proposal: adding a GUC for BAS_BULKREAD strategy

From: didier <did447(at)gmail(dot)com>
To: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: proposal: adding a GUC for BAS_BULKREAD strategy
Date: 2014-09-23 12:47:33
Message-ID: CAJRYxuL98fE_QN7McnCM5HUo8p9ceNJw=20GoN5NVdZdueJFqg@mail.gmail.com
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Hi,

Currently the value is hard code to NBuffers / 4 but ISTM that with
bigger shared_buffer it's too much, ie even with a DB 10 to 20 time
the memory size there's a lot of tables under this limit and nightly
batch reports are trashing the shared buffers cache as if there's no
tomorrow.

regards,

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