| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> |
| Cc: | Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com>, Kevin Grittner <kgrittn(at)ymail(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Timothy Garnett <tgarnett(at)panjiva(dot)com>, PostgreSQL Bugs <pgsql-bugs(at)postgresql(dot)org> |
| Subject: | Re: Re: BUG #12990: Missing pg_multixact/members files (appears to have wrapped, then truncated) |
| Date: | 2015-05-11 02:05:24 |
| Message-ID: | CA+TgmoZK+GyW1Q0Uo_orEHQkgqoxxBQWnd11D+0fTcBU=+ycQw@mail.gmail.com |
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| Lists: | pgsql-bugs |
On Fri, May 8, 2015 at 10:46 PM, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
>>> I think the fix is something like "if nextMXact == oldestMultiXactId,
>>> then there are no active multixacts, so the offsetStopLimit should be
>>> set to nextOffset - (a segment's worth)".
>>
>> Makes sense.
>
> Here's a patch that attempts to implement this.
I've now committed and back-patched this.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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