DEBUG messages

Hi,

I've searched the docs., faqs and mailing lists for this but didn't find
anything.

Everytime I startup our postgres db, I get DEBUG messages as follows

DEBUG:  database system was shut down at 2001-11-28 16:35:55 PST
DEBUG:  CheckPoint record at (0, 2246696)
DEBUG:  Redo record at (0, 2246696); Undo record at (0, 0); Shutdown TRUE
DEBUG:  NextTransactionId: 753; NextOid: 19745
DEBUG:  database system is in production state

Can someone tell me how to display only ERROR messages?

Thanks,
sb

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