Re: Regarding GIN Fast Update Technique

From: Amit Langote <amitlangote09(at)gmail(dot)com>
To: Robert Haas <robertmhaas(at)gmail(dot)com>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Regarding GIN Fast Update Technique
Date: 2013-06-07 14:28:56
Message-ID: CA+HiwqH+r9OxdbFnoKSZRwgdrMAXH3On_8QJioq_A4a0u_NkAA@mail.gmail.com
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On Fri, Jun 7, 2013 at 11:15 PM, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
> On Wed, Jun 5, 2013 at 10:06 PM, Amit Langote <amitlangote09(at)gmail(dot)com> wrote:
>> At what point do the entries in the pending list are moved to the main
>> GIN data structure?
>> From documentation, I read that overflowing work_mem and vacuum are
>> two such causes; what about when the concerned backend is to exit and
>> autovacuum has not yet kicked in?
>
> I don't think there's any special handling for that case, nor do I
> think any is needed.
>

Okay, aside from that case, what else would move those to the main
structure? They (the entries in the unsorted pending list) are in the
local memory (work_mem?) of the backend, right?

--
Amit Langote

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