Hi, I know that for condition like ((field1>value1) or (field1=value1 and field2>value2)) I could built index on (field1, field2) and use indexable condition like (field1, field2) > (value1, value2).
However, I have very tricky query which requires an indexable condition like (field1>value1) or (field1=value1 and field2<value2). I guess that I could use index definition like ON(field1, field2 DESC) however, I can not build query condition which would use that index effectively. Is it possible and my mind just went black on simple task? PS: field2 is varchar type so I couldn't using the negative values trick build index ON(field1, (-field2)) and write something like WHERE (field1, -field2) > (value1, -value2). -- Maxim Boguk Senior Postgresql DBA http://www.postgresql-consulting.ru/ <http://www.postgresql-consulting.com/> Phone RU: +7 910 405 4718 Phone AU: +61 45 218 5678 Skype: maxim.boguk Jabber: maxim.bo...@gmail.com МойКруг: http://mboguk.moikrug.ru/ "People problems are solved with people. If people cannot solve the problem, try technology. People will then wish they'd listened at the first stage."
