perhaps this helps
http://www.webservertalk.com/archive308-2007-3-1836413.html
> -----Original Message-----
> From: pgsql-bugs-owner@postgresql.org
> [mailto:pgsql-bugs-owner@postgresql.org] On Behalf Of vha
> Sent: Sunday, February 10, 2008 7:55 PM
> To: pgsql-bugs@postgresql.org
> Subject: [BUGS] BUG #3951: SELECT ... WHERE Param = ? does
> not work if Param is of type bytea
>
>
> The following bug has been logged online:
>
> Bug reference: 3951
> Logged by: vha
> Email address: vincent_dhaene@hotmail.com
> PostgreSQL version: 8.3
> Operating system: Windows XP SP2
> Description: SELECT ... WHERE Param = ? does not work
> if Param is of
> type bytea
> Details:
>
> I have a table with one of the columns of type BYTEA
> containing GUIDs (16 bytes of data).
>
> The data of the column is specified using
> SQLBindParameter(hstmt, nCol, SQL_PARAM_INPUT, SQL_C_BINARY,
> SQL_BINARY, 16, 0, theGUID, 16, &ptr).
>
> This works fine to insert the data using "INSERT ... VALUES
> ?", but retrieving the data using "SELECT ... WHERE Param =
> ?" doesn't work: nothing is returned.
>
> Am I doing something wrong or is this a bug?
>
> BTW. This code works without any problem on MS SQL 2000, MS
> SQL 2005, Oracle and MySQL.
>
>
> vha
>
> ---------------------------(end of
> broadcast)---------------------------
> TIP 1: if posting/reading through Usenet, please send an appropriate
> subscribe-nomail command to majordomo@postgresql.org
> so that your
> message can get through to the mailing list cleanly
>
