text: --create range partition table with int data type and one partition having maxvalue,then insert data to this table,then delete one record where the separated field value is null
  
  create table range_test(id int,
  				test_int int,
  				test_smallint smallint,
  				test_numeric numeric(38,10),
  				test_float float,
  				test_real real,
  				test_double double,
  				test_monetary monetary,
  				test_datetime timestamp, primary key(id,test_int))
  		PARTITION BY RANGE (test_int) (
  		PARTITION p0 VALUES LESS THAN MAXVALUE
  	);
  	insert into range_test values( 1,1,2,1.952491373,1.040967569,1.8889608756,1.438915955,1,'2007-01-01 09:00:00');
  	insert into range_test values( 2,2,3,2.102201596,2.448271838,2.309828743,2.862653912,2,'2007-01-01 09:00:00');
  	insert into range_test values( 3,3,4,3.500607386,3.2760446668,3.861596361,3.511043858,3,'2007-01-01 09:00:00');
  	insert into range_test values(9,NULL,NULL,NULL,NULL,NULL,NULL,NULL,'2007-01-01 09:00:00');
  delete from range_test  where test_int     is NULL;
  select * from range_test order by 1;
  
  
  drop table range_test;
  