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Re: quick ECPG doco change

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Philip Yarra <philip(at)utiba(dot)com>
Cc: pgsql-interfaces(at)postgresql(dot)org
Subject: Re: quick ECPG doco change
Date: 2003-11-30 03:34:28
Message-ID: 200311300334.hAU3YSR07437@candle.pha.pa.us (view raw or flat)
Thread:
Lists: pgsql-interfaces
Your patch has been added to the PostgreSQL unapplied patches list at:

	http://momjian.postgresql.org/cgi-bin/pgpatches

I will try to apply it within the next 48 hours.

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


Philip Yarra wrote:
> Hi, this doco patch is a quick one to add explicit mention of the need for the 
> AT clause in threaded ECPG applications. Does this sound okay?
> 
> Bruce, yes, I do intend to contribute more than this, but at least this will
> stop some confusion in the meantime.
> 
> Regards, Philip Yarra.
> 
> 
> Index: ecpg.sgml
> ===================================================================
> RCS file: /projects/cvsroot/pgsql-server/doc/src/sgml/ecpg.sgml,v
> retrieving revision 1.54
> diff -c -r1.54 ecpg.sgml
> *** ecpg.sgml   12 Nov 2003 22:47:47 -0000      1.54
> --- ecpg.sgml   18 Nov 2003 23:20:51 -0000
> ***************
> *** 353,358 ****
> --- 353,365 ----
>   </programlisting>
>      This option is particularly suitable if the application needs to
>      use several connections in mixed order.
> +       </para>
> +
> +       <para>
> +       If your application uses multiple threads of execution, they cannot
> share a
> +       connection concurrently. You must either explicitly control access to
> the connection
> +       (using mutexes) or use a connection for each thread. If each thread
> uses its own connection,
> +       you will need to use the AT clause to specify which connection the
> thread will use.
>     </para>
> 
>     <para>
> 
> -------------------------------------------------------
> 
> 
> ---------------------------(end of broadcast)---------------------------
> TIP 9: the planner will ignore your desire to choose an index scan if your
>       joining column's datatypes do not match
> 

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman(at)candle(dot)pha(dot)pa(dot)us               |  (610) 359-1001
  +  If your life is a hard drive,     |  13 Roberts Road
  +  Christ can be your backup.        |  Newtown Square, Pennsylvania 19073

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