Pipelinedb: How to group stream data by each N minutes in continuous view

How to group data from pipelinedb's stream by each N minutes in continuous view select? Pipelinedb's stream gets data about the events that comes from a many remote hosts. I need to group this events by type, ip and time intervals in 5 minutes, for example, and count them. So on input I have (very roughly): CREATE STREAM event (ip varchar(15), type varchar(32)); CREATE CONTINUOUS VIEW AS SELECT ??? from event group by ??? etc...; INSET INTO event VALUES ('111.111.111.111', 'page_open'), -- 22:35 ('111.111.111.111', 'page_open'), -- 22:36 ('111.111.111.111', 'page_close '), -- 22:37 ('111.111.111.111', 'page_close'), -- 22:42 ('222.111.111.111', 'page_open '), -- 22:42 ('222.111.111.111', 'page_open'), -- 22:43 ('222.111.111.111', 'page_close'), -- 22:44 ('111.111.111.111', 'page_open') -- 22:44 ); arrival_timestamp | ip | type ------------------------------------------------ 22:35 | 111.111.111.111 | page_open -- new interaval, ends in 22:40 22:36 | 111.111.111.111 | page_open 22:37 | 111.111.111.111 | page_close 22:42 | 111.111.111.111 | page_close -- event comes in next interval, ends in 22:45 22:42 | 222.111.111.111 | page_open 22:43 | 222.111.111.111 | page_open 22:44 | 222.111.111.111 | page_close 22:44 | 111.111.111.111 | page_open And what must be in continuous view select: time | ip | type | count --------------------------------------------- 22:40 | 111.111.111.111 | page_open | 2 22:40 | 111.111.111.111 | page_close | 1 22:45 | 111.111.111.111 | page_open | 1 22:45 | 111.111.111.111 | page_close | 1 22:45 | 222.111.111.111 | page_open | 2 22:45 | 222.111.111.111 | page_close | 1 p.s. Sorry for my english