chaisql/sqltests/ALTER_TABLE/add_column.sql

-- setup:
CREATE TABLE test(a int primary key);

-- test: column constraints are updated
INSERT INTO test VALUES (1), (2);
ALTER TABLE test ADD COLUMN b int DEFAULT 0;
SELECT name, sql FROM __chai_catalog WHERE type = 'table' AND name = 'test';
/* result:
{
  name: 'test',
  sql: 'CREATE TABLE test (a INTEGER NOT NULL, b INTEGER DEFAULT 0, CONSTRAINT test_pk PRIMARY KEY (a))'
}
*/

-- test: default value is updated
INSERT INTO test VALUES (1), (2);
ALTER TABLE test ADD COLUMN b int DEFAULT 0;
SELECT * FROM test;
/* result:
{
  a: 1,
  b: 0
}
{
  a: 2,
  b: 0
}
*/

-- test: not null alone
INSERT INTO test VALUES (1), (2);
ALTER TABLE test ADD COLUMN b int NOT NULL;
-- error: NOT NULL constraint error: [b]

-- test: not null with default
INSERT INTO test VALUES (1), (2);
ALTER TABLE test ADD COLUMN b int NOT NULL DEFAULT 10;
SELECT * FROM test;
/* result:
{
  a: 1,
  b: 10,
}
{
  a: 2,
  b: 10
}
*/

-- test: unique
INSERT INTO test VALUES (1), (2);
ALTER TABLE test ADD COLUMN b int UNIQUE;
SELECT * FROM test;
/* result:
{
  a: 1,
  b: null
}
{
  a: 2,
  b: null
}
*/

-- test: unique with default: with data
INSERT INTO test VALUES (1), (2);
ALTER TABLE test ADD COLUMN b int UNIQUE DEFAULT 10;
-- error: UNIQUE constraint error: [b]

-- test: unique with default: without data
ALTER TABLE test ADD COLUMN b int UNIQUE DEFAULT 10;
INSERT INTO test VALUES (1), (2);
-- error: UNIQUE constraint error: [b]

-- test: primary key: with data
INSERT INTO test VALUES (1), (2);
ALTER TABLE test ADD COLUMN b int PRIMARY KEY;
-- error: multiple primary keys for table "test" are not allowed

-- test: primary key: without data
ALTER TABLE test ADD COLUMN b int PRIMARY KEY;
INSERT INTO test VALUES (1, 10), (2, 20);
SELECT a, b FROM test;
-- error: multiple primary keys for table "test" are not allowed

-- test: primary key: with default: with data
INSERT INTO test VALUES (1), (2);
ALTER TABLE test ADD COLUMN b int PRIMARY KEY DEFAULT 10;
-- error: multiple primary keys for table "test" are not allowed

-- test: primary key: with default: without data
ALTER TABLE test ADD COLUMN b int PRIMARY KEY DEFAULT 10;
-- error:

-- test: bad syntax: no type
INSERT INTO test VALUES (1), (2);
ALTER TABLE test ADD COLUMN b;
-- error:

-- test: bad syntax: no column name
ALTER TABLE test ADD COLUMN;
-- error:

-- test: bad syntax: missing column keyword
ALTER TABLE test ADD a int;
-- error: