From: Tom Lane <tgl@sss.pgh.pa.us>
To: Gregory Stark <stark@enterprisedb.com>
Cc: Simon Riggs <simon@2ndQuadrant.com>
Cc: Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>
Cc: ITAGAKI Takahiro <itagaki.takahiro@oss.ntt.co.jp>
Cc: pgsql-hackers@postgresql.org
Subject: Re: rmgr hooks and contrib/rmgr_hook
Date: Mon, 15 Sep 2008 08:52:18 -0400
Message-ID: <24006.1221483138@sss.pgh.pa.us> (raw)
In-Reply-To: <87sks1oi4o.fsf@oxford.xeocode.com>
References: <20080901121833.4A18.52131E4D@oss.ntt.co.jp>
<1220345064.4371.275.camel@ebony.2ndQuadrant>
<20080902174613.76B2.52131E4D@oss.ntt.co.jp>
<1220348980.4371.316.camel@ebony.2ndQuadrant>
<14451.1220369969@sss.pgh.pa.us>
<1220372673.4371.465.camel@ebony.2ndQuadrant>
<48CB72C8.1070700@enterprisedb.com>
<1221470800.3913.1229.camel@ebony.2ndQuadrant>
<87sks1oi4o.fsf@oxford.xeocode.com>
Gregory Stark <stark@enterprisedb.com> writes:
> Simon Riggs <simon@2ndQuadrant.com> writes:
>> Indexes have always been able to be added dynamically. Now they can be
>> recovered correctly as well.
> Hm, so currently if you want to add a new indexam you can't just insert into
> pg_am and make them recoverable. You basically have to build in your new index
> access method into Postgres with the new rmgr. That is annoying and a problem
> worth tackling.
I concur with Heikki that that's not exactly a compelling use-case.
I've never heard of anyone building a non-core index AM at all; much
less trying to use it in a production context. Given the obvious
potential for version-mismatch-type problems, it's hard to believe
that anyone ever would try.
regards, tom lane
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To: pgsql-patches@postgresql.org
Cc: tgl@sss.pgh.pa.us, stark@enterprisedb.com, simon@2ndQuadrant.com, heikki.linnakangas@enterprisedb.com, itagaki.takahiro@oss.ntt.co.jp, pgsql-hackers@postgresql.org
Subject: Re: rmgr hooks and contrib/rmgr_hook
In-Reply-To: <24006.1221483138@sss.pgh.pa.us>
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