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Re: broken 'SHOW TABLE'-like query works in 8, not 8.1.1


  • From: Michael Fuhr <mike(at)fuhr(dot)org>
  • To: Sebastian <buddhahead(at)gmail(dot)com>
  • Cc: pgsql-hackers(at)postgresql(dot)org
  • Subject: Re: broken 'SHOW TABLE'-like query works in 8, not 8.1.1
  • Date: Thu, 29 Dec 2005 13:59:48 -0700
  • Message-id: <20051229205948(dot)GA9702(at)winnie(dot)fuhr(dot)org>

On Thu, Dec 29, 2005 at 12:12:52PM -0800, Sebastian wrote:
> I've waited 10 minutes before cancelling. On pg8 it runs in less than a second

How many columns in the table?  In 8.1.1 I'm seeing a nearly
exponential increase in time with each extra column, at least up
to about five columns; with more columns the time continues to
increase although not as sharply.  I don't see such an increase in
8.0.5.  Querying the views individually doesn't take long; I wonder
if the planner is doing something wrong with the join operation.

-- 
Michael Fuhr



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