In response to "user100" <[EMAIL PROTECTED]>:
> 
> I just made a test between Postgres 7.4 (on a faster hardware) / MySQL 4.1
> (on a slower hardware) - and MySQL seems to be 5 time faster with baclua? Do
> you think Postgres 8 is faster than Postgres 7

Yes.  If you check various PostgreSQL list archives, you'll see that a LOT
of perf improvements have been made.  You should be running 8.1.4 if
you care about performance.

> (or MySQL) in use with bacula
> - or is there an easy way to tune Postgres to get close to MySQL speed?

Easy is a relative term.  There are plenty of docs on perf tuning
PostgreSQL.  Tuning PG is non-trivial, but definitely a task that
can be successfully accomplished.  Most PG packages that I've seen
are _not_ tuned for performance out of the box and require some
tweaking.  See 
http://www.postgresql.org/docs/8.1/interactive/runtime-config.html

Additionally, MySQL with MyISAM will _always_ be faster than PG, because
MyISAM doesn't support transactions.  The overhead of ensuring your data
is ACID slows things down a bit.  If you want to try to compare MySQL
to PostgreSQL, use InnoDB or BDB tables.

Also, ensure that you vacuum and analyze PostgreSQL databases frequently.
An occasional REINDEX helps as well.  These are normal maintenance
tasks for PostgreSQL.  ANALYZE is especially important right after
populating a new database.

-- 
Bill Moran
Collaborative Fusion Inc.

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