Thank you. It works perfect. Dianna
Tim Landscheidt < [email protected] > wrote: > If I understand the question correctly, try: > > | SELECT DISTINCT ON (consumer_id) consumer_id, move_date, history_timestamp > | FROM (SELECT consumer_id, move_date, history_timestamp, > | LAG(move_date) OVER (PARTITION BY consumer_id ORDER BY > consumer_id, history_timestamp) AS previous_move_date > | FROM consumer_hist) AS SubQuery > | WHERE move_date IS DISTINCT FROM previous_move_date > | ORDER BY consumer_id, history_timestamp DESC; > > Tim -- Sent via pgsql-sql mailing list ([email protected]) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-sql
