pg_toast_temp_xx AND pg_temp_xx SCHEMAS

From: "Fernando Hevia" <fhevia(at)ip-tel(dot)com(dot)ar>
To: <pgsql-general(at)postgresql(dot)org>
Subject: pg_toast_temp_xx AND pg_temp_xx SCHEMAS
Date: 2009-03-10 19:06:28
Message-ID: 3362F16682784477B31018D4DA6B223B@iptel.com.ar
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Hi guys,

In one of my databases (8.3.6) I have around 25 schemas with names like
these. There seem to appear a couple of new ones every now and then.

The only reference I found was this:
---
http://www.postgresql.org/docs/8.3/static/release-8-3.html

* Place temporary tables' TOAST tables in special schemas named
pg_toast_temp_nnn (Tom)

This allows low-level code to recognize these tables as temporary, which
enables various optimizations such as not WAL-logging changes and using
local rather than shared buffers for access. This also fixes a bug wherein
backends unexpectedly held open file references to temporary TOAST tables.
---

Could anyone point me out some documentation about what these schemas mean?
Should I be worried? Anything I should do about it?

Thanks,
Fernando

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