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Date:      Sat, 31 Jan 2004 05:06:48 +0100
From:      Palle Girgensohn <girgen@pingpong.net>
To:        Dan Langille <dan@langille.org>
Cc:        ports@freebsd.org
Subject:    Re: databases/postgresql7 dump + restore didn't include pgcrypto functions
Message-ID:  <72570000.1075522008@palle.girgensohn.se>
In-Reply-To: <401AC855.2067.177977F8@localhost>
References:  <401AC855.2067.177977F8@localhost>

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Hi Dan,

undefined symbol "elog"... From what I can see in the error message below, 
the pgcrypto.so file was not missing, but the symbol "elog" in pgcrypto.so 
was not found. Did you update the databases/postgresql-contrib port when 
updating databases-postgresql7? Seems likely that a 7.3.* pgcrypto.so might 
not accept a postgresql-7.4 environment.

... checking... Hmm... the elog function is not in the postgres binary 
anymore. This is most likely the problem. I am not a linker wizard, but 
browsing the different binaries gives me a clue:

pg-7.4 system $ nm -D /usr/local/bin/postgres | grep elog
0818e100 T elog
081015bc T elog_node_display

pg-7.3 system $ nm -D /usr/local/bin/postgres | grep elog
081ac188 T elog_finish
08116e28 T elog_node_display

If I'm not wrong, this means that postgresql functions, at least those 
programmed in C and using elog, must be rebuilt when updating the server 
7.3 -> 7.4.

Perhaps adding a reminder somewhere could help. Any suggestions as to where 
to put such a reminder?

/Palle

--On fredag, januari 30, 2004 21.10.45 -0500 Dan Langille 
<dan@langille.org> wrote:

> Hi folks,
>
> I upgraded two servers today from 7.3.* to 7.4.1.  In both cases, the
> pgcrypto functions were excluded.  I used pg_dumpall to create the
> output.  Examining the dump file I see this:
>
> connect "working-copy.freshports.org"
> --
> -- PostgreSQL database dump
> --
>
> SET SESSION AUTHORIZATION 'dan';
>
> SET search_path = public, pg_catalog;
>
> --
> -- TOC entry 235 (OID 19127468)
> -- Name: digest (text, text); Type: FUNCTION; Schema: public; Owner:
> dan
> --
>
> CREATE FUNCTION digest (text, text) RETURNS bytea
>     AS '$libdir/pgcrypto', 'pg_digest'
>     LANGUAGE c;
>
> But within that database, there is no digest function:
>
> working-copy.freshports.org=# \df digest
>                    List of functions
>  Result data type | Schema | Name | Argument data types
> ------------------+--------+------+---------------------
> (0 rows)
>
> working-copy.freshports.org=#
>
> The cause of the problem is illustrated by this attempt to manually
> create the functions:
>
> freshports=# CREATE FUNCTION digest (text, text) RETURNS bytea
> freshports-#     AS '$libdir/pgcrypto', 'pg_digest'
> freshports-#     LANGUAGE c;
> ERROR:  could not load library
> "/usr/local/lib/postgresql/pgcrypto.so": dlopen
> '/usr/local/lib/postgresql/pgcrypto.so' failed. (/us
> r/local/lib/postgresql/pgcrypto.so: Undefined symbol "elog")
>
> It appears that the libraries were removed.  Does that make sense?
>
> I upgraded using portupgrade.  I wonder if that's why
> /usr/local/lib/postgresql was blown away....
>
> What I had to do was recompile and install contrib/pgcrypto and then
> import the functions.
>
> FWIW: I was using the FreeBSD port on 4.9-STABLE.
> --
> Dan Langille : http://www.langille.org/
> BSDCan - http://www.bsdcan.org/
>






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