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Re: reloptions and toast tables

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Zdenek Kotala <Zdenek(dot)Kotala(at)Sun(dot)COM>
Cc: Alvaro Herrera <alvherre(at)commandprompt(dot)com>, Euler Taveira de Oliveira <euler(at)timbira(dot)com>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: reloptions and toast tables
Date: 2008-12-21 17:34:14
Message-ID: 4525.1229880854@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackers
Zdenek Kotala <Zdenek(dot)Kotala(at)Sun(dot)COM> writes:
> Another potential problem with toast setting is that reloption is toastable and 
> it could generates loops in detoasting pg_class tuples. For example toast chunk 
> size cannot be implement like reloption (or pg_class should use every time 
> default values).

Nonsense.  Toast chunk size isn't going to become variable *at all*,
unless we go over to the proposed toast indexing method that allows
the chunks to be self-identifying; in which case there's no problem
in pg_class or anyplace else.

			regards, tom lane

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