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|
--
-- Test domains.
--
-- Test Comment / Drop
create domain domaindroptest int4;
comment on domain domaindroptest is 'About to drop this..';
create domain dependenttypetest domaindroptest;
-- fail because of dependent type
drop domain domaindroptest;
ERROR: cannot drop type domaindroptest because other objects depend on it
DETAIL: type dependenttypetest depends on type domaindroptest
HINT: Use DROP ... CASCADE to drop the dependent objects too.
drop domain domaindroptest cascade;
NOTICE: drop cascades to type dependenttypetest
-- this should fail because already gone
drop domain domaindroptest cascade;
ERROR: type "domaindroptest" does not exist
-- Test domain input.
-- Note: the point of checking both INSERT and COPY FROM is that INSERT
-- exercises CoerceToDomain while COPY exercises domain_in.
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, column testvarchar: "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)
-- check that union/case/coalesce type resolution handles domains properly
select pg_typeof(coalesce(4::domainint4, 7));
pg_typeof
-----------
integer
(1 row)
select pg_typeof(coalesce(4::domainint4, 7::domainint4));
pg_typeof
------------
domainint4
(1 row)
drop table basictest;
drop domain domainvarchar restrict;
drop domain domainnumeric restrict;
drop domain domainint4 restrict;
drop domain domaintext;
-- Test domains over array types
create domain domainint4arr int4[1];
create domain domainchar4arr varchar(4)[2][3];
create table domarrtest
( testint4arr domainint4arr
, testchar4arr domainchar4arr
);
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","f"}}');
INSERT INTO domarrtest values ('{2,2}', '{{"a"},{"c"}}');
INSERT INTO domarrtest values (NULL, '{{"a","b","c"},{"d","e","f"}}');
INSERT INTO domarrtest values (NULL, '{{"toolong","b","c"},{"d","e","f"}}');
ERROR: value too long for type character varying(4)
INSERT INTO domarrtest (testint4arr[1], testint4arr[3]) values (11,22);
select * from domarrtest;
testint4arr | testchar4arr
---------------+---------------------
{2,2} | {{a,b},{c,d}}
{{2,2},{2,2}} | {{a,b}}
{2,2} | {{a,b},{c,d},{e,f}}
{2,2} | {{a},{c}}
| {{a,b,c},{d,e,f}}
{11,NULL,22} |
(6 rows)
select testint4arr[1], testchar4arr[2:2] from domarrtest;
testint4arr | testchar4arr
-------------+--------------
2 | {{c,d}}
| {}
2 | {{c,d}}
2 | {{c}}
| {{d,e,f}}
11 |
(6 rows)
select array_dims(testint4arr), array_dims(testchar4arr) from domarrtest;
array_dims | array_dims
------------+------------
[1:2] | [1:2][1:2]
[1:2][1:2] | [1:1][1:2]
[1:2] | [1:3][1:2]
[1:2] | [1:2][1:1]
| [1:2][1:3]
[1:3] |
(6 rows)
COPY domarrtest FROM stdin;
COPY domarrtest FROM stdin; -- fail
ERROR: value too long for type character varying(4)
CONTEXT: COPY domarrtest, line 1, column testchar4arr: "{qwerty,w,e}"
select * from domarrtest;
testint4arr | testchar4arr
---------------+---------------------
{2,2} | {{a,b},{c,d}}
{{2,2},{2,2}} | {{a,b}}
{2,2} | {{a,b},{c,d},{e,f}}
{2,2} | {{a},{c}}
| {{a,b,c},{d,e,f}}
{11,NULL,22} |
{3,4} | {q,w,e}
|
(8 rows)
update domarrtest set
testint4arr[1] = testint4arr[1] + 1,
testint4arr[3] = testint4arr[3] - 1
where testchar4arr is null;
select * from domarrtest where testchar4arr is null;
testint4arr | testchar4arr
------------------+--------------
{12,NULL,21} |
{NULL,NULL,NULL} |
(2 rows)
drop table domarrtest;
drop domain domainint4arr restrict;
drop domain domainchar4arr restrict;
create domain dia as int[];
select '{1,2,3}'::dia;
dia
---------
{1,2,3}
(1 row)
select array_dims('{1,2,3}'::dia);
array_dims
------------
[1:3]
(1 row)
select pg_typeof('{1,2,3}'::dia);
pg_typeof
-----------
dia
(1 row)
select pg_typeof('{1,2,3}'::dia || 42); -- should be int[] not dia
pg_typeof
-----------
integer[]
(1 row)
drop domain dia;
-- Test domains over composites
create type comptype as (r float8, i float8);
create domain dcomptype as comptype;
create table dcomptable (d1 dcomptype unique);
insert into dcomptable values (row(1,2)::dcomptype);
insert into dcomptable values (row(3,4)::comptype);
insert into dcomptable values (row(1,2)::dcomptype); -- fail on uniqueness
ERROR: duplicate key value violates unique constraint "dcomptable_d1_key"
DETAIL: Key (d1)=((1,2)) already exists.
insert into dcomptable (d1.r) values(11);
select * from dcomptable;
d1
-------
(1,2)
(3,4)
(11,)
(3 rows)
select (d1).r, (d1).i, (d1).* from dcomptable;
r | i | r | i
----+---+----+---
1 | 2 | 1 | 2
3 | 4 | 3 | 4
11 | | 11 |
(3 rows)
update dcomptable set d1.r = (d1).r + 1 where (d1).i > 0;
select * from dcomptable;
d1
-------
(11,)
(2,2)
(4,4)
(3 rows)
alter domain dcomptype add constraint c1 check ((value).r <= (value).i);
alter domain dcomptype add constraint c2 check ((value).r > (value).i); -- fail
ERROR: column "d1" of table "dcomptable" contains values that violate the new constraint
select row(2,1)::dcomptype; -- fail
ERROR: value for domain dcomptype violates check constraint "c1"
insert into dcomptable values (row(1,2)::comptype);
insert into dcomptable values (row(2,1)::comptype); -- fail
ERROR: value for domain dcomptype violates check constraint "c1"
insert into dcomptable (d1.r) values(99);
insert into dcomptable (d1.r, d1.i) values(99, 100);
insert into dcomptable (d1.r, d1.i) values(100, 99); -- fail
ERROR: value for domain dcomptype violates check constraint "c1"
update dcomptable set d1.r = (d1).r + 1 where (d1).i > 0; -- fail
ERROR: value for domain dcomptype violates check constraint "c1"
update dcomptable set d1.r = (d1).r - 1, d1.i = (d1).i + 1 where (d1).i > 0;
select * from dcomptable;
d1
----------
(11,)
(99,)
(1,3)
(3,5)
(0,3)
(98,101)
(6 rows)
explain (verbose, costs off)
update dcomptable set d1.r = (d1).r - 1, d1.i = (d1).i + 1 where (d1).i > 0;
QUERY PLAN
-----------------------------------------------------------------------------------------------
Update on public.dcomptable
-> Seq Scan on public.dcomptable
Output: ROW(((d1).r - '1'::double precision), ((d1).i + '1'::double precision)), ctid
Filter: ((dcomptable.d1).i > '0'::double precision)
(4 rows)
create rule silly as on delete to dcomptable do instead
update dcomptable set d1.r = (d1).r - 1, d1.i = (d1).i + 1 where (d1).i > 0;
\d+ dcomptable
Table "public.dcomptable"
Column | Type | Collation | Nullable | Default | Storage | Stats target | Description
--------+-----------+-----------+----------+---------+----------+--------------+-------------
d1 | dcomptype | | | | extended | |
Indexes:
"dcomptable_d1_key" UNIQUE CONSTRAINT, btree (d1)
Rules:
silly AS
ON DELETE TO dcomptable DO INSTEAD UPDATE dcomptable SET d1.r = (dcomptable.d1).r - 1::double precision, d1.i = (dcomptable.d1).i + 1::double precision
WHERE (dcomptable.d1).i > 0::double precision
create function makedcomp(r float8, i float8) returns dcomptype
as 'select row(r, i)' language sql;
select makedcomp(1,2);
makedcomp
-----------
(1,2)
(1 row)
select makedcomp(2,1); -- fail
ERROR: value for domain dcomptype violates check constraint "c1"
select * from makedcomp(1,2) m;
r | i
---+---
1 | 2
(1 row)
select m, m is not null from makedcomp(1,2) m;
m | ?column?
-------+----------
(1,2) | t
(1 row)
drop function makedcomp(float8, float8);
drop table dcomptable;
drop type comptype cascade;
NOTICE: drop cascades to type dcomptype
-- check altering and dropping columns used by domain constraints
create type comptype as (r float8, i float8);
create domain dcomptype as comptype;
alter domain dcomptype add constraint c1 check ((value).r > 0);
comment on constraint c1 on domain dcomptype is 'random commentary';
select row(0,1)::dcomptype; -- fail
ERROR: value for domain dcomptype violates check constraint "c1"
alter type comptype alter attribute r type varchar; -- fail
ERROR: operator does not exist: character varying > double precision
HINT: No operator matches the given name and argument types. You might need to add explicit type casts.
alter type comptype alter attribute r type bigint;
alter type comptype drop attribute r; -- fail
ERROR: cannot drop column r of composite type comptype because other objects depend on it
DETAIL: constraint c1 depends on column r of composite type comptype
HINT: Use DROP ... CASCADE to drop the dependent objects too.
alter type comptype drop attribute i;
select conname, obj_description(oid, 'pg_constraint') from pg_constraint
where contypid = 'dcomptype'::regtype; -- check comment is still there
conname | obj_description
---------+-------------------
c1 | random commentary
(1 row)
drop type comptype cascade;
NOTICE: drop cascades to type dcomptype
-- Test domains over arrays of composite
create type comptype as (r float8, i float8);
create domain dcomptypea as comptype[];
create table dcomptable (d1 dcomptypea unique);
insert into dcomptable values (array[row(1,2)]::dcomptypea);
insert into dcomptable values (array[row(3,4), row(5,6)]::comptype[]);
insert into dcomptable values (array[row(7,8)::comptype, row(9,10)::comptype]);
insert into dcomptable values (array[row(1,2)]::dcomptypea); -- fail on uniqueness
ERROR: duplicate key value violates unique constraint "dcomptable_d1_key"
DETAIL: Key (d1)=({"(1,2)"}) already exists.
insert into dcomptable (d1[1]) values(row(9,10));
insert into dcomptable (d1[1].r) values(11);
select * from dcomptable;
d1
--------------------
{"(1,2)"}
{"(3,4)","(5,6)"}
{"(7,8)","(9,10)"}
{"(9,10)"}
{"(11,)"}
(5 rows)
select d1[2], d1[1].r, d1[1].i from dcomptable;
d1 | r | i
--------+----+----
| 1 | 2
(5,6) | 3 | 4
(9,10) | 7 | 8
| 9 | 10
| 11 |
(5 rows)
update dcomptable set d1[2] = row(d1[2].i, d1[2].r);
select * from dcomptable;
d1
--------------------
{"(1,2)","(,)"}
{"(3,4)","(6,5)"}
{"(7,8)","(10,9)"}
{"(9,10)","(,)"}
{"(11,)","(,)"}
(5 rows)
update dcomptable set d1[1].r = d1[1].r + 1 where d1[1].i > 0;
select * from dcomptable;
d1
--------------------
{"(11,)","(,)"}
{"(2,2)","(,)"}
{"(4,4)","(6,5)"}
{"(8,8)","(10,9)"}
{"(10,10)","(,)"}
(5 rows)
alter domain dcomptypea add constraint c1 check (value[1].r <= value[1].i);
alter domain dcomptypea add constraint c2 check (value[1].r > value[1].i); -- fail
ERROR: column "d1" of table "dcomptable" contains values that violate the new constraint
select array[row(2,1)]::dcomptypea; -- fail
ERROR: value for domain dcomptypea violates check constraint "c1"
insert into dcomptable values (array[row(1,2)]::comptype[]);
insert into dcomptable values (array[row(2,1)]::comptype[]); -- fail
ERROR: value for domain dcomptypea violates check constraint "c1"
insert into dcomptable (d1[1].r) values(99);
insert into dcomptable (d1[1].r, d1[1].i) values(99, 100);
insert into dcomptable (d1[1].r, d1[1].i) values(100, 99); -- fail
ERROR: value for domain dcomptypea violates check constraint "c1"
update dcomptable set d1[1].r = d1[1].r + 1 where d1[1].i > 0; -- fail
ERROR: value for domain dcomptypea violates check constraint "c1"
update dcomptable set d1[1].r = d1[1].r - 1, d1[1].i = d1[1].i + 1
where d1[1].i > 0;
select * from dcomptable;
d1
--------------------
{"(11,)","(,)"}
{"(99,)"}
{"(1,3)","(,)"}
{"(3,5)","(6,5)"}
{"(7,9)","(10,9)"}
{"(9,11)","(,)"}
{"(0,3)"}
{"(98,101)"}
(8 rows)
explain (verbose, costs off)
update dcomptable set d1[1].r = d1[1].r - 1, d1[1].i = d1[1].i + 1
where d1[1].i > 0;
QUERY PLAN
----------------------------------------------------------------------------------------------------------------
Update on public.dcomptable
-> Seq Scan on public.dcomptable
Output: (d1[1].r := (d1[1].r - '1'::double precision))[1].i := (d1[1].i + '1'::double precision), ctid
Filter: (dcomptable.d1[1].i > '0'::double precision)
(4 rows)
create rule silly as on delete to dcomptable do instead
update dcomptable set d1[1].r = d1[1].r - 1, d1[1].i = d1[1].i + 1
where d1[1].i > 0;
\d+ dcomptable
Table "public.dcomptable"
Column | Type | Collation | Nullable | Default | Storage | Stats target | Description
--------+------------+-----------+----------+---------+----------+--------------+-------------
d1 | dcomptypea | | | | extended | |
Indexes:
"dcomptable_d1_key" UNIQUE CONSTRAINT, btree (d1)
Rules:
silly AS
ON DELETE TO dcomptable DO INSTEAD UPDATE dcomptable SET d1[1].r = dcomptable.d1[1].r - 1::double precision, d1[1].i = dcomptable.d1[1].i + 1::double precision
WHERE dcomptable.d1[1].i > 0::double precision
drop table dcomptable;
drop type comptype cascade;
NOTICE: drop cascades to type dcomptypea
-- Test arrays over domains
create domain posint as int check (value > 0);
create table pitable (f1 posint[]);
insert into pitable values(array[42]);
insert into pitable values(array[-1]); -- fail
ERROR: value for domain posint violates check constraint "posint_check"
insert into pitable values('{0}'); -- fail
ERROR: value for domain posint violates check constraint "posint_check"
LINE 1: insert into pitable values('{0}');
^
update pitable set f1[1] = f1[1] + 1;
update pitable set f1[1] = 0; -- fail
ERROR: value for domain posint violates check constraint "posint_check"
select * from pitable;
f1
------
{43}
(1 row)
drop table pitable;
create domain vc4 as varchar(4);
create table vc4table (f1 vc4[]);
insert into vc4table values(array['too long']); -- fail
ERROR: value too long for type character varying(4)
insert into vc4table values(array['too long']::vc4[]); -- cast truncates
select * from vc4table;
f1
----------
{"too "}
(1 row)
drop table vc4table;
drop type vc4;
-- You can sort of fake arrays-of-arrays by putting a domain in between
create domain dposinta as posint[];
create table dposintatable (f1 dposinta[]);
insert into dposintatable values(array[array[42]]); -- fail
ERROR: column "f1" is of type dposinta[] but expression is of type integer[]
LINE 1: insert into dposintatable values(array[array[42]]);
^
HINT: You will need to rewrite or cast the expression.
insert into dposintatable values(array[array[42]::posint[]]); -- still fail
ERROR: column "f1" is of type dposinta[] but expression is of type posint[]
LINE 1: insert into dposintatable values(array[array[42]::posint[]])...
^
HINT: You will need to rewrite or cast the expression.
insert into dposintatable values(array[array[42]::dposinta]); -- but this works
select f1, f1[1], (f1[1])[1] from dposintatable;
f1 | f1 | f1
----------+------+----
{"{42}"} | {42} | 42
(1 row)
select pg_typeof(f1) from dposintatable;
pg_typeof
------------
dposinta[]
(1 row)
select pg_typeof(f1[1]) from dposintatable;
pg_typeof
-----------
dposinta
(1 row)
select pg_typeof(f1[1][1]) from dposintatable;
pg_typeof
-----------
dposinta
(1 row)
select pg_typeof((f1[1])[1]) from dposintatable;
pg_typeof
-----------
posint
(1 row)
update dposintatable set f1[2] = array[99];
select f1, f1[1], (f1[2])[1] from dposintatable;
f1 | f1 | f1
-----------------+------+----
{"{42}","{99}"} | {42} | 99
(1 row)
-- it'd be nice if you could do something like this, but for now you can't:
update dposintatable set f1[2][1] = array[97];
ERROR: wrong number of array subscripts
-- maybe someday we can make this syntax work:
update dposintatable set (f1[2])[1] = array[98];
ERROR: syntax error at or near "["
LINE 1: update dposintatable set (f1[2])[1] = array[98];
^
drop table dposintatable;
drop domain posint cascade;
NOTICE: drop cascades to type dposinta
-- Test arrays over domains of composite
create type comptype as (cf1 int, cf2 int);
create domain dcomptype as comptype check ((value).cf1 > 0);
create table dcomptable (f1 dcomptype[]);
insert into dcomptable values (null);
update dcomptable set f1[1].cf2 = 5;
table dcomptable;
f1
----------
{"(,5)"}
(1 row)
update dcomptable set f1[1].cf1 = -1; -- fail
ERROR: value for domain dcomptype violates check constraint "dcomptype_check"
update dcomptable set f1[1].cf1 = 1;
table dcomptable;
f1
-----------
{"(1,5)"}
(1 row)
-- if there's no constraints, a different code path is taken:
alter domain dcomptype drop constraint dcomptype_check;
update dcomptable set f1[1].cf1 = -1; -- now ok
table dcomptable;
f1
------------
{"(-1,5)"}
(1 row)
drop table dcomptable;
drop type comptype cascade;
NOTICE: drop cascades to type dcomptype
-- Test not-null restrictions
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_check"
DETAIL: Failing row contains (a, b, c, d, a).
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" of relation "nulltest" violates not-null constraint
DETAIL: Failing row contains (a, b, null, d, c).
INSERT INTO nulltest values ('a', 'b', 'c', NULL, 'd'); -- Good
-- Test copy
COPY nulltest FROM stdin; --fail
ERROR: null value in column "col3" of relation "nulltest" violates not-null constraint
DETAIL: Failing row contains (a, b, null, d, d).
CONTEXT: COPY nulltest, line 1: "a b \N d d"
COPY nulltest FROM stdin; --fail
ERROR: domain dcheck does not allow null values
CONTEXT: COPY nulltest, line 1, column col5: null input
-- Last row is bad
COPY nulltest FROM stdin;
ERROR: new row for relation "nulltest" violates check constraint "nulltest_col5_check"
DETAIL: Failing row contains (a, b, c, null, a).
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('ddef4_seq');
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
);
insert into defaulttest(col4) values(0); -- fails, col5 defaults to null
ERROR: null value in column "col5" of relation "defaulttest" violates not-null constraint
DETAIL: Failing row contains (3, 12, 5, 0, null, 88, 8000, 12.12).
alter table defaulttest alter column col5 drop default;
insert into defaulttest default values; -- succeeds, inserts domain default
-- We used to treat SET DEFAULT NULL as equivalent to DROP DEFAULT; wrong
alter table defaulttest alter column col5 set default null;
insert into defaulttest(col4) values(0); -- fails
ERROR: null value in column "col5" of relation "defaulttest" violates not-null constraint
DETAIL: Failing row contains (3, 12, 5, 0, null, 88, 8000, 12.12).
alter table defaulttest alter column col5 drop default;
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 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 2 other objects
DETAIL: drop cascades to column col2 of table domnotnull
drop cascades to column col1 of table domnotnull
-- 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 "con_check"
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 "con_check"
insert into domcontest values (42);
alter domain con drop constraint nonexistent;
ERROR: constraint "nonexistent" of domain "con" does not exist
alter domain con drop constraint if exists nonexistent;
NOTICE: constraint "nonexistent" of domain "con" does not exist, skipping
-- Test ALTER DOMAIN .. CONSTRAINT .. NOT VALID
create domain things AS INT;
CREATE TABLE thethings (stuff things);
INSERT INTO thethings (stuff) VALUES (55);
ALTER DOMAIN things ADD CONSTRAINT meow CHECK (VALUE < 11);
ERROR: column "stuff" of table "thethings" contains values that violate the new constraint
ALTER DOMAIN things ADD CONSTRAINT meow CHECK (VALUE < 11) NOT VALID;
ALTER DOMAIN things VALIDATE CONSTRAINT meow;
ERROR: column "stuff" of table "thethings" contains values that violate the new constraint
UPDATE thethings SET stuff = 10;
ALTER DOMAIN things VALIDATE CONSTRAINT meow;
-- 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;
drop sequence ddef4_seq;
-- Test domains over domains
create domain vchar4 varchar(4);
create domain dinter vchar4 check (substring(VALUE, 1, 1) = 'x');
create domain dtop dinter check (substring(VALUE, 2, 1) = '1');
select 'x123'::dtop;
dtop
------
x123
(1 row)
select 'x1234'::dtop; -- explicit coercion should truncate
dtop
------
x123
(1 row)
select 'y1234'::dtop; -- fail
ERROR: value for domain dtop violates check constraint "dinter_check"
select 'y123'::dtop; -- fail
ERROR: value for domain dtop violates check constraint "dinter_check"
select 'yz23'::dtop; -- fail
ERROR: value for domain dtop violates check constraint "dinter_check"
select 'xz23'::dtop; -- fail
ERROR: value for domain dtop violates check constraint "dtop_check"
create temp table dtest(f1 dtop);
insert into dtest values('x123');
insert into dtest values('x1234'); -- fail, implicit coercion
ERROR: value too long for type character varying(4)
insert into dtest values('y1234'); -- fail, implicit coercion
ERROR: value too long for type character varying(4)
insert into dtest values('y123'); -- fail
ERROR: value for domain dtop violates check constraint "dinter_check"
insert into dtest values('yz23'); -- fail
ERROR: value for domain dtop violates check constraint "dinter_check"
insert into dtest values('xz23'); -- fail
ERROR: value for domain dtop violates check constraint "dtop_check"
drop table dtest;
drop domain vchar4 cascade;
NOTICE: drop cascades to 2 other objects
DETAIL: drop cascades to type dinter
drop cascades to type dtop
-- Make sure that constraints of newly-added domain columns are
-- enforced correctly, even if there's no default value for the new
-- column. Per bug #1433
create domain str_domain as text not null;
create table domain_test (a int, b int);
insert into domain_test values (1, 2);
insert into domain_test values (1, 2);
-- should fail
alter table domain_test add column c str_domain;
ERROR: domain str_domain does not allow null values
create domain str_domain2 as text check (value <> 'foo') default 'foo';
-- should fail
alter table domain_test add column d str_domain2;
ERROR: value for domain str_domain2 violates check constraint "str_domain2_check"
-- Check that domain constraints on prepared statement parameters of
-- unknown type are enforced correctly.
create domain pos_int as int4 check (value > 0) not null;
prepare s1 as select $1::pos_int = 10 as "is_ten";
execute s1(10);
is_ten
--------
t
(1 row)
execute s1(0); -- should fail
ERROR: value for domain pos_int violates check constraint "pos_int_check"
execute s1(NULL); -- should fail
ERROR: domain pos_int does not allow null values
-- Check that domain constraints on plpgsql function parameters, results,
-- and local variables are enforced correctly.
create function doubledecrement(p1 pos_int) returns pos_int as $$
declare v pos_int;
begin
return p1;
end$$ language plpgsql;
select doubledecrement(3); -- fail because of implicit null assignment
ERROR: domain pos_int does not allow null values
CONTEXT: PL/pgSQL function doubledecrement(pos_int) line 2 during statement block local variable initialization
create or replace function doubledecrement(p1 pos_int) returns pos_int as $$
declare v pos_int := 0;
begin
return p1;
end$$ language plpgsql;
select doubledecrement(3); -- fail at initialization assignment
ERROR: value for domain pos_int violates check constraint "pos_int_check"
CONTEXT: PL/pgSQL function doubledecrement(pos_int) line 2 during statement block local variable initialization
create or replace function doubledecrement(p1 pos_int) returns pos_int as $$
declare v pos_int := 1;
begin
v := p1 - 1;
return v - 1;
end$$ language plpgsql;
select doubledecrement(null); -- fail before call
ERROR: domain pos_int does not allow null values
select doubledecrement(0); -- fail before call
ERROR: value for domain pos_int violates check constraint "pos_int_check"
select doubledecrement(1); -- fail at assignment to v
ERROR: value for domain pos_int violates check constraint "pos_int_check"
CONTEXT: PL/pgSQL function doubledecrement(pos_int) line 4 at assignment
select doubledecrement(2); -- fail at return
ERROR: value for domain pos_int violates check constraint "pos_int_check"
CONTEXT: PL/pgSQL function doubledecrement(pos_int) while casting return value to function's return type
select doubledecrement(3); -- good
doubledecrement
-----------------
1
(1 row)
-- Check that ALTER DOMAIN tests columns of derived types
create domain posint as int4;
-- Currently, this doesn't work for composite types, but verify it complains
create type ddtest1 as (f1 posint);
create table ddtest2(f1 ddtest1);
insert into ddtest2 values(row(-1));
alter domain posint add constraint c1 check(value >= 0);
ERROR: cannot alter type "posint" because column "ddtest2.f1" uses it
drop table ddtest2;
-- Likewise for domains within arrays of composite
create table ddtest2(f1 ddtest1[]);
insert into ddtest2 values('{(-1)}');
alter domain posint add constraint c1 check(value >= 0);
ERROR: cannot alter type "posint" because column "ddtest2.f1" uses it
drop table ddtest2;
-- Likewise for domains within domains over composite
create domain ddtest1d as ddtest1;
create table ddtest2(f1 ddtest1d);
insert into ddtest2 values('(-1)');
alter domain posint add constraint c1 check(value >= 0);
ERROR: cannot alter type "posint" because column "ddtest2.f1" uses it
drop table ddtest2;
drop domain ddtest1d;
-- Likewise for domains within domains over array of composite
create domain ddtest1d as ddtest1[];
create table ddtest2(f1 ddtest1d);
insert into ddtest2 values('{(-1)}');
alter domain posint add constraint c1 check(value >= 0);
ERROR: cannot alter type "posint" because column "ddtest2.f1" uses it
drop table ddtest2;
drop domain ddtest1d;
-- Doesn't work for ranges, either
create type rposint as range (subtype = posint);
create table ddtest2(f1 rposint);
insert into ddtest2 values('(-1,3]');
alter domain posint add constraint c1 check(value >= 0);
ERROR: cannot alter type "posint" because column "ddtest2.f1" uses it
drop table ddtest2;
drop type rposint;
alter domain posint add constraint c1 check(value >= 0);
create domain posint2 as posint check (value % 2 = 0);
create table ddtest2(f1 posint2);
insert into ddtest2 values(11); -- fail
ERROR: value for domain posint2 violates check constraint "posint2_check"
insert into ddtest2 values(-2); -- fail
ERROR: value for domain posint2 violates check constraint "c1"
insert into ddtest2 values(2);
alter domain posint add constraint c2 check(value >= 10); -- fail
ERROR: column "f1" of table "ddtest2" contains values that violate the new constraint
alter domain posint add constraint c2 check(value > 0); -- OK
drop table ddtest2;
drop type ddtest1;
drop domain posint cascade;
NOTICE: drop cascades to type posint2
--
-- Check enforcement of domain-related typmod in plpgsql (bug #5717)
--
create or replace function array_elem_check(numeric) returns numeric as $$
declare
x numeric(4,2)[1];
begin
x[1] := $1;
return x[1];
end$$ language plpgsql;
select array_elem_check(121.00);
ERROR: numeric field overflow
DETAIL: A field with precision 4, scale 2 must round to an absolute value less than 10^2.
CONTEXT: PL/pgSQL function array_elem_check(numeric) line 5 at assignment
select array_elem_check(1.23456);
array_elem_check
------------------
1.23
(1 row)
create domain mynums as numeric(4,2)[1];
create or replace function array_elem_check(numeric) returns numeric as $$
declare
x mynums;
begin
x[1] := $1;
return x[1];
end$$ language plpgsql;
select array_elem_check(121.00);
ERROR: numeric field overflow
DETAIL: A field with precision 4, scale 2 must round to an absolute value less than 10^2.
CONTEXT: PL/pgSQL function array_elem_check(numeric) line 5 at assignment
select array_elem_check(1.23456);
array_elem_check
------------------
1.23
(1 row)
create domain mynums2 as mynums;
create or replace function array_elem_check(numeric) returns numeric as $$
declare
x mynums2;
begin
x[1] := $1;
return x[1];
end$$ language plpgsql;
select array_elem_check(121.00);
ERROR: numeric field overflow
DETAIL: A field with precision 4, scale 2 must round to an absolute value less than 10^2.
CONTEXT: PL/pgSQL function array_elem_check(numeric) line 5 at assignment
select array_elem_check(1.23456);
array_elem_check
------------------
1.23
(1 row)
drop function array_elem_check(numeric);
--
-- Check enforcement of array-level domain constraints
--
create domain orderedpair as int[2] check (value[1] < value[2]);
select array[1,2]::orderedpair;
array
-------
{1,2}
(1 row)
select array[2,1]::orderedpair; -- fail
ERROR: value for domain orderedpair violates check constraint "orderedpair_check"
create temp table op (f1 orderedpair);
insert into op values (array[1,2]);
insert into op values (array[2,1]); -- fail
ERROR: value for domain orderedpair violates check constraint "orderedpair_check"
update op set f1[2] = 3;
update op set f1[2] = 0; -- fail
ERROR: value for domain orderedpair violates check constraint "orderedpair_check"
select * from op;
f1
-------
{1,3}
(1 row)
create or replace function array_elem_check(int) returns int as $$
declare
x orderedpair := '{1,2}';
begin
x[2] := $1;
return x[2];
end$$ language plpgsql;
select array_elem_check(3);
array_elem_check
------------------
3
(1 row)
select array_elem_check(-1);
ERROR: value for domain orderedpair violates check constraint "orderedpair_check"
CONTEXT: PL/pgSQL function array_elem_check(integer) line 5 at assignment
drop function array_elem_check(int);
--
-- Check enforcement of changing constraints in plpgsql
--
create domain di as int;
create function dom_check(int) returns di as $$
declare d di;
begin
d := $1::di;
return d;
end
$$ language plpgsql immutable;
select dom_check(0);
dom_check
-----------
0
(1 row)
alter domain di add constraint pos check (value > 0);
select dom_check(0); -- fail
ERROR: value for domain di violates check constraint "pos"
CONTEXT: PL/pgSQL function dom_check(integer) line 4 at assignment
alter domain di drop constraint pos;
select dom_check(0);
dom_check
-----------
0
(1 row)
-- implicit cast during assignment is a separate code path, test that too
create or replace function dom_check(int) returns di as $$
declare d di;
begin
d := $1;
return d;
end
$$ language plpgsql immutable;
select dom_check(0);
dom_check
-----------
0
(1 row)
alter domain di add constraint pos check (value > 0);
select dom_check(0); -- fail
ERROR: value for domain di violates check constraint "pos"
CONTEXT: PL/pgSQL function dom_check(integer) line 4 at assignment
alter domain di drop constraint pos;
select dom_check(0);
dom_check
-----------
0
(1 row)
drop function dom_check(int);
drop domain di;
--
-- Check use of a (non-inline-able) SQL function in a domain constraint;
-- this has caused issues in the past
--
create function sql_is_distinct_from(anyelement, anyelement)
returns boolean language sql
as 'select $1 is distinct from $2 limit 1';
create domain inotnull int
check (sql_is_distinct_from(value, null));
select 1::inotnull;
inotnull
----------
1
(1 row)
select null::inotnull;
ERROR: value for domain inotnull violates check constraint "inotnull_check"
create table dom_table (x inotnull);
insert into dom_table values ('1');
insert into dom_table values (1);
insert into dom_table values (null);
ERROR: value for domain inotnull violates check constraint "inotnull_check"
drop table dom_table;
drop domain inotnull;
drop function sql_is_distinct_from(anyelement, anyelement);
--
-- Renaming
--
create domain testdomain1 as int;
alter domain testdomain1 rename to testdomain2;
alter type testdomain2 rename to testdomain3; -- alter type also works
drop domain testdomain3;
--
-- Renaming domain constraints
--
create domain testdomain1 as int constraint unsigned check (value > 0);
alter domain testdomain1 rename constraint unsigned to unsigned_foo;
alter domain testdomain1 drop constraint unsigned_foo;
drop domain testdomain1;
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