Re: BUG #7756: When upgrading postgis extension get row is too big: size 9272, maximum size 8160

From: Andres Freund <andres(at)2ndquadrant(dot)com>
To: Paragon Corporation <lr(at)pcorp(dot)us>
Cc: 'Tom Lane' <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-bugs(at)postgresql(dot)org
Subject: Re: BUG #7756: When upgrading postgis extension get row is too big: size 9272, maximum size 8160
Date: 2012-12-17 18:20:47
Message-ID: 20121217182047.GB16554@awork2.anarazel.de
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On 2012-12-17 12:40:30 -0500, Paragon Corporation wrote:
> I couldn't get my EDB install to give anything meaningful to back trace, but
> same issue happens on my mingw dev install (which is running 9.2.1)
> I have the backtrace for that on this ticket:
>
> http://trac.osgeo.org/postgis/ticket/1959

Its irritating that the error is happening in that simple_heap_update
where the backtrace indicates the old tuple has a t_len = 7011 and the
only variable length field changed is extversion which shouldn't be that
long.

Greetings,

Andres Freund

--
Andres Freund http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services

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