insert.out

来自「postgresql8.3.4源码,开源数据库」· OUT 代码 · 共 58 行

--
-- insert with DEFAULT in the target_list
--
create table inserttest (col1 int4, col2 int4 NOT NULL, col3 text default 'testing');
insert into inserttest (col1, col2, col3) values (DEFAULT, DEFAULT, DEFAULT);
ERROR:  null value in column "col2" violates not-null constraint
insert into inserttest (col2, col3) values (3, DEFAULT);
insert into inserttest (col1, col2, col3) values (DEFAULT, 5, DEFAULT);
insert into inserttest values (DEFAULT, 5, 'test');
insert into inserttest values (DEFAULT, 7);
select * from inserttest;
 col1 | col2 |  col3   
------+------+---------
      |    3 | testing
      |    5 | testing
      |    5 | test
      |    7 | testing
(4 rows)

--
-- insert with similar expression / target_list values (all fail)
--
insert into inserttest (col1, col2, col3) values (DEFAULT, DEFAULT);
ERROR:  INSERT has more target columns than expressions
insert into inserttest (col1, col2, col3) values (1, 2);
ERROR:  INSERT has more target columns than expressions
insert into inserttest (col1) values (1, 2);
ERROR:  INSERT has more expressions than target columns
insert into inserttest (col1) values (DEFAULT, DEFAULT);
ERROR:  INSERT has more expressions than target columns
select * from inserttest;
 col1 | col2 |  col3   
------+------+---------
      |    3 | testing
      |    5 | testing
      |    5 | test
      |    7 | testing
(4 rows)

--
-- VALUES test
--
insert into inserttest values(10, 20, '40'), (-1, 2, DEFAULT),
    ((select 2), (select i from (values(3)) as foo (i)), 'values are fun!');
select * from inserttest;
 col1 | col2 |      col3       
------+------+-----------------
      |    3 | testing
      |    5 | testing
      |    5 | test
      |    7 | testing
   10 |   20 | 40
   -1 |    2 | testing
    2 |    3 | values are fun!
(7 rows)

drop table inserttest;