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From: Benoit Menendez <benoitm@pacbell.net>
To: pgsql-sql@postgresql.org
Subject: Problem with self-join updates...
Date: Tue, 19 Feb 2002 10:32:06 -0800
Message-ID: <002b01c1b973$bf48c740$0201a8c0@osprey> (raw)
References: <002101c1b650$18f087a0$0201a8c0@osprey>

Can someone please help?

    Benoit
  ----- Original Message ----- 
  From: Benoit Menendez 
  To: pgsql-sql@postgresql.org 
  Sent: Friday, February 15, 2002 10:39 AM
  Subject: [SQL] Problem with self-join updates...


  I have the following self-join update:

              update TABLE set PARENT_ID=parent.PARENT_ID
              from TABLE, TABLE parent
              where TABLE.PARENT_ID=parent.ID
              and parent.ID in (1,2,3,4)

  This query is use to update a hierarchy before deleting specific records...

  I get the following error:

      Table name "table" specified more than once

  This appears to be a limitation of the update syntax which is not documented...

  Is this something that will be fixed soon? or should I write this query differently?

  Any suggestions?

  Thanks for your help.

      Benoit

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  To: pgsql-sql@postgresql.org
  Cc: benoitm@pacbell.net
  Subject: Re: Problem with self-join updates...
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