Thread: Errors in log file

I always encounter the following error in the log file.  Can anyone tell me
how to avoid this error?
I am running PostgresSQL 7.1.2.  Thanks for your help!

Log file content
============
2001-06-08 09:54:03 [99999]  DEBUG:  query: select * from tbl01 where fld01
= 'abc'
pg_recvbuf: unexpected EOF on client connection