| From: | Michael Paquier <michael(dot)paquier(at)gmail(dot)com> |
|---|---|
| To: | Ashutosh Bapat <ashutosh(dot)bapat(at)enterprisedb(dot)com> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Etsuro Fujita <fujita(dot)etsuro(at)lab(dot)ntt(dot)co(dot)jp>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Use %u to print user mapping's umid and userid |
| Date: | 2016-02-09 04:38:35 |
| Message-ID: | CAB7nPqTfZeB-skop9ow+_tzaWYvCDHq_Vtu6bjfWX2p3WbKyAg@mail.gmail.com |
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On Tue, Feb 9, 2016 at 1:22 PM, Ashutosh Bapat
<ashutosh(dot)bapat(at)enterprisedb(dot)com> wrote:
> The userid being printed is from UserMapping. The new API
> GetUserMappingById() allows an FDW to get user mapping by its OID. This API
> is intended to be used by FDWs to fetch the user mapping inferred by the
> core for given join between foreign relations. In such user mapping object ,
> userid may be -1 for a public user mapping.
I am a bit surprised by this sentence, UserMapping->userid is an Oid,
and those are unsigned. Could you clarify?
--
Michael
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