| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Albe Laurenz <laurenz(dot)albe(at)wien(dot)gv(dot)at> |
| Cc: | "Heikki Linnakangas *EXTERN*" <heikki(dot)linnakangas(at)enterprisedb(dot)com>, "Tom Lane *EXTERN*" <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Questions and experiences writing a Foreign Data Wrapper |
| Date: | 2011-07-25 13:39:02 |
| Message-ID: | CA+TgmoZUBhvXtiVwNM6gBvDjMHJt1p0W=iCUjcbwJ3R=bmetQA@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Fri, Jul 22, 2011 at 8:09 AM, Albe Laurenz <laurenz(dot)albe(at)wien(dot)gv(dot)at> wrote:
> Heikki Linnakangas wrote:
>>> I guess I misunderstood the concept of user mapping.
>
>>> I guess it is time to read my SQL Standard, but some clarification
>>> in the documentation sure wouldn't hurt.
>>
>> Agreed, there doesn't seem to be any documentation on user mappings,
>> aside from the reference page for the CREATE USER MAPPING command. The
>> "5.10 Foreign Data" section should explain what user mappings are.
> Want
>> to give it a shot?
>
> Sure, see the attached 'fdw-usermapping-doc.patch'.
>
> I also include a 'fdw-scan-doc.patch' that tells FDW implementors *not*
> to start the scan in BeginForeignScan.
I've applied these with some modifications.
Thanks for the patches!
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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