Hi Alban, I was wrong: i have only one column: tsrarnge. Which index can i create to use this statement fastly: ... AND timestamp <@ '[2016-12-27 00:00:00, 2016-12-31 00:00:00)'::tsrange Thank you again! /F -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general