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the number of pending entries in GIN index with FASTUPDATE=on

From: Fujii Masao <masao(dot)fujii(at)gmail(dot)com>
To: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: the number of pending entries in GIN index with FASTUPDATE=on
Date: 2012-11-02 16:48:56
Message-ID: CAHGQGwEvX=iK210jpTjZEXeWgTFR6k3NmmMoezAByTLbAZ6eqg@mail.gmail.com (view raw or flat)
Thread:
Lists: pgsql-hackers
Hi,

Is there the way to know the number of pending entries in GIN index which
was created with FASTUPDATE = on? If not, is it worth implementing the
function returning that number?

I sometimes would like to know that number when I measure how much
pending entries affect the performance of GIN index scan and tune how
frequently autovacuum should run VACUUM to clean up them.

Regards,

-- 
Fujii Masao


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