Re: psql patch for datestyle

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Oliver Elphick <olly(at)lfix(dot)co(dot)uk>
Cc: PostgreSQL Patches <pgsql-patches(at)postgresql(dot)org>
Subject: Re: psql patch for datestyle
Date: 2003-03-20 07:05:09
Message-ID: 200303200705.h2K759O23719@candle.pha.pa.us
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Patch applied. Thanks.

---------------------------------------------------------------------------

Oliver Elphick wrote:
> At present, dates are put into a dump in the format specified by the
> default datestyle. This is not portable between installations.
>
> This patch sets DATESTYLE to ISO at the start of a pg_dump, so that the
> dates written into the dump will be restorable onto any database,
> regardless of how its default datestyle is set.
>
> Index: pg_dump.c
> ===================================================================
> RCS file: /projects/cvsroot/pgsql-server/src/bin/pg_dump/pg_dump.c,v
> retrieving revision 1.317
> diff -u -r1.317 pg_dump.c
> --- pgsql-orig/src/bin/pg_dump/pg_dump.c 2003/02/13 04:54:16 1.317
> +++ pgsql/src/bin/pg_dump/pg_dump.c 2003/03/03 06:22:34
> @@ -546,6 +546,13 @@
> PQerrorMessage(g_conn));
> PQclear(res);
>
> + /* Set the datestyle to ISO to ensure the dump's portability */
> + res = PQexec(g_conn, "SET DATESTYLE = ISO");
> + if (!res || PQresultStatus(res) != PGRES_COMMAND_OK)
> + exit_horribly(g_fout, NULL, "could not set datestyle to
> ISO: %s",
> + PQerrorMessage(g_conn));
> + PQclear(res);
> +
> /*
> * If supported, set extra_float_digits so that we can dump
> float data
> * exactly (given correctly implemented float I/O code, anyway)
>
>
>
> --
> Oliver Elphick Oliver(dot)Elphick(at)lfix(dot)co(dot)uk
> Isle of Wight, UK http://www.lfix.co.uk/oliver
> GPG: 1024D/3E1D0C1C: CA12 09E0 E8D5 8870 5839 932A 614D 4C34 3E1D 0C1C
> ========================================
> "A new commandment I give to you, that you love one
> another, even as I have loved you."
> John 13:34
>
>
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>

--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
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