text: drop table if exists funnel_test;
  
  create table funnel_test (timestamp UInt32, event UInt32) engine=Memory;
  insert into funnel_test values (0,1000),(1,1001),(2,1002),(3,1003),(4,1004),(5,1005),(6,1006),(7,1007),(8,1008);
  
  select 1 = windowFunnel(10000)(timestamp, event = 1000) from funnel_test;
  select 2 = windowFunnel(10000)(timestamp, event = 1000, event = 1001) from funnel_test;
  select 3 = windowFunnel(10000)(timestamp, event = 1000, event = 1001, event = 1002) from funnel_test;
  select 4 = windowFunnel(10000)(timestamp, event = 1000, event = 1001, event = 1002, event = 1008) from funnel_test;
  
  
  
  select 1 = windowFunnel(1)(timestamp, event = 1000) from funnel_test;
  select 3 = windowFunnel(2)(timestamp, event = 1003, event = 1004, event = 1005, event = 1006, event = 1007) from funnel_test;
  select 4 = windowFunnel(3)(timestamp, event = 1003, event = 1004, event = 1005, event = 1006, event = 1007) from funnel_test;
  select 5 = windowFunnel(4)(timestamp, event = 1003, event = 1004, event = 1005, event = 1006, event = 1007) from funnel_test;
  
  
  drop table if exists funnel_test2;
  create table funnel_test2 (uid UInt32 default 1,timestamp DateTime, event UInt32) engine=Memory;
  insert into funnel_test2(timestamp, event) values  ('2018-01-01 01:01:01',1001),('2018-01-01 01:01:02',1002),('2018-01-01 01:01:03',1003),('2018-01-01 01:01:04',1004),('2018-01-01 01:01:05',1005),('2018-01-01 01:01:06',1006),('2018-01-01 01:01:07',1007),('2018-01-01 01:01:08',1008);
  
  
  select 5 = windowFunnel(4)(timestamp, event = 1003, event = 1004, event = 1005, event = 1006, event = 1007) from funnel_test2;
  select 2 = windowFunnel(10000)(timestamp, event = 1001, event = 1008) from funnel_test2;
  select 1 = windowFunnel(10000)(timestamp, event = 1008, event = 1001) from funnel_test2;
  select 5 = windowFunnel(4)(timestamp, event = 1003, event = 1004, event = 1005, event = 1006, event = 1007) from funnel_test2;
  
  drop table funnel_test;
  drop table funnel_test2;
  