domain.out

PostgreSQL7.4.6 for Linux

-- Test Comment / Drop
create domain domaindroptest int4;
comment on domain domaindroptest is 'About to drop this..';
-- currently this will be disallowed
create domain basetypetest domaindroptest;
ERROR:  "domaindroptest" is not a valid base type for a domain
drop domain domaindroptest;
-- this should fail because already gone
drop domain domaindroptest cascade;
ERROR:  type "domaindroptest" does not exist
-- TEST Domains.
create domain domainvarchar varchar(5);
create domain domainnumeric numeric(8,2);
create domain domainint4 int4;
create domain domaintext text;
-- Test explicit coercions --- these should succeed (and truncate)
SELECT cast('123456' as domainvarchar);
 domainvarchar 
---------------
 12345
(1 row)

SELECT cast('12345' as domainvarchar);
 domainvarchar 
---------------
 12345
(1 row)

-- Test tables using domains
create table basictest
           ( testint4 domainint4
           , testtext domaintext
           , testvarchar domainvarchar
           , testnumeric domainnumeric
           );
INSERT INTO basictest values ('88', 'haha', 'short', '123.12');      -- Good
INSERT INTO basictest values ('88', 'haha', 'short text', '123.12'); -- Bad varchar
ERROR:  value too long for type character varying(5)
INSERT INTO basictest values ('88', 'haha', 'short', '123.1212');    -- Truncate numeric
-- Test copy
COPY basictest (testvarchar) FROM stdin; -- fail
ERROR:  value too long for type character varying(5)
CONTEXT:  COPY basictest, line 1: "notsoshorttext"
COPY basictest (testvarchar) FROM stdin;
select * from basictest;
 testint4 | testtext | testvarchar | testnumeric 
----------+----------+-------------+-------------
       88 | haha     | short       |      123.12
       88 | haha     | short       |      123.12
          |          | short       |            
(3 rows)

-- check that domains inherit operations from base types
select testtext || testvarchar as concat, testnumeric + 42 as sum
from basictest;
  concat   |  sum   
-----------+--------
 hahashort | 165.12
 hahashort | 165.12
           |       
(3 rows)

drop table basictest;
drop domain domainvarchar restrict;
drop domain domainnumeric restrict;
drop domain domainint4 restrict;
drop domain domaintext;
-- Array Test
create domain domainint4arr int4[1];
create domain domaintextarr text[2][3];
create table domarrtest
           ( testint4arr domainint4arr
           , testtextarr domaintextarr
            );
INSERT INTO domarrtest values ('{2,2}', '{{"a","b"}{"c","d"}}');
INSERT INTO domarrtest values ('{{2,2}{2,2}}', '{{"a","b"}}');
INSERT INTO domarrtest values ('{2,2}', '{{"a","b"}{"c","d"}{"e"}}');
INSERT INTO domarrtest values ('{2,2}', '{{"a"}{"c"}}');
INSERT INTO domarrtest values (NULL, '{{"a","b"}{"c","d","e"}}');
select * from domarrtest;
  testint4arr  |     testtextarr     
---------------+---------------------
 {2,2}         | {{a,c},{"",d}}
 {{2,2},{0,2}} | {{a,b}}
 {2,2}         | {{a},{c},{e}}
 {2,2}         | {{c},{""}}
               | {{a,c,""},{"",d,e}}
(5 rows)

select testint4arr[1], testtextarr[2:2] from domarrtest;
 testint4arr | testtextarr 
-------------+-------------
           2 | {{"",d}}
             | 
           2 | {{c}}
           2 | {{""}}
             | {{"",d,e}}
(5 rows)

drop table domarrtest;
drop domain domainint4arr restrict;
drop domain domaintextarr restrict;
create domain dnotnull varchar(15) NOT NULL;
create domain dnull    varchar(15);
create domain dcheck   varchar(15) NOT NULL CHECK (VALUE = 'a' OR VALUE = 'c' OR VALUE = 'd');
create table nulltest
           ( col1 dnotnull
           , col2 dnotnull NULL  -- NOT NULL in the domain cannot be overridden
           , col3 dnull    NOT NULL
           , col4 dnull
           , col5 dcheck CHECK (col5 IN ('c', 'd'))
           );
INSERT INTO nulltest DEFAULT VALUES;
ERROR:  domain dnotnull does not allow null values
INSERT INTO nulltest values ('a', 'b', 'c', 'd', 'c');  -- Good
insert into nulltest values ('a', 'b', 'c', 'd', NULL);
ERROR:  domain dcheck does not allow null values
insert into nulltest values ('a', 'b', 'c', 'd', 'a');
ERROR:  new row for relation "nulltest" violates check constraint "nulltest_col5"
INSERT INTO nulltest values (NULL, 'b', 'c', 'd', 'd');
ERROR:  domain dnotnull does not allow null values
INSERT INTO nulltest values ('a', NULL, 'c', 'd', 'c');
ERROR:  domain dnotnull does not allow null values
INSERT INTO nulltest values ('a', 'b', NULL, 'd', 'c');
ERROR:  null value in column "col3" violates not-null constraint
INSERT INTO nulltest values ('a', 'b', 'c', NULL, 'd'); -- Good
-- Test copy
COPY nulltest FROM stdin; --fail
ERROR:  domain dcheck does not allow null values
CONTEXT:  COPY nulltest, line 1: "a	b	\N	d	\N"
-- Last row is bad
COPY nulltest FROM stdin;
ERROR:  new row for relation "nulltest" violates check constraint "nulltest_col5"
CONTEXT:  COPY nulltest, line 3: "a	b	c	\N	a"
select * from nulltest;
 col1 | col2 | col3 | col4 | col5 
------+------+------+------+------
 a    | b    | c    | d    | c
 a    | b    | c    |      | d
(2 rows)

-- Test out coerced (casted) constraints
SELECT cast('1' as dnotnull);
 dnotnull 
----------
 1
(1 row)

SELECT cast(NULL as dnotnull); -- fail
ERROR:  domain dnotnull does not allow null values
SELECT cast(cast(NULL as dnull) as dnotnull); -- fail
ERROR:  domain dnotnull does not allow null values
SELECT cast(col4 as dnotnull) from nulltest; -- fail
ERROR:  domain dnotnull does not allow null values
-- cleanup
drop table nulltest;
drop domain dnotnull restrict;
drop domain dnull restrict;
drop domain dcheck restrict;
create domain ddef1 int4 DEFAULT 3;
create domain ddef2 oid DEFAULT '12';
-- Type mixing, function returns int8
create domain ddef3 text DEFAULT 5;
create sequence ddef4_seq;
create domain ddef4 int4 DEFAULT nextval(cast('ddef4_seq' as text));
create domain ddef5 numeric(8,2) NOT NULL DEFAULT '12.12';
create table defaulttest
            ( col1 ddef1
            , col2 ddef2
            , col3 ddef3
            , col4 ddef4 PRIMARY KEY
            , col5 ddef1 NOT NULL DEFAULT NULL
            , col6 ddef2 DEFAULT '88'
            , col7 ddef4 DEFAULT 8000
            , col8 ddef5
            );
NOTICE:  CREATE TABLE / PRIMARY KEY will create implicit index "defaulttest_pkey" for table "defaulttest"
insert into defaulttest default values;
insert into defaulttest default values;
insert into defaulttest default values;
-- Test defaults with copy
COPY defaulttest(col5) FROM stdin;
select * from defaulttest;
 col1 | col2 | col3 | col4 | col5 | col6 | col7 | col8  
------+------+------+------+------+------+------+-------
    3 |   12 | 5    |    1 |    3 |   88 | 8000 | 12.12
    3 |   12 | 5    |    2 |    3 |   88 | 8000 | 12.12
    3 |   12 | 5    |    3 |    3 |   88 | 8000 | 12.12
    3 |   12 | 5    |    4 |   42 |   88 | 8000 | 12.12
(4 rows)

drop sequence ddef4_seq;
drop table defaulttest cascade;
-- Test ALTER DOMAIN .. NOT NULL
create domain dnotnulltest integer;
create table domnotnull
( col1 dnotnulltest
, col2 dnotnulltest
);
insert into domnotnull default values;
alter domain dnotnulltest set not null; -- fails
ERROR:  column "col1" of table "domnotnull" contains null values
update domnotnull set col1 = 5;
alter domain dnotnulltest set not null; -- fails
ERROR:  column "col2" of table "domnotnull" contains null values
update domnotnull set col2 = 6;
alter domain dnotnulltest set not null;
update domnotnull set col1 = null; -- fails
ERROR:  domain dnotnulltest does not allow null values
alter domain dnotnulltest drop not null;
update domnotnull set col1 = null;
drop domain dnotnulltest cascade;
NOTICE:  drop cascades to table domnotnull column col2
NOTICE:  drop cascades to table domnotnull column col1
-- Test ALTER DOMAIN .. DEFAULT ..
create table domdeftest (col1 ddef1);
insert into domdeftest default values;
select * from domdeftest;
 col1 
------
    3
(1 row)

alter domain ddef1 set default '42';
insert into domdeftest default values;
select * from domdeftest;
 col1 
------
    3
   42
(2 rows)

alter domain ddef1 drop default;
insert into domdeftest default values;
select * from domdeftest;
 col1 
------
    3
   42
     
(3 rows)

drop table domdeftest;
-- Test ALTER DOMAIN .. CONSTRAINT ..
create domain con as integer;
create table domcontest (col1 con);
insert into domcontest values (1);
insert into domcontest values (2);
alter domain con add constraint t check (VALUE < 1); -- fails
ERROR:  column "col1" of table "domcontest" contains values that violate the new constraint
alter domain con add constraint t check (VALUE < 34);
alter domain con add check (VALUE > 0);
insert into domcontest values (-5); -- fails
ERROR:  value for domain con violates check constraint "$1"
insert into domcontest values (42); -- fails
ERROR:  value for domain con violates check constraint "t"
insert into domcontest values (5);
alter domain con drop constraint t;
insert into domcontest values (-5); --fails
ERROR:  value for domain con violates check constraint "$1"
insert into domcontest values (42);
-- Confirm ALTER DOMAIN with RULES.
create table domtab (col1 integer);
create domain dom as integer;
create view domview as select cast(col1 as dom) from domtab;
insert into domtab (col1) values (null);
insert into domtab (col1) values (5);
select * from domview;
 col1 
------
     
    5
(2 rows)

alter domain dom set not null;
select * from domview; -- fail
ERROR:  domain dom does not allow null values
alter domain dom drop not null;
select * from domview;
 col1 
------
     
    5
(2 rows)

alter domain dom add constraint domchkgt6 check(value > 6);
select * from domview; --fail
ERROR:  value for domain dom violates check constraint "domchkgt6"
alter domain dom drop constraint domchkgt6 restrict;
select * from domview;
 col1 
------
     
    5
(2 rows)

-- cleanup
drop domain ddef1 restrict;
drop domain ddef2 restrict;
drop domain ddef3 restrict;
drop domain ddef4 restrict;
drop domain ddef5 restrict;