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Re: Use %u to print user mapping's umid and userid - Mailing list pgsql-hackers

From Michael Paquier
Subject Re: Use %u to print user mapping's umid and userid
Date
Msg-id CAB7nPqTfZeB-skop9ow+_tzaWYvCDHq_Vtu6bjfWX2p3WbKyAg@mail.gmail.com
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In response to Re: Use %u to print user mapping's umid and userid  (Ashutosh Bapat <ashutosh.bapat@enterprisedb.com>)
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On Tue, Feb 9, 2016 at 1:22 PM, Ashutosh Bapat
<ashutosh.bapat@enterprisedb.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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