logging statements from hibernate to valid SQL

Hi,
I'm trying to log statements that are being fired from hibernate, so that i can benchmark them without hibernate itself.
I want to fire the SQL at the database directly and see what difference i can make by tweaking things.

But when i set log_statement = 'all', the logging looks like this:

2010-02-09 00:12:32 CET LOG:  execute <unnamed>: select nextval ('schema.sequence')
2010-02-09 00:12:32 CET LOG:  execute <unnamed>: insert into schema.tabe (field1, field2, field3, ...) values ($1, $2, $3, ...)
2010-02-09 00:12:32 CET DETAIL:  parameters: $1 = '1', $2 = NULL, $3 = '654767', ...)

Now, how can i get these $1 etc values to be replaced with their values, so that i can produce valid SQL?
Is there a postgresql.conf setting, or maybe some perl script that goes around?
(of course, it's more than just 3 lines.... I can't do it by hand.)

thx!

WBL

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