question about partitioning

Right now I am in the process of migrating an Oracle DB over to Postgres 
8.4.3.  The table is partitioned by size.  Is there anyway to partition 
the new postgres table by size?  I created some partitions for the new 
table, but I didn't give postgres any rules to partition by, so I have 
250M test records in one table.  Any ideas or thoughts on how to build 
the rules for the table by size would be greatly appreciated.

-- 
Joshua Gooding
Software Engineer
TTi Technologies Wheeling, WV 26003

w: 304-233-5680 x 308
c: 304-794-8341