| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Pavel Golub <pavel(at)gf(dot)microolap(dot)com>, Pavel Golub <pavel(at)microolap(dot)com> |
| Cc: | pgsql-bugs(at)postgresql(dot)org, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: pg_tablespace.spclocation column removed in 9.2 |
| Date: | 2012-06-25 13:46:26 |
| Message-ID: | 20031.1340631986@sss.pgh.pa.us |
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| Thread: | |
| Lists: | pgsql-bugs pgsql-hackers |
Pavel Golub <pavel(at)microolap(dot)com> writes:
> I'm aware of problems caused by this hard coded column. My proposal is
> to convert pg_tablespace to system view may be?
It's not that easy to make a 100% backwards compatible view for a system
catalog. The main sticking point is the OID column; see recent problems
with pg_roles' OID column for an example. On the whole I don't think
renaming pg_tablespace and inserting a mostly-compatible view would be
a net advance.
More generally, I don't see that this particular incompatibility in
the system catalogs is worse than many others that we've perpetrated.
regards, tom lane
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