> q5 and q6 are too complex to discuss here, but the fundamental issue
> is the order in which postgres decides to do things.  The choice for
> me is clear: the developer time trying to figure out how to make the
> planner do the "obviously right thing" has been too high with
> postgres.  These tests demonstate to me that for even complex queries,
> oracle wins for our problem.
> It looks like we'll be migrating to oracle for this project from these
> preliminary results.  It's not just the planner problems.  The
> customer is more familiar with oracle, and the vacuum performance is
> another problem.

Hey, we can't win 'em all.   If we could, Larry would be circulating his 

I hope that you'll stay current with PostgreSQL developments so that you can 
do a similarly thourough evaluation for your next project.

-Josh Berkus
 Aglio Database Solutions
 San Francisco

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