Re: FSM versus GIN pending list bloat

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Jeff Janes <jeff(dot)janes(at)gmail(dot)com>
Cc: Simon Riggs <simon(at)2ndquadrant(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: FSM versus GIN pending list bloat
Date: 2015-09-02 18:57:54
Message-ID: CA+TgmoY6DP1T580zG3ytAt=MVPBz7OC0e0oS5oJ7gfB9Kj3+Rw@mail.gmail.com
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On Mon, Aug 10, 2015 at 1:16 PM, Jeff Janes <jeff(dot)janes(at)gmail(dot)com> wrote:
> I have a simple test case that inserts an array of 101 md5 digests into each
> row. With 10_000 of these rows inserted into an already indexed table, I
> get 40MB for the table and 80MB for the index unpatched. With the patch, I
> get 7.3 MB for the index.

Uh, wow. Seems like we should do something about this.

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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