| From: | "Albe Laurenz" <laurenz(dot)albe(at)wien(dot)gv(dot)at> |
|---|---|
| To: | "Heikki Linnakangas *EXTERN*" <heikki(dot)linnakangas(at)enterprisedb(dot)com> |
| Cc: | "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: | 2011-07-22 12:09:35 |
| Message-ID: | D960CB61B694CF459DCFB4B0128514C206B20EF1@exadv11.host.magwien.gv.at |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
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.
Yours,
Laurenz Albe
| Attachment | Content-Type | Size |
|---|---|---|
| fdw-usermapping-doc.patch | application/octet-stream | 2.3 KB |
| fdw-scan-doc.patch | application/octet-stream | 1.2 KB |
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Yeb Havinga | 2011-07-22 13:13:01 | Re: Parameterized aggregate subquery (was: Pull up aggregate subquery) |
| Previous Message | Kohei KaiGai | 2011-07-22 12:08:40 | Re: [v9.1] sepgsql - userspace access vector cache |