Re: make_greater_string busted

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Joe Conway <mail(at)joeconway(dot)com>
Cc: pgsql-patches(at)postgresql(dot)org, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Subject: Re: make_greater_string busted
Date: 2002-09-20 03:55:36
Message-ID: 200209200355.g8K3taA10973@candle.pha.pa.us
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Patch applied. Thanks.

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

Patch applied. Thanks.

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

Joe Conway wrote:
> Tom Lane wrote:
> > I see in your recent bytea-LIKE patch
> >
> > if (datatype != BYTEAOID && pg_database_encoding_max_length() > 1)
> > len = pg_mbcliplen((const unsigned char *) workstr, len, len - 1);
> > else
> > len -= -1;
> >
> > Surely there's one too many minus signs in that last?
>
> Bug by Joe; review by Tom; patch attached; please apply.
>
> Almost sounds like a short poem ;-)
>
> Joe
>
>

> Index: src/backend/utils/adt/selfuncs.c
> ===================================================================
> RCS file: /opt/src/cvs/pgsql-server/src/backend/utils/adt/selfuncs.c,v
> retrieving revision 1.117
> diff -c -r1.117 selfuncs.c
> *** src/backend/utils/adt/selfuncs.c 4 Sep 2002 20:31:29 -0000 1.117
> --- src/backend/utils/adt/selfuncs.c 18 Sep 2002 22:56:28 -0000
> ***************
> *** 3376,3382 ****
> if (datatype != BYTEAOID && pg_database_encoding_max_length() > 1)
> len = pg_mbcliplen((const unsigned char *) workstr, len, len - 1);
> else
> ! len -= -1;
>
> if (datatype != BYTEAOID)
> workstr[len] = '\0';
> --- 3376,3382 ----
> if (datatype != BYTEAOID && pg_database_encoding_max_length() > 1)
> len = pg_mbcliplen((const unsigned char *) workstr, len, len - 1);
> else
> ! len -= 1;
>
> if (datatype != BYTEAOID)
> workstr[len] = '\0';

>
> ---------------------------(end of broadcast)---------------------------
> TIP 4: Don't 'kill -9' the postmaster

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