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


  • From: Larry Rosenman <Larry(dot)Rosenman(at)pervasive(dot)com>
  • To: Michael Fuhr <mike(at)fuhr(dot)org>
  • Cc: Sebastian <buddhahead(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org
  • Subject: Re: broken 'SHOW TABLE'-like query works in 8, not 8.1.1
  • Date: 29 Dec 2005 15:15:01 -0600
  • Message-id: <E1Es56z-0005n7-Am(at)lerami(dot)lerctr(dot)org>

On Dec 29 2005, Michael Fuhr wrote:

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.


For clarification, I'm the 4.11-FreeBSD guy refered to above, and with a very simple table, it comes right back with NO results, but I may not have what it's looking for in the table definition.

I **DO** get the explain failure, which seems, to me, to be a bug. :(

LER

--
Larry Rosenman, Database Support Engineer, E-Mail: Larry(dot)Rosenman(at)pervasive(dot)com Pervasive Software, 12365B Riata Trace Parkway, Austin, TX 78727 Office: 512-231-6173




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