text: --
  -- TIME
  --
  
  CREATE TABLE TIME_TBL (f1 time(2));
  
  INSERT INTO TIME_TBL VALUES ('00:00');
  INSERT INTO TIME_TBL VALUES ('01:00');
  -- as of 7.4, timezone spec should be accepted and ignored
  INSERT INTO TIME_TBL VALUES ('02:03 PST');
  INSERT INTO TIME_TBL VALUES ('11:59 EDT');
  INSERT INTO TIME_TBL VALUES ('12:00');
  INSERT INTO TIME_TBL VALUES ('12:01');
  INSERT INTO TIME_TBL VALUES ('23:59');
  INSERT INTO TIME_TBL VALUES ('11:59:59.99 PM');
  
  INSERT INTO TIME_TBL VALUES ('2003-03-07 15:36:39 America/New_York');
  INSERT INTO TIME_TBL VALUES ('2003-07-07 15:36:39 America/New_York');
  -- this should fail (the timezone offset is not known)
  INSERT INTO TIME_TBL VALUES ('15:36:39 America/New_York');
  
  
  SELECT f1 AS "Time" FROM TIME_TBL ORDER BY f1;
  
  SELECT f1 AS "Three" FROM TIME_TBL WHERE f1 < '05:06:07' ORDER BY f1;
  
  SELECT f1 AS "Five" FROM TIME_TBL WHERE f1 > '05:06:07' ORDER BY f1;
  
  SELECT f1 AS "None" FROM TIME_TBL WHERE f1 < '00:00' ORDER BY f1;
  
  SELECT f1 AS "Eight" FROM TIME_TBL WHERE f1 >= '00:00' ORDER BY f1;
  
  --
  -- TIME simple math
  --
  -- We now make a distinction between time and intervals,
  -- and adding two times together makes no sense at all.
  -- Leave in one query to show that it is rejected,
  -- and do the rest of the testing in horology.sql
  -- where we do mixed-type arithmetic. - thomas 2000-12-02
  
  SELECT f1 + time '00:01' AS "Illegal" FROM TIME_TBL ORDER BY f1;
  
  
  --test now(), expect now() in transaction block keep a const value crossing node.
  create table tbl_now_cross_node(i int, t timestamp) distribute by shard(i);
  
  --we are sure that distribute key i with value 1 and 3 would be scattered on different nodes.
  --expect select get nothing
  begin;
  insert into tbl_now_cross_node values(1, now());
  insert into tbl_now_cross_node values(3, now());
  
  select * from tbl_now_cross_node t1, tbl_now_cross_node t2 where t1.t <> t2.t;
  
  insert into tbl_now_cross_node values(1, now());
  insert into tbl_now_cross_node values(3, now());
  select * from tbl_now_cross_node t1, tbl_now_cross_node t2 where t1.t <> t2.t;
  --make sure there are record in the table.
  select i from tbl_now_cross_node order by i;
  abort;
  drop table tbl_now_cross_node;
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  