I am also wondering about the ordering and whether that matters. Can you have "he", "can", "drink" as well as "drink", "he", "can"and should they be considered the same? If so you will need a different tactic.
ordering matters. So the 3-column tactic should work. Thanks for your advice! ---------------------------(end of broadcast)--------------------------- TIP 3: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq