From: Christoph Berg <myon@debian.org>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Subject: Re: pgsql: Build src/port files as a library with -fPIC, and use that in li
Date: Tue, 29 Jan 2019 16:55:29 +0100
Message-ID: <20190129155528.GK9860@msg.df7cb.de> (raw)
In-Reply-To: <27653.1548774621@sss.pgh.pa.us>
References: <E1g5Y8r-0006vs-QA@gemulon.postgresql.org>
<20180928115830.GC26142@msg.df7cb.de>
<19404.1538140436@sss.pgh.pa.us>
<20180928132013.GE26142@msg.df7cb.de>
<20671.1538142538@sss.pgh.pa.us>
<20190129140437.GF9860@msg.df7cb.de>
<27653.1548774621@sss.pgh.pa.us>
Re: Tom Lane 2019-01-29 <27653.1548774621@sss.pgh.pa.us>
> > It took a while to notice, but this change does break 8.2's initdb if
> > libpq5 from PG12 is installed:
> > $ /usr/lib/postgresql/8.2/bin/initdb
> > /usr/lib/postgresql/8.2/bin/initdb: symbol lookup error: /usr/lib/postgresql/8.2/bin/initdb: undefined symbol: pqsignal
>
> Well, 8.2 is *very* long out of support, and there are plenty of
> nasty bugs you're at risk of if you keep using it. So I don't
> find this to be a good argument for contorting what we do in v12.
I try to keep the old versions alive on apt.pg.o for Debian unstable (only)
so I have something to grab when customers ask questions about the old
versions. We are probably lucky that 8.2 broke only now, and leaving
it broken is a fair thing. I was just mentioning for completeness, I
didn't mean to insist on fixing it.
> If you really want to keep using 8.2 (and even make new installations
> with it!?), you could back-patch the 8.3 patch that made sure that
> initdb didn't absorb pqsignal, pg_encoding_to_char, etc from libpq.
> It looks like what you'd need is a portion of the Makefile changes
> from 8468146b03c87f86162cee62e0de25f6e2d24b56.
I might give that a shot, but if it's too hard, dropping 8.2 "support"
is not a problem. Thanks for digging up the commit hash.
Christoph
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To: pgsql-committers@postgresql.org
Cc: myon@debian.org, tgl@sss.pgh.pa.us, pgsql-hackers@postgresql.org
Subject: Re: pgsql: Build src/port files as a library with -fPIC, and use that in li
In-Reply-To: <20190129155528.GK9860@msg.df7cb.de>
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