Selecting Directly into Files with ESQL/C ?

Does anyone have suggestions on how to transfer data from the database directly into a file. eg: buf="select <col> from <table> where <whatever>" EXEC SQL prepare id from :buf; EXEC SQL declare my_cursor cursor for id; EXEC SQL open my_cursor; EXEC SQL fetch fa_cursor into <file>. What I need is a way to unload a very large table into a file as quickly as possible. I'm using Informix SE 4.1 on an HP9000 897 running HP-UX 9.04. Any suggestions would be appreciated, Randall Courtney courtney@boi.hp.com