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Add DOMAIN check constraints.

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Rod Taylor
This commit is contained in:
Bruce Momjian
2002-11-15 02:50:21 +00:00
parent 2986aa6a66
commit 6b603e67dc
29 changed files with 641 additions and 147 deletions
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32
src/test/regress/expected/domain.out
View File

@@ -103,35 +103,43 @@ 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'); -- Good
INSERT INTO nulltest values (NULL, 'b', 'c', 'd');
INSERT INTO nulltest values ('a', 'b', 'c', 'd', 'c'); -- Good
insert into nulltest values ('a', 'b', 'c', 'd', NULL);
ERROR: Domain $1 constraint dcheck failed
insert into nulltest values ('a', 'b', 'c', 'd', 'a');
ERROR: ExecInsert: rejected due to CHECK constraint "nulltest_col5" on "nulltest"
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');
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');
INSERT INTO nulltest values ('a', 'b', NULL, 'd', 'c');
ERROR: ExecInsert: Fail to add null value in not null attribute col3
INSERT INTO nulltest values ('a', 'b', 'c', NULL); -- Good
INSERT INTO nulltest values ('a', 'b', 'c', NULL, 'd'); -- Good
-- Test copy
COPY nulltest FROM stdin; --fail
ERROR: copy: line 1, CopyFrom: Fail to add null value in not null attribute col3
ERROR: copy: line 1, Domain $1 constraint dcheck failed
lost synchronization with server, resetting connection
SET autocommit TO 'on';
-- Last row is bad
COPY nulltest FROM stdin;
ERROR: copy: line 3, CopyFrom: rejected due to CHECK constraint "nulltest_col5" on "nulltest"
lost synchronization with server, resetting connection
select * from nulltest;
col1 | col2 | col3 | col4
------+------+------+------
a | b | c | d
a | b | c |
a | b | c |
(3 rows)
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);

21
src/test/regress/sql/domain.sql
View File

@@ -83,29 +83,36 @@ 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;
INSERT INTO nulltest values ('a', 'b', 'c', 'd'); -- Good
INSERT INTO nulltest values (NULL, 'b', 'c', 'd');
INSERT INTO nulltest values ('a', NULL, 'c', 'd');
INSERT INTO nulltest values ('a', 'b', NULL, 'd');
INSERT INTO nulltest values ('a', 'b', 'c', NULL); -- Good
INSERT INTO nulltest values ('a', 'b', 'c', 'd', 'c'); -- Good
insert into nulltest values ('a', 'b', 'c', 'd', NULL);
insert into nulltest values ('a', 'b', 'c', 'd', 'a');
INSERT INTO nulltest values (NULL, 'b', 'c', 'd', 'd');
INSERT INTO nulltest values ('a', NULL, 'c', 'd', 'c');
INSERT INTO nulltest values ('a', 'b', NULL, 'd', 'c');
INSERT INTO nulltest values ('a', 'b', 'c', NULL, 'd'); -- Good
-- Test copy
COPY nulltest FROM stdin; --fail
a b \N d
a b \N d \N
\.
SET autocommit TO 'on';
-- Last row is bad
COPY nulltest FROM stdin;
a b c \N
a b c \N c
a b c \N d
a b c \N a
\.
select * from nulltest;