollection. regards, tom lane