| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Andres Freund <andres(at)anarazel(dot)de> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Joel Jacobson <joel(at)trustly(dot)com>, Jim Nasby <Jim(dot)Nasby(at)bluetreble(dot)com>, Magnus Hagander <magnus(at)hagander(dot)net>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: pg_stat_*_columns? |
| Date: | 2015-06-23 20:32:54 |
| Message-ID: | CA+Tgmoaf3SqTLfns3VXm15KUA7qhsRZgN6QHO5ir7rcRhYCMiw@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Tue, Jun 23, 2015 at 3:47 PM, Andres Freund <andres(at)anarazel(dot)de> wrote:
> On 2015-06-22 21:05:52 -0400, Robert Haas wrote:
>> Interesting idea. We could consider the set of stats files a database
>> unto itself and reserve a low-numbered OID for it. The obvious thing
>> to do is use the database's OID as the relfilenode, but then how do
>> you replace the stats file?
>
> The relmapper infrastructure should be able to take care of that.
How? I think it assumes that the number of mapped entries is pretty small.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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