Re: FDW state from plan time
| От | Dave Page |
|---|---|
| Тема | Re: FDW state from plan time |
| Дата | |
| Msg-id | BANLkTi=+tSJEBu6dnF2YBB4vYxPo8-tuWw@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: FDW state from plan time (Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>) |
| Список | pgsql-hackers |
On Sun, Apr 3, 2011 at 7:05 PM, Heikki Linnakangas <heikki.linnakangas@enterprisedb.com> wrote: > On 03.04.2011 19:38, Tom Lane wrote: >> >> Dave Page<dpage@pgadmin.org> writes: >>> >>> I can't help thinking I must be missing something obvious here, but is >>> there any way to persist some data from PlanForeignScan to at least >>> BeginForeignScan in an FDW? I'm aware of fdwplan->fdw_private, but at >>> that needs to be copyObject compatible, it's not much use to me. > > If you have to, you can encapsulate arbitrary data in a bytea const. > >> Or you could use a hash of some other identifying information (perhaps >> the OID of the foreign server would be sufficient ID for a connection?). > > Foreign server + user id, probably. That's what I would recommend in this > case. And database in some cases, but yes :-) -- Dave Page Blog: http://pgsnake.blogspot.com Twitter: @pgsnake EnterpriseDB UK: http://www.enterprisedb.com The Enterprise PostgreSQL Company
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