723 lines
24 KiB
Plaintext
723 lines
24 KiB
Plaintext
--
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-- Test domains.
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--
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-- Test Comment / Drop
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create domain domaindroptest int4;
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comment on domain domaindroptest is 'About to drop this..';
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create domain dependenttypetest domaindroptest;
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-- fail because of dependent type
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drop domain domaindroptest;
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ERROR: cannot drop type domaindroptest because other objects depend on it
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DETAIL: type dependenttypetest depends on type domaindroptest
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HINT: Use DROP ... CASCADE to drop the dependent objects too.
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drop domain domaindroptest cascade;
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NOTICE: drop cascades to type dependenttypetest
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-- this should fail because already gone
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drop domain domaindroptest cascade;
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ERROR: type "domaindroptest" does not exist
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-- Test domain input.
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-- Note: the point of checking both INSERT and COPY FROM is that INSERT
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-- exercises CoerceToDomain while COPY exercises domain_in.
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create domain domainvarchar varchar(5);
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create domain domainnumeric numeric(8,2);
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create domain domainint4 int4;
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create domain domaintext text;
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-- Test explicit coercions --- these should succeed (and truncate)
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SELECT cast('123456' as domainvarchar);
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domainvarchar
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---------------
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12345
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(1 row)
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SELECT cast('12345' as domainvarchar);
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domainvarchar
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---------------
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12345
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(1 row)
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-- Test tables using domains
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create table basictest
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( testint4 domainint4
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, testtext domaintext
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, testvarchar domainvarchar
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, testnumeric domainnumeric
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);
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INSERT INTO basictest values ('88', 'haha', 'short', '123.12'); -- Good
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INSERT INTO basictest values ('88', 'haha', 'short text', '123.12'); -- Bad varchar
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ERROR: value too long for type character varying(5)
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INSERT INTO basictest values ('88', 'haha', 'short', '123.1212'); -- Truncate numeric
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-- Test copy
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COPY basictest (testvarchar) FROM stdin; -- fail
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ERROR: value too long for type character varying(5)
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CONTEXT: COPY basictest, line 1, column testvarchar: "notsoshorttext"
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COPY basictest (testvarchar) FROM stdin;
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select * from basictest;
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testint4 | testtext | testvarchar | testnumeric
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----------+----------+-------------+-------------
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88 | haha | short | 123.12
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88 | haha | short | 123.12
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| | short |
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(3 rows)
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-- check that domains inherit operations from base types
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select testtext || testvarchar as concat, testnumeric + 42 as sum
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from basictest;
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concat | sum
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-----------+--------
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hahashort | 165.12
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hahashort | 165.12
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(3 rows)
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-- check that union/case/coalesce type resolution handles domains properly
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select coalesce(4::domainint4, 7) is of (int4) as t;
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t
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---
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t
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(1 row)
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select coalesce(4::domainint4, 7) is of (domainint4) as f;
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f
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---
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f
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(1 row)
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select coalesce(4::domainint4, 7::domainint4) is of (domainint4) as t;
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t
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---
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t
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(1 row)
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drop table basictest;
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drop domain domainvarchar restrict;
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drop domain domainnumeric restrict;
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drop domain domainint4 restrict;
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drop domain domaintext;
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-- Test domains over array types
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create domain domainint4arr int4[1];
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create domain domainchar4arr varchar(4)[2][3];
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create table domarrtest
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( testint4arr domainint4arr
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, testchar4arr domainchar4arr
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);
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INSERT INTO domarrtest values ('{2,2}', '{{"a","b"},{"c","d"}}');
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INSERT INTO domarrtest values ('{{2,2},{2,2}}', '{{"a","b"}}');
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INSERT INTO domarrtest values ('{2,2}', '{{"a","b"},{"c","d"},{"e","f"}}');
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INSERT INTO domarrtest values ('{2,2}', '{{"a"},{"c"}}');
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INSERT INTO domarrtest values (NULL, '{{"a","b","c"},{"d","e","f"}}');
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INSERT INTO domarrtest values (NULL, '{{"toolong","b","c"},{"d","e","f"}}');
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ERROR: value too long for type character varying(4)
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select * from domarrtest;
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testint4arr | testchar4arr
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---------------+---------------------
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{2,2} | {{a,b},{c,d}}
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{{2,2},{2,2}} | {{a,b}}
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{2,2} | {{a,b},{c,d},{e,f}}
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{2,2} | {{a},{c}}
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| {{a,b,c},{d,e,f}}
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(5 rows)
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select testint4arr[1], testchar4arr[2:2] from domarrtest;
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testint4arr | testchar4arr
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-------------+--------------
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2 | {{c,d}}
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| {}
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2 | {{c,d}}
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2 | {{c}}
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| {{d,e,f}}
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(5 rows)
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select array_dims(testint4arr), array_dims(testchar4arr) from domarrtest;
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array_dims | array_dims
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------------+------------
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[1:2] | [1:2][1:2]
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[1:2][1:2] | [1:1][1:2]
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[1:2] | [1:3][1:2]
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[1:2] | [1:2][1:1]
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| [1:2][1:3]
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(5 rows)
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COPY domarrtest FROM stdin;
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COPY domarrtest FROM stdin; -- fail
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ERROR: value too long for type character varying(4)
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CONTEXT: COPY domarrtest, line 1, column testchar4arr: "{qwerty,w,e}"
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select * from domarrtest;
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testint4arr | testchar4arr
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---------------+---------------------
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{2,2} | {{a,b},{c,d}}
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{{2,2},{2,2}} | {{a,b}}
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{2,2} | {{a,b},{c,d},{e,f}}
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{2,2} | {{a},{c}}
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| {{a,b,c},{d,e,f}}
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{3,4} | {q,w,e}
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(7 rows)
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drop table domarrtest;
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drop domain domainint4arr restrict;
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drop domain domainchar4arr restrict;
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create domain dia as int[];
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select '{1,2,3}'::dia;
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dia
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---------
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{1,2,3}
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(1 row)
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select array_dims('{1,2,3}'::dia);
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array_dims
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------------
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[1:3]
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(1 row)
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select pg_typeof('{1,2,3}'::dia);
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pg_typeof
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-----------
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dia
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(1 row)
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select pg_typeof('{1,2,3}'::dia || 42); -- should be int[] not dia
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pg_typeof
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-----------
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integer[]
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(1 row)
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drop domain dia;
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create domain dnotnull varchar(15) NOT NULL;
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create domain dnull varchar(15);
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create domain dcheck varchar(15) NOT NULL CHECK (VALUE = 'a' OR VALUE = 'c' OR VALUE = 'd');
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create table nulltest
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( col1 dnotnull
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, col2 dnotnull NULL -- NOT NULL in the domain cannot be overridden
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, col3 dnull NOT NULL
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, col4 dnull
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, col5 dcheck CHECK (col5 IN ('c', 'd'))
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);
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INSERT INTO nulltest DEFAULT VALUES;
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ERROR: domain dnotnull does not allow null values
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INSERT INTO nulltest values ('a', 'b', 'c', 'd', 'c'); -- Good
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insert into nulltest values ('a', 'b', 'c', 'd', NULL);
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ERROR: domain dcheck does not allow null values
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insert into nulltest values ('a', 'b', 'c', 'd', 'a');
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ERROR: new row for relation "nulltest" violates check constraint "nulltest_col5_check"
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DETAIL: Failing row contains (a, b, c, d, a).
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INSERT INTO nulltest values (NULL, 'b', 'c', 'd', 'd');
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ERROR: domain dnotnull does not allow null values
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INSERT INTO nulltest values ('a', NULL, 'c', 'd', 'c');
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ERROR: domain dnotnull does not allow null values
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INSERT INTO nulltest values ('a', 'b', NULL, 'd', 'c');
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ERROR: null value in column "col3" violates not-null constraint
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DETAIL: Failing row contains (a, b, null, d, c).
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INSERT INTO nulltest values ('a', 'b', 'c', NULL, 'd'); -- Good
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-- Test copy
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COPY nulltest FROM stdin; --fail
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ERROR: null value in column "col3" violates not-null constraint
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DETAIL: Failing row contains (a, b, null, d, d).
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CONTEXT: COPY nulltest, line 1: "a b \N d d"
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COPY nulltest FROM stdin; --fail
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ERROR: domain dcheck does not allow null values
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CONTEXT: COPY nulltest, line 1, column col5: null input
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-- Last row is bad
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COPY nulltest FROM stdin;
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ERROR: new row for relation "nulltest" violates check constraint "nulltest_col5_check"
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DETAIL: Failing row contains (a, b, c, null, a).
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CONTEXT: COPY nulltest, line 3: "a b c \N a"
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select * from nulltest;
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col1 | col2 | col3 | col4 | col5
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------+------+------+------+------
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a | b | c | d | c
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a | b | c | | d
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(2 rows)
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-- Test out coerced (casted) constraints
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SELECT cast('1' as dnotnull);
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dnotnull
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----------
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1
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(1 row)
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SELECT cast(NULL as dnotnull); -- fail
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ERROR: domain dnotnull does not allow null values
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SELECT cast(cast(NULL as dnull) as dnotnull); -- fail
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ERROR: domain dnotnull does not allow null values
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SELECT cast(col4 as dnotnull) from nulltest; -- fail
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ERROR: domain dnotnull does not allow null values
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-- cleanup
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drop table nulltest;
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drop domain dnotnull restrict;
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drop domain dnull restrict;
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drop domain dcheck restrict;
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create domain ddef1 int4 DEFAULT 3;
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create domain ddef2 oid DEFAULT '12';
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-- Type mixing, function returns int8
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create domain ddef3 text DEFAULT 5;
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create sequence ddef4_seq;
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create domain ddef4 int4 DEFAULT nextval('ddef4_seq');
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create domain ddef5 numeric(8,2) NOT NULL DEFAULT '12.12';
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create table defaulttest
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( col1 ddef1
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, col2 ddef2
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, col3 ddef3
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, col4 ddef4 PRIMARY KEY
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, col5 ddef1 NOT NULL DEFAULT NULL
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, col6 ddef2 DEFAULT '88'
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, col7 ddef4 DEFAULT 8000
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, col8 ddef5
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);
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insert into defaulttest(col4) values(0); -- fails, col5 defaults to null
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ERROR: null value in column "col5" violates not-null constraint
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DETAIL: Failing row contains (3, 12, 5, 0, null, 88, 8000, 12.12).
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alter table defaulttest alter column col5 drop default;
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insert into defaulttest default values; -- succeeds, inserts domain default
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-- We used to treat SET DEFAULT NULL as equivalent to DROP DEFAULT; wrong
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alter table defaulttest alter column col5 set default null;
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insert into defaulttest(col4) values(0); -- fails
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ERROR: null value in column "col5" violates not-null constraint
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DETAIL: Failing row contains (3, 12, 5, 0, null, 88, 8000, 12.12).
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alter table defaulttest alter column col5 drop default;
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insert into defaulttest default values;
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insert into defaulttest default values;
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-- Test defaults with copy
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COPY defaulttest(col5) FROM stdin;
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select * from defaulttest;
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col1 | col2 | col3 | col4 | col5 | col6 | col7 | col8
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------+------+------+------+------+------+------+-------
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3 | 12 | 5 | 1 | 3 | 88 | 8000 | 12.12
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3 | 12 | 5 | 2 | 3 | 88 | 8000 | 12.12
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3 | 12 | 5 | 3 | 3 | 88 | 8000 | 12.12
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3 | 12 | 5 | 4 | 42 | 88 | 8000 | 12.12
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(4 rows)
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drop table defaulttest cascade;
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-- Test ALTER DOMAIN .. NOT NULL
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create domain dnotnulltest integer;
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create table domnotnull
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( col1 dnotnulltest
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, col2 dnotnulltest
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);
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insert into domnotnull default values;
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alter domain dnotnulltest set not null; -- fails
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ERROR: column "col1" of table "domnotnull" contains null values
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update domnotnull set col1 = 5;
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alter domain dnotnulltest set not null; -- fails
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ERROR: column "col2" of table "domnotnull" contains null values
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update domnotnull set col2 = 6;
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alter domain dnotnulltest set not null;
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update domnotnull set col1 = null; -- fails
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ERROR: domain dnotnulltest does not allow null values
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alter domain dnotnulltest drop not null;
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update domnotnull set col1 = null;
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drop domain dnotnulltest cascade;
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NOTICE: drop cascades to 2 other objects
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DETAIL: drop cascades to table domnotnull column col1
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drop cascades to table domnotnull column col2
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-- Test ALTER DOMAIN .. DEFAULT ..
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create table domdeftest (col1 ddef1);
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insert into domdeftest default values;
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select * from domdeftest;
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col1
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------
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3
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(1 row)
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alter domain ddef1 set default '42';
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insert into domdeftest default values;
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select * from domdeftest;
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col1
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------
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3
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42
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(2 rows)
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alter domain ddef1 drop default;
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insert into domdeftest default values;
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select * from domdeftest;
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col1
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------
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3
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42
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(3 rows)
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drop table domdeftest;
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-- Test ALTER DOMAIN .. CONSTRAINT ..
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create domain con as integer;
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create table domcontest (col1 con);
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insert into domcontest values (1);
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insert into domcontest values (2);
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alter domain con add constraint t check (VALUE < 1); -- fails
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ERROR: column "col1" of table "domcontest" contains values that violate the new constraint
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alter domain con add constraint t check (VALUE < 34);
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alter domain con add check (VALUE > 0);
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insert into domcontest values (-5); -- fails
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ERROR: value for domain con violates check constraint "con_check"
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insert into domcontest values (42); -- fails
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ERROR: value for domain con violates check constraint "t"
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insert into domcontest values (5);
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alter domain con drop constraint t;
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insert into domcontest values (-5); --fails
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ERROR: value for domain con violates check constraint "con_check"
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insert into domcontest values (42);
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alter domain con drop constraint nonexistent;
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ERROR: constraint "nonexistent" of domain "con" does not exist
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alter domain con drop constraint if exists nonexistent;
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NOTICE: constraint "nonexistent" of domain "con" does not exist, skipping
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-- Test ALTER DOMAIN .. CONSTRAINT .. NOT VALID
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create domain things AS INT;
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CREATE TABLE thethings (stuff things);
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INSERT INTO thethings (stuff) VALUES (55);
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ALTER DOMAIN things ADD CONSTRAINT meow CHECK (VALUE < 11);
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ERROR: column "stuff" of table "thethings" contains values that violate the new constraint
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ALTER DOMAIN things ADD CONSTRAINT meow CHECK (VALUE < 11) NOT VALID;
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ALTER DOMAIN things VALIDATE CONSTRAINT meow;
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ERROR: column "stuff" of table "thethings" contains values that violate the new constraint
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UPDATE thethings SET stuff = 10;
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ALTER DOMAIN things VALIDATE CONSTRAINT meow;
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-- Confirm ALTER DOMAIN with RULES.
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create table domtab (col1 integer);
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create domain dom as integer;
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create view domview as select cast(col1 as dom) from domtab;
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insert into domtab (col1) values (null);
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insert into domtab (col1) values (5);
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select * from domview;
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col1
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------
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5
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(2 rows)
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alter domain dom set not null;
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select * from domview; -- fail
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ERROR: domain dom does not allow null values
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alter domain dom drop not null;
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select * from domview;
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col1
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------
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5
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(2 rows)
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alter domain dom add constraint domchkgt6 check(value > 6);
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select * from domview; --fail
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ERROR: value for domain dom violates check constraint "domchkgt6"
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alter domain dom drop constraint domchkgt6 restrict;
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select * from domview;
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col1
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------
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5
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(2 rows)
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-- cleanup
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drop domain ddef1 restrict;
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drop domain ddef2 restrict;
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drop domain ddef3 restrict;
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drop domain ddef4 restrict;
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drop domain ddef5 restrict;
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drop sequence ddef4_seq;
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-- Test domains over domains
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create domain vchar4 varchar(4);
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create domain dinter vchar4 check (substring(VALUE, 1, 1) = 'x');
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create domain dtop dinter check (substring(VALUE, 2, 1) = '1');
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select 'x123'::dtop;
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dtop
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------
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x123
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(1 row)
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select 'x1234'::dtop; -- explicit coercion should truncate
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dtop
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------
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x123
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(1 row)
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select 'y1234'::dtop; -- fail
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ERROR: value for domain dtop violates check constraint "dinter_check"
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select 'y123'::dtop; -- fail
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ERROR: value for domain dtop violates check constraint "dinter_check"
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select 'yz23'::dtop; -- fail
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ERROR: value for domain dtop violates check constraint "dinter_check"
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select 'xz23'::dtop; -- fail
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ERROR: value for domain dtop violates check constraint "dtop_check"
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create temp table dtest(f1 dtop);
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insert into dtest values('x123');
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insert into dtest values('x1234'); -- fail, implicit coercion
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ERROR: value too long for type character varying(4)
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insert into dtest values('y1234'); -- fail, implicit coercion
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ERROR: value too long for type character varying(4)
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insert into dtest values('y123'); -- fail
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ERROR: value for domain dtop violates check constraint "dinter_check"
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insert into dtest values('yz23'); -- fail
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ERROR: value for domain dtop violates check constraint "dinter_check"
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insert into dtest values('xz23'); -- fail
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ERROR: value for domain dtop violates check constraint "dtop_check"
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drop table dtest;
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drop domain vchar4 cascade;
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NOTICE: drop cascades to 2 other objects
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DETAIL: drop cascades to type dinter
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drop cascades to type dtop
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-- Make sure that constraints of newly-added domain columns are
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-- enforced correctly, even if there's no default value for the new
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-- column. Per bug #1433
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create domain str_domain as text not null;
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create table domain_test (a int, b int);
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insert into domain_test values (1, 2);
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insert into domain_test values (1, 2);
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-- should fail
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alter table domain_test add column c str_domain;
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ERROR: domain str_domain does not allow null values
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create domain str_domain2 as text check (value <> 'foo') default 'foo';
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-- should fail
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alter table domain_test add column d str_domain2;
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ERROR: value for domain str_domain2 violates check constraint "str_domain2_check"
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-- Check that domain constraints on prepared statement parameters of
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-- unknown type are enforced correctly.
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create domain pos_int as int4 check (value > 0) not null;
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prepare s1 as select $1::pos_int = 10 as "is_ten";
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execute s1(10);
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is_ten
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--------
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t
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(1 row)
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|
|
|
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 3 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 3 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;
|
|
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;
|
|
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 $$
|
|
declare d di;
|
|
begin
|
|
d := $1;
|
|
return d;
|
|
end
|
|
$$ 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;
|