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To: ljb <ljb220@mindspring.com>
Cc: pgsql-bugs@postgresql.org
Subject: Re: pgtcl large object read/write corrupts binary data 
In-reply-to: <bni06l$2jh$2@news.hub.org> 
References: <bni06l$2jh$2@news.hub.org>
Comments: In-reply-to ljb <ljb220@mindspring.com>
	message dated "Mon, 27 Oct 2003 02:33:58 +0000"
Date: Thu, 30 Oct 2003 19:20:06 -0500
Message-ID: <4529.1067559606@sss.pgh.pa.us>
From: Tom Lane <tgl@sss.pgh.pa.us>
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ljb <ljb220@mindspring.com> writes:
> [Using PostgreSQL-7.3.4 and -7.4beta5, Tcl-8.4.x.]
> Binary data written to a Large Object with libpgtcl's pg_lo_write is
> corrupted.  Tcl is mangling the data - something to do with UTF-8
> conversion.  Example: 0x80 becomes 0xc2 0x80, and 0xff becomes 0xc3 0xbf.

Patch applied to 7.4, along with a further fix to handle a negative return
value from lo_read properly.  Thanks for the report and patch!

			regards, tom lane