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From: Heikki Linnakangas <hlinnakangas@vmware.com>
To: Alexander Korotkov <aekorotkov@gmail.com>
Cc: Robert Haas <robertmhaas@gmail.com>
Cc: Bruce Momjian <bruce@momjian.us>
Cc: pgsql-hackers <pgsql-hackers@postgresql.org>
Subject: Re: GIN improvements part 1: additional information
Date: Thu, 03 Oct 2013 23:41:58 +0300
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On 03.10.2013 23:37, Alexander Korotkov wrote:
> 2) Insert kluges into GIN to support both old and new formats. So, kluges
> are kluges :) I don't see elegant way to do it for now, because formats are
> very different.

Hmm. All you need is some code to read the old format, and a function to 
convert a page to new format before updating. It doesn't seem *that* 
kludgey. It's a fair amount of work, for sure, but not insurmountable.

- Heikki


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