Question about maintenance_work_mem and shared_buffer

From: Rodrigo Barboza <rodrigombufrj(at)gmail(dot)com>
To: "pgsql-admin(at)postgresql(dot)org" <pgsql-admin(at)postgresql(dot)org>
Subject: Question about maintenance_work_mem and shared_buffer
Date: 2013-05-21 15:07:15
Message-ID: CANs8QJbjeMREKsBAQNmKThU5ppYeB_apsmsWvdYOkii6cn56eQ@mail.gmail.com
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Hi, everyone.
I have a doubt.
I have a 32-bit postrgesql running with 2.5gb of shared_buffer.
And I have maintenance_work_mem = 1gb and autovacuum_max_workers = 3.
How maintenance_work_mem is related to shared_buffer?
If the 3 workers uses 1gb, will the database crash?
Or their memory usage are separated from each other?

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