> i have 11 columns total. column 1, 2, 3, 4, 5 and 6 > are NOT NULL. the rest can be null and, in the case > of the imported data set, are null. From: http://www.postgresql.org/docs/8.1/interactive/sql-copy.html COPY tablename ( column [, ...] ) FROM 'filename' WITH NULL AS 'null string' ;