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postgresql/src/test/regress/expected/alter_table.out

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--
-- ALTER_TABLE
-- add attribute
--
CREATE TABLE tmp (initial int4);
ALTER TABLE tmp ADD COLUMN a int4;
ALTER TABLE tmp ADD COLUMN b name;
ALTER TABLE tmp ADD COLUMN c text;
ALTER TABLE tmp ADD COLUMN d float8;
ALTER TABLE tmp ADD COLUMN e float4;
ALTER TABLE tmp ADD COLUMN f int2;
ALTER TABLE tmp ADD COLUMN g polygon;
ALTER TABLE tmp ADD COLUMN h abstime;
ALTER TABLE tmp ADD COLUMN i char;
ALTER TABLE tmp ADD COLUMN j abstime[];
ALTER TABLE tmp ADD COLUMN k int4;
ALTER TABLE tmp ADD COLUMN l tid;
ALTER TABLE tmp ADD COLUMN m xid;
ALTER TABLE tmp ADD COLUMN n oidvector;
--ALTER TABLE tmp ADD COLUMN o lock;
ALTER TABLE tmp ADD COLUMN p smgr;
ALTER TABLE tmp ADD COLUMN q point;
ALTER TABLE tmp ADD COLUMN r lseg;
ALTER TABLE tmp ADD COLUMN s path;
ALTER TABLE tmp ADD COLUMN t box;
ALTER TABLE tmp ADD COLUMN u tinterval;
ALTER TABLE tmp ADD COLUMN v datetime;
ALTER TABLE tmp ADD COLUMN w timespan;
ALTER TABLE tmp ADD COLUMN x float8[];
ALTER TABLE tmp ADD COLUMN y float4[];
ALTER TABLE tmp ADD COLUMN z int2[];
INSERT INTO tmp (a, b, c, d, e, f, g, h, i, j, k, l, m, n, p, q, r, s, t, u,
v, w, x, y, z)
VALUES (4, 'name', 'text', 4.1, 4.1, 2, '(4.1,4.1,3.1,3.1)',
'Mon May 1 00:30:30 1995', 'c', '{Mon May 1 00:30:30 1995, Monday Aug 24 14:43:07 1992, epoch}',
314159, '(1,1)', '512',
'1 2 3 4 5 6 7 8', 'magnetic disk', '(1.1,1.1)', '(4.1,4.1,3.1,3.1)',
'(0,2,4.1,4.1,3.1,3.1)', '(4.1,4.1,3.1,3.1)', '["epoch" "infinity"]',
'epoch', '01:00:10', '{1.0,2.0,3.0,4.0}', '{1.0,2.0,3.0,4.0}', '{1,2,3,4}');
SELECT * FROM tmp;
initial | a | b | c | d | e | f | g | h | i | j | k | l | m | n | p | q | r | s | t | u | v | w | x | y | z
---------+---+------+------+-----+-----+---+-----------------------+------------------------------+---+------------------------------------------------------------------------------------------------+--------+-------+-----+-----------------+---------------+-----------+-----------------------+-----------------------------+---------------------+---------------------------------------------+--------------------------+------------------+-----------+-----------+-----------
| 4 | name | text | 4.1 | 4.1 | 2 | ((4.1,4.1),(3.1,3.1)) | Mon May 01 00:30:30 1995 PDT | c | {"Mon May 01 00:30:30 1995 PDT","Mon Aug 24 14:43:07 1992 PDT","Wed Dec 31 16:00:00 1969 PST"} | 314159 | (1,1) | 512 | 1 2 3 4 5 6 7 8 | magnetic disk | (1.1,1.1) | [(4.1,4.1),(3.1,3.1)] | ((0,2),(4.1,4.1),(3.1,3.1)) | (4.1,4.1),(3.1,3.1) | ["Wed Dec 31 16:00:00 1969 PST" "infinity"] | Thu Jan 01 00:00:00 1970 | @ 1 hour 10 secs | {1,2,3,4} | {1,2,3,4} | {1,2,3,4}
(1 row)
DROP TABLE tmp;
-- the wolf bug - schema mods caused inconsistent row descriptors
CREATE TABLE tmp (
initial int4
);
ALTER TABLE tmp ADD COLUMN a int4;
ALTER TABLE tmp ADD COLUMN b name;
ALTER TABLE tmp ADD COLUMN c text;
ALTER TABLE tmp ADD COLUMN d float8;
ALTER TABLE tmp ADD COLUMN e float4;
ALTER TABLE tmp ADD COLUMN f int2;
ALTER TABLE tmp ADD COLUMN g polygon;
ALTER TABLE tmp ADD COLUMN h abstime;
ALTER TABLE tmp ADD COLUMN i char;
ALTER TABLE tmp ADD COLUMN j abstime[];
ALTER TABLE tmp ADD COLUMN k int4;
ALTER TABLE tmp ADD COLUMN l tid;
ALTER TABLE tmp ADD COLUMN m xid;
ALTER TABLE tmp ADD COLUMN n oidvector;
--ALTER TABLE tmp ADD COLUMN o lock;
ALTER TABLE tmp ADD COLUMN p smgr;
ALTER TABLE tmp ADD COLUMN q point;
ALTER TABLE tmp ADD COLUMN r lseg;
ALTER TABLE tmp ADD COLUMN s path;
ALTER TABLE tmp ADD COLUMN t box;
ALTER TABLE tmp ADD COLUMN u tinterval;
ALTER TABLE tmp ADD COLUMN v datetime;
ALTER TABLE tmp ADD COLUMN w timespan;
ALTER TABLE tmp ADD COLUMN x float8[];
ALTER TABLE tmp ADD COLUMN y float4[];
ALTER TABLE tmp ADD COLUMN z int2[];
INSERT INTO tmp (a, b, c, d, e, f, g, h, i, j, k, l, m, n, p, q, r, s, t, u,
v, w, x, y, z)
VALUES (4, 'name', 'text', 4.1, 4.1, 2, '(4.1,4.1,3.1,3.1)',
'Mon May 1 00:30:30 1995', 'c', '{Mon May 1 00:30:30 1995, Monday Aug 24 14:43:07 1992, epoch}',
314159, '(1,1)', '512',
'1 2 3 4 5 6 7 8', 'magnetic disk', '(1.1,1.1)', '(4.1,4.1,3.1,3.1)',
'(0,2,4.1,4.1,3.1,3.1)', '(4.1,4.1,3.1,3.1)', '["epoch" "infinity"]',
'epoch', '01:00:10', '{1.0,2.0,3.0,4.0}', '{1.0,2.0,3.0,4.0}', '{1,2,3,4}');
SELECT * FROM tmp;
initial | a | b | c | d | e | f | g | h | i | j | k | l | m | n | p | q | r | s | t | u | v | w | x | y | z
---------+---+------+------+-----+-----+---+-----------------------+------------------------------+---+------------------------------------------------------------------------------------------------+--------+-------+-----+-----------------+---------------+-----------+-----------------------+-----------------------------+---------------------+---------------------------------------------+--------------------------+------------------+-----------+-----------+-----------
| 4 | name | text | 4.1 | 4.1 | 2 | ((4.1,4.1),(3.1,3.1)) | Mon May 01 00:30:30 1995 PDT | c | {"Mon May 01 00:30:30 1995 PDT","Mon Aug 24 14:43:07 1992 PDT","Wed Dec 31 16:00:00 1969 PST"} | 314159 | (1,1) | 512 | 1 2 3 4 5 6 7 8 | magnetic disk | (1.1,1.1) | [(4.1,4.1),(3.1,3.1)] | ((0,2),(4.1,4.1),(3.1,3.1)) | (4.1,4.1),(3.1,3.1) | ["Wed Dec 31 16:00:00 1969 PST" "infinity"] | Thu Jan 01 00:00:00 1970 | @ 1 hour 10 secs | {1,2,3,4} | {1,2,3,4} | {1,2,3,4}
(1 row)
DROP TABLE tmp;
--
-- rename -
-- should preserve indices, which we can check by seeing if a SELECT
-- chooses an indexscan; however, in the absence of vacuum statistics
-- it might not. Therefore, vacuum first.
--
VACUUM ANALYZE tenk1;
ALTER TABLE tenk1 RENAME TO ten_k;
-- 20 values, sorted
SELECT unique1 FROM ten_k WHERE unique1 < 20;
unique1
---------
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-- 20 values, sorted
SELECT unique2 FROM ten_k WHERE unique2 < 20;
unique2
---------
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-- 100 values, sorted
SELECT hundred FROM ten_k WHERE hundred = 50;
hundred
---------
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(100 rows)
ALTER TABLE ten_k RENAME TO tenk1;
-- 5 values, sorted
SELECT unique1 FROM tenk1 WHERE unique1 < 5;
unique1
---------
0
1
2
3
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(5 rows)
-- FOREIGN KEY CONSTRAINT adding TEST
CREATE TABLE tmp2 (a int primary key);
NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index 'tmp2_pkey' for table 'tmp2'
CREATE TABLE tmp3 (a int, b int);
CREATE TABLE tmp4 (a int, b int, unique(a,b));
NOTICE: CREATE TABLE / UNIQUE will create implicit index 'tmp4_a_key' for table 'tmp4'
CREATE TABLE tmp5 (a int, b int);
-- Insert rows into tmp2 (pktable)
INSERT INTO tmp2 values (1);
INSERT INTO tmp2 values (2);
INSERT INTO tmp2 values (3);
INSERT INTO tmp2 values (4);
-- Insert rows into tmp3
INSERT INTO tmp3 values (1,10);
INSERT INTO tmp3 values (1,20);
INSERT INTO tmp3 values (5,50);
-- Try (and fail) to add constraint due to invalid source columns
ALTER TABLE tmp3 add constraint tmpconstr foreign key(c) references tmp2 match full;
NOTICE: ALTER TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
ERROR: ALTER TABLE: column "c" referenced in foreign key constraint does not exist
-- Try (and fail) to add constraint due to invalide destination columns explicitly given
ALTER TABLE tmp3 add constraint tmpconstr foreign key(a) references tmp2(b) match full;
NOTICE: ALTER TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
ERROR: UNIQUE constraint matching given keys for referenced table "tmp2" not found
-- Try (and fail) to add constraint due to invalid data
ALTER TABLE tmp3 add constraint tmpconstr foreign key (a) references tmp2 match full;
NOTICE: ALTER TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
ERROR: tmpconstr referential integrity violation - key referenced from tmp3 not found in tmp2
-- Delete failing row
DELETE FROM tmp3 where a=5;
-- Try (and succeed)
ALTER TABLE tmp3 add constraint tmpconstr foreign key (a) references tmp2 match full;
NOTICE: ALTER TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
-- Try (and fail) to create constraint from tmp5(a) to tmp4(a) - unique constraint on
-- tmp4 is a,b
ALTER TABLE tmp5 add constraint tmpconstr foreign key(a) references tmp4(a) match full;
NOTICE: ALTER TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
ERROR: UNIQUE constraint matching given keys for referenced table "tmp4" not found
DROP TABLE tmp5;
DROP TABLE tmp4;
DROP TABLE tmp3;
NOTICE: DROP TABLE implicitly drops referential integrity trigger from table "tmp2"
NOTICE: DROP TABLE implicitly drops referential integrity trigger from table "tmp2"
DROP TABLE tmp2;
-- Foreign key adding test with mixed types
-- Note: these tables are TEMP to avoid name conflicts when this test
-- is run in parallel with foreign_key.sql.
CREATE TEMP TABLE PKTABLE (ptest1 int PRIMARY KEY);
NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index 'pktable_pkey' for table 'pktable'
CREATE TEMP TABLE FKTABLE (ftest1 text);
-- This next should fail, because text=int does not exist
ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1) references pktable;
NOTICE: ALTER TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
ERROR: Unable to identify an operator '=' for types 'text' and 'integer'
You will have to retype this query using an explicit cast
-- This should also fail for the same reason, but here we
-- give the column name
ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1) references pktable(ptest1);
NOTICE: ALTER TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
ERROR: Unable to identify an operator '=' for types 'text' and 'integer'
You will have to retype this query using an explicit cast
-- This should succeed, even though they are different types
-- because varchar=int does exist
DROP TABLE FKTABLE;
CREATE TEMP TABLE FKTABLE (ftest1 varchar);
ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1) references pktable;
NOTICE: ALTER TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
-- As should this
ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1) references pktable(ptest1);
NOTICE: ALTER TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
DROP TABLE pktable;
NOTICE: DROP TABLE implicitly drops referential integrity trigger from table "fktable"
NOTICE: DROP TABLE implicitly drops referential integrity trigger from table "fktable"
DROP TABLE fktable;
CREATE TEMP TABLE PKTABLE (ptest1 int, ptest2 text,
PRIMARY KEY(ptest1, ptest2));
NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index 'pktable_pkey' for table 'pktable'
-- This should fail, because we just chose really odd types
CREATE TEMP TABLE FKTABLE (ftest1 cidr, ftest2 datetime);
ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1, ftest2) references pktable;
NOTICE: ALTER TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
ERROR: Unable to identify an operator '=' for types 'cidr' and 'integer'
You will have to retype this query using an explicit cast
-- Again, so should this...
DROP TABLE FKTABLE;
CREATE TEMP TABLE FKTABLE (ftest1 cidr, ftest2 datetime);
ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1, ftest2)
references pktable(ptest1, ptest2);
NOTICE: ALTER TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
ERROR: Unable to identify an operator '=' for types 'cidr' and 'integer'
You will have to retype this query using an explicit cast
-- This fails because we mixed up the column ordering
DROP TABLE FKTABLE;
CREATE TEMP TABLE FKTABLE (ftest1 int, ftest2 text);
ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1, ftest2)
references pktable(ptest2, ptest1);
NOTICE: ALTER TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
ERROR: Unable to identify an operator '=' for types 'integer' and 'text'
You will have to retype this query using an explicit cast
-- As does this...
ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest2, ftest1)
references pktable(ptest1, ptest2);
NOTICE: ALTER TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
ERROR: Unable to identify an operator '=' for types 'text' and 'integer'
You will have to retype this query using an explicit cast
-- temp tables should go away by themselves, need not drop them.
-- test check constraint adding
create table atacc1 ( test int );
-- add a check constraint
alter table atacc1 add constraint atacc_test1 check (test>3);
-- should fail
insert into atacc1 (test) values (2);
ERROR: ExecAppend: rejected due to CHECK constraint atacc_test1
-- should succeed
insert into atacc1 (test) values (4);
drop table atacc1;
-- let's do one where the check fails when added
create table atacc1 ( test int );
-- insert a soon to be failing row
insert into atacc1 (test) values (2);
-- add a check constraint (fails)
alter table atacc1 add constraint atacc_test1 check (test>3);
ERROR: AlterTableAddConstraint: rejected due to CHECK constraint atacc_test1
insert into atacc1 (test) values (4);
drop table atacc1;
-- let's do one where the check fails because the column doesn't exist
create table atacc1 ( test int );
-- add a check constraint (fails)
alter table atacc1 add constraint atacc_test1 check (test1>3);
ERROR: Attribute "test1" not found
drop table atacc1;
-- something a little more complicated
create table atacc1 ( test int, test2 int, test3 int);
-- add a check constraint (fails)
alter table atacc1 add constraint atacc_test1 check (test+test2<test3*4);
-- should fail
insert into atacc1 (test,test2,test3) values (4,4,2);
ERROR: ExecAppend: rejected due to CHECK constraint atacc_test1
-- should succeed
insert into atacc1 (test,test2,test3) values (4,4,5);
drop table atacc1;
-- lets do some naming tests
create table atacc1 (test int check (test>3), test2 int);
alter table atacc1 add check (test2>test);
-- should fail for $2
insert into atacc1 (test2, test) values (3, 4);
ERROR: ExecAppend: rejected due to CHECK constraint $2
drop table atacc1;
-- inheritance related tests
create table atacc1 (test int);
create table atacc2 (test2 int);
create table atacc3 (test3 int) inherits (atacc1, atacc2);
alter table atacc2 add constraint foo check (test2>0);
-- fail and then succeed on atacc2
insert into atacc2 (test2) values (-3);
ERROR: ExecAppend: rejected due to CHECK constraint foo
insert into atacc2 (test2) values (3);
-- fail and then succeed on atacc3
insert into atacc3 (test2) values (-3);
ERROR: ExecAppend: rejected due to CHECK constraint foo
insert into atacc3 (test2) values (3);
drop table atacc3;
drop table atacc2;
drop table atacc1;
-- let's try only to add only to the parent
create table atacc1 (test int);
create table atacc2 (test2 int);
create table atacc3 (test3 int) inherits (atacc1, atacc2);
alter table only atacc2 add constraint foo check (test2>0);
-- fail and then succeed on atacc2
insert into atacc2 (test2) values (-3);
ERROR: ExecAppend: rejected due to CHECK constraint foo
insert into atacc2 (test2) values (3);
-- both succeed on atacc3
insert into atacc3 (test2) values (-3);
insert into atacc3 (test2) values (3);
drop table atacc3;
drop table atacc2;
drop table atacc1;
-- test unique constraint adding
create table atacc1 ( test int );
-- add a unique constraint
alter table atacc1 add constraint atacc_test1 unique (test);
NOTICE: ALTER TABLE / ADD UNIQUE will create implicit index 'atacc_test1' for table 'atacc1'
-- insert first value
insert into atacc1 (test) values (2);
-- should fail
insert into atacc1 (test) values (2);
ERROR: Cannot insert a duplicate key into unique index atacc_test1
-- should succeed
insert into atacc1 (test) values (4);
-- try adding a unique oid constraint
alter table atacc1 add constraint atacc_oid1 unique(oid);
NOTICE: ALTER TABLE / ADD UNIQUE will create implicit index 'atacc_oid1' for table 'atacc1'
drop table atacc1;
-- let's do one where the unique constraint fails when added
create table atacc1 ( test int );
-- insert soon to be failing rows
insert into atacc1 (test) values (2);
insert into atacc1 (test) values (2);
-- add a unique constraint (fails)
alter table atacc1 add constraint atacc_test1 unique (test);
NOTICE: ALTER TABLE / ADD UNIQUE will create implicit index 'atacc_test1' for table 'atacc1'
ERROR: Cannot create unique index. Table contains non-unique values
insert into atacc1 (test) values (3);
drop table atacc1;
-- let's do one where the unique constraint fails
-- because the column doesn't exist
create table atacc1 ( test int );
-- add a unique constraint (fails)
alter table atacc1 add constraint atacc_test1 unique (test1);
ERROR: ALTER TABLE: column "test1" named in key does not exist
drop table atacc1;
-- something a little more complicated
create table atacc1 ( test int, test2 int);
-- add a unique constraint
alter table atacc1 add constraint atacc_test1 unique (test, test2);
NOTICE: ALTER TABLE / ADD UNIQUE will create implicit index 'atacc_test1' for table 'atacc1'
-- insert initial value
insert into atacc1 (test,test2) values (4,4);
-- should fail
insert into atacc1 (test,test2) values (4,4);
ERROR: Cannot insert a duplicate key into unique index atacc_test1
-- should all succeed
insert into atacc1 (test,test2) values (4,5);
insert into atacc1 (test,test2) values (5,4);
insert into atacc1 (test,test2) values (5,5);
drop table atacc1;
-- lets do some naming tests
create table atacc1 (test int, test2 int, unique(test));
NOTICE: CREATE TABLE / UNIQUE will create implicit index 'atacc1_test_key' for table 'atacc1'
alter table atacc1 add unique (test2);
NOTICE: ALTER TABLE / ADD UNIQUE will create implicit index 'atacc1_test2_key' for table 'atacc1'
-- should fail for @@ second one @@
insert into atacc1 (test2, test) values (3, 3);
insert into atacc1 (test2, test) values (2, 3);
ERROR: Cannot insert a duplicate key into unique index atacc1_test_key
drop table atacc1;
-- test primary key constraint adding
create table atacc1 ( test int );
-- add a primary key constraint
alter table atacc1 add constraint atacc_test1 primary key (test);
ERROR: Existing attribute "test" cannot be a PRIMARY KEY because it is not marked NOT NULL
-- insert first value
insert into atacc1 (test) values (2);
-- should fail
insert into atacc1 (test) values (2);
-- should succeed
insert into atacc1 (test) values (4);
-- inserting NULL should fail
insert into atacc1 (test) values(NULL);
-- try adding a primary key oid constraint
alter table atacc1 add constraint atacc_oid1 primary key(oid);
NOTICE: ALTER TABLE / ADD PRIMARY KEY will create implicit index 'atacc_oid1' for table 'atacc1'
drop table atacc1;
-- let's do one where the primary key constraint fails when added
create table atacc1 ( test int );
-- insert soon to be failing rows
insert into atacc1 (test) values (2);
insert into atacc1 (test) values (2);
-- add a primary key (fails)
alter table atacc1 add constraint atacc_test1 primary key (test);
ERROR: Existing attribute "test" cannot be a PRIMARY KEY because it is not marked NOT NULL
insert into atacc1 (test) values (3);
drop table atacc1;
-- let's do another one where the primary key constraint fails when added
create table atacc1 ( test int );
-- insert soon to be failing row
insert into atacc1 (test) values (NULL);
-- add a primary key (fails)
alter table atacc1 add constraint atacc_test1 primary key (test);
ERROR: Existing attribute "test" cannot be a PRIMARY KEY because it is not marked NOT NULL
insert into atacc1 (test) values (3);
drop table atacc1;
-- let's do one where the primary key constraint fails
-- because the column doesn't exist
create table atacc1 ( test int );
-- add a primary key constraint (fails)
alter table atacc1 add constraint atacc_test1 primary key (test1);
ERROR: ALTER TABLE: column "test1" named in key does not exist
drop table atacc1;
-- something a little more complicated
create table atacc1 ( test int, test2 int);
-- add a primary key constraint
alter table atacc1 add constraint atacc_test1 primary key (test, test2);
ERROR: Existing attribute "test" cannot be a PRIMARY KEY because it is not marked NOT NULL
-- try adding a second primary key - should fail
alter table atacc1 add constraint atacc_test2 primary key (test);
ERROR: Existing attribute "test" cannot be a PRIMARY KEY because it is not marked NOT NULL
-- insert initial value
insert into atacc1 (test,test2) values (4,4);
-- should fail
insert into atacc1 (test,test2) values (4,4);
insert into atacc1 (test,test2) values (NULL,3);
insert into atacc1 (test,test2) values (3, NULL);
insert into atacc1 (test,test2) values (NULL,NULL);
-- should all succeed
insert into atacc1 (test,test2) values (4,5);
insert into atacc1 (test,test2) values (5,4);
insert into atacc1 (test,test2) values (5,5);
drop table atacc1;
-- lets do some naming tests
create table atacc1 (test int, test2 int, primary key(test));
NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index 'atacc1_pkey' for table 'atacc1'
-- only first should succeed
insert into atacc1 (test2, test) values (3, 3);
insert into atacc1 (test2, test) values (2, 3);
ERROR: Cannot insert a duplicate key into unique index atacc1_pkey
insert into atacc1 (test2, test) values (1, NULL);
ERROR: ExecAppend: Fail to add null value in not null attribute test
drop table atacc1;
-- alter table / alter column [set/drop] not null tests
-- try altering system catalogs, should fail
alter table pg_class alter column relname drop not null;
ERROR: ALTER TABLE: relation "pg_class" is a system catalog
alter table pg_class alter relname set not null;
ERROR: ALTER TABLE: relation "pg_class" is a system catalog
-- try altering non-existent table, should fail
alter table foo alter column bar set not null;
ERROR: Relation "foo" does not exist
alter table foo alter column bar drop not null;
ERROR: Relation "foo" does not exist
-- test setting columns to null and not null and vice versa
-- test checking for null values and primary key
create table atacc1 (test int not null);
alter table atacc1 add constraint "atacc1_pkey" primary key (test);
NOTICE: ALTER TABLE / ADD PRIMARY KEY will create implicit index 'atacc1_pkey' for table 'atacc1'
alter table atacc1 alter column test drop not null;
ERROR: ALTER TABLE: Attribute "test" is in a primary key
drop index atacc1_pkey;
alter table atacc1 alter column test drop not null;
insert into atacc1 values (null);
alter table atacc1 alter test set not null;
ERROR: ALTER TABLE: Attribute "test" contains NULL values
delete from atacc1;
alter table atacc1 alter test set not null;
-- try altering a non-existent column, should fail
alter table atacc1 alter bar set not null;
ERROR: ALTER TABLE: relation "atacc1" has no column "bar"
alter table atacc1 alter bar drop not null;
ERROR: ALTER TABLE: relation "atacc1" has no column "bar"
-- try altering the oid column, should fail
alter table atacc1 alter oid set not null;
ERROR: ALTER TABLE: Cannot alter system attribute "oid"
alter table atacc1 alter oid drop not null;
ERROR: ALTER TABLE: Cannot alter system attribute "oid"
-- try creating a view and altering that, should fail
create view myview as select * from atacc1;
alter table myview alter column test drop not null;
ERROR: ALTER TABLE: relation "myview" is not a table
alter table myview alter column test set not null;
ERROR: ALTER TABLE: relation "myview" is not a table
drop view myview;
drop table atacc1;
-- test inheritance
create table parent (a int);
create table child (b varchar(255)) inherits (parent);
alter table parent alter a set not null;
insert into parent values (NULL);
ERROR: ExecAppend: Fail to add null value in not null attribute a
insert into child (a, b) values (NULL, 'foo');
ERROR: ExecAppend: Fail to add null value in not null attribute a
alter table parent alter a drop not null;
insert into parent values (NULL);
insert into child (a, b) values (NULL, 'foo');
alter table only parent alter a set not null;
ERROR: ALTER TABLE: Attribute "a" contains NULL values
alter table child alter a set not null;
ERROR: ALTER TABLE: Attribute "a" contains NULL values
delete from parent;
alter table only parent alter a set not null;
insert into parent values (NULL);
ERROR: ExecAppend: Fail to add null value in not null attribute a
alter table child alter a set not null;
insert into child (a, b) values (NULL, 'foo');
ERROR: ExecAppend: Fail to add null value in not null attribute a
delete from child;
alter table child alter a set not null;
insert into child (a, b) values (NULL, 'foo');
ERROR: ExecAppend: Fail to add null value in not null attribute a
drop table child;
drop table parent;
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