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Re: A problem in inheritance


  • From: Jim Nasby <decibel(at)decibel(dot)org>
  • To: Talha Khan <talha(dot)amjad(at)gmail(dot)com>
  • Cc: pgsql-general(at)postgresql(dot)org
  • Subject: Re: A problem in inheritance
  • Date: Fri, 22 Jun 2007 16:10:51 -0500
  • Message-id: <9500CE34-4019-40E1-9859-34243AEEC261(at)decibel(dot)org>

On Jun 20, 2007, at 12:53 PM, Talha Khan wrote:
THE ACTUAL TEST:

  DROP RULE account_login_no_update ON account_login;


  UPDATE account_login set originating_source = 'xxx';

Now the update should not effect the child table but it does, evident
  from the output of the following query:

That's because you dropped the rule that would have affected that query. Remember that rules effectively work on the query strings themselves, so to impact that update you'd have to have a rule on account_login. No rule on a child table will matter.
--
Jim Nasby                                            jim(at)nasby(dot)net
EnterpriseDB      http://enterprisedb.com      512.569.9461 (cell)





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