mirror of https://github.com/citusdata/citus.git
245 lines
6.8 KiB
Plaintext
245 lines
6.8 KiB
Plaintext
--
|
|
-- Testing ALTER TABLE on columnar tables.
|
|
--
|
|
CREATE SCHEMA columnar_alter;
|
|
SET search_path tO columnar_alter, public;
|
|
CREATE TABLE test_alter_table (a int, b int, c int) USING columnar;
|
|
WITH sample_data AS (VALUES
|
|
(1, 2, 3),
|
|
(4, 5, 6),
|
|
(7, 8, 9)
|
|
)
|
|
INSERT INTO test_alter_table SELECT * FROM sample_data;
|
|
-- drop a column
|
|
ALTER TABLE test_alter_table DROP COLUMN a;
|
|
-- test analyze
|
|
ANALYZE test_alter_table;
|
|
-- verify select queries run as expected
|
|
SELECT * FROM test_alter_table;
|
|
b | c
|
|
---------------------------------------------------------------------
|
|
2 | 3
|
|
5 | 6
|
|
8 | 9
|
|
(3 rows)
|
|
|
|
SELECT a FROM test_alter_table;
|
|
ERROR: column "a" does not exist
|
|
SELECT b FROM test_alter_table;
|
|
b
|
|
---------------------------------------------------------------------
|
|
2
|
|
5
|
|
8
|
|
(3 rows)
|
|
|
|
-- verify insert runs as expected
|
|
INSERT INTO test_alter_table (SELECT 3, 5, 8);
|
|
ERROR: INSERT has more expressions than target columns
|
|
INSERT INTO test_alter_table (SELECT 5, 8);
|
|
-- add a column with no defaults
|
|
ALTER TABLE test_alter_table ADD COLUMN d int;
|
|
SELECT * FROM test_alter_table;
|
|
b | c | d
|
|
---------------------------------------------------------------------
|
|
2 | 3 |
|
|
5 | 6 |
|
|
8 | 9 |
|
|
5 | 8 |
|
|
(4 rows)
|
|
|
|
INSERT INTO test_alter_table (SELECT 3, 5, 8);
|
|
SELECT * FROM test_alter_table;
|
|
b | c | d
|
|
---------------------------------------------------------------------
|
|
2 | 3 |
|
|
5 | 6 |
|
|
8 | 9 |
|
|
5 | 8 |
|
|
3 | 5 | 8
|
|
(5 rows)
|
|
|
|
-- add a fixed-length column with default value
|
|
ALTER TABLE test_alter_table ADD COLUMN e int default 3;
|
|
SELECT * from test_alter_table;
|
|
b | c | d | e
|
|
---------------------------------------------------------------------
|
|
2 | 3 | | 3
|
|
5 | 6 | | 3
|
|
8 | 9 | | 3
|
|
5 | 8 | | 3
|
|
3 | 5 | 8 | 3
|
|
(5 rows)
|
|
|
|
INSERT INTO test_alter_table (SELECT 1, 2, 4, 8);
|
|
SELECT * from test_alter_table;
|
|
b | c | d | e
|
|
---------------------------------------------------------------------
|
|
2 | 3 | | 3
|
|
5 | 6 | | 3
|
|
8 | 9 | | 3
|
|
5 | 8 | | 3
|
|
3 | 5 | 8 | 3
|
|
1 | 2 | 4 | 8
|
|
(6 rows)
|
|
|
|
-- add a variable-length column with default value
|
|
ALTER TABLE test_alter_table ADD COLUMN f text DEFAULT 'TEXT ME';
|
|
SELECT * from test_alter_table;
|
|
b | c | d | e | f
|
|
---------------------------------------------------------------------
|
|
2 | 3 | | 3 | TEXT ME
|
|
5 | 6 | | 3 | TEXT ME
|
|
8 | 9 | | 3 | TEXT ME
|
|
5 | 8 | | 3 | TEXT ME
|
|
3 | 5 | 8 | 3 | TEXT ME
|
|
1 | 2 | 4 | 8 | TEXT ME
|
|
(6 rows)
|
|
|
|
INSERT INTO test_alter_table (SELECT 1, 2, 4, 8, 'ABCDEF');
|
|
SELECT * from test_alter_table;
|
|
b | c | d | e | f
|
|
---------------------------------------------------------------------
|
|
2 | 3 | | 3 | TEXT ME
|
|
5 | 6 | | 3 | TEXT ME
|
|
8 | 9 | | 3 | TEXT ME
|
|
5 | 8 | | 3 | TEXT ME
|
|
3 | 5 | 8 | 3 | TEXT ME
|
|
1 | 2 | 4 | 8 | TEXT ME
|
|
1 | 2 | 4 | 8 | ABCDEF
|
|
(7 rows)
|
|
|
|
-- drop couple of columns
|
|
ALTER TABLE test_alter_table DROP COLUMN c;
|
|
ALTER TABLE test_alter_table DROP COLUMN e;
|
|
ANALYZE test_alter_table;
|
|
SELECT * from test_alter_table;
|
|
b | d | f
|
|
---------------------------------------------------------------------
|
|
2 | | TEXT ME
|
|
5 | | TEXT ME
|
|
8 | | TEXT ME
|
|
5 | | TEXT ME
|
|
3 | 8 | TEXT ME
|
|
1 | 4 | TEXT ME
|
|
1 | 4 | ABCDEF
|
|
(7 rows)
|
|
|
|
SELECT count(*) from test_alter_table;
|
|
count
|
|
---------------------------------------------------------------------
|
|
7
|
|
(1 row)
|
|
|
|
SELECT count(t.*) from test_alter_table t;
|
|
count
|
|
---------------------------------------------------------------------
|
|
7
|
|
(1 row)
|
|
|
|
-- unsupported default values
|
|
ALTER TABLE test_alter_table ADD COLUMN g boolean DEFAULT isfinite(current_date);
|
|
ALTER TABLE test_alter_table ADD COLUMN h DATE DEFAULT current_date;
|
|
SELECT * FROM test_alter_table;
|
|
ERROR: unsupported default value for column "g"
|
|
HINT: Expression is either mutable or does not evaluate to constant value
|
|
ALTER TABLE test_alter_table ALTER COLUMN g DROP DEFAULT;
|
|
SELECT * FROM test_alter_table;
|
|
ERROR: unsupported default value for column "h"
|
|
HINT: Expression is either mutable or does not evaluate to constant value
|
|
ALTER TABLE test_alter_table ALTER COLUMN h DROP DEFAULT;
|
|
ANALYZE test_alter_table;
|
|
SELECT * FROM test_alter_table;
|
|
b | d | f | g | h
|
|
---------------------------------------------------------------------
|
|
2 | | TEXT ME | |
|
|
5 | | TEXT ME | |
|
|
8 | | TEXT ME | |
|
|
5 | | TEXT ME | |
|
|
3 | 8 | TEXT ME | |
|
|
1 | 4 | TEXT ME | |
|
|
1 | 4 | ABCDEF | |
|
|
(7 rows)
|
|
|
|
-- unsupported type change
|
|
ALTER TABLE test_alter_table ADD COLUMN i int;
|
|
ALTER TABLE test_alter_table ADD COLUMN j float;
|
|
ALTER TABLE test_alter_table ADD COLUMN k text;
|
|
-- this is valid type change
|
|
ALTER TABLE test_alter_table ALTER COLUMN i TYPE float;
|
|
-- this is not valid
|
|
ALTER TABLE test_alter_table ALTER COLUMN j TYPE int;
|
|
-- text / varchar conversion is valid both ways
|
|
ALTER TABLE test_alter_table ALTER COLUMN k TYPE varchar(20);
|
|
ALTER TABLE test_alter_table ALTER COLUMN k TYPE text;
|
|
DROP TABLE test_alter_table;
|
|
-- https://github.com/citusdata/citus/issues/4602
|
|
create domain str_domain as text not null;
|
|
create table domain_test (a int, b int) using columnar;
|
|
insert into domain_test values (1, 2);
|
|
insert into domain_test values (1, 2);
|
|
-- the following should error out since the domain is not nullable
|
|
alter table domain_test add column c str_domain;
|
|
ERROR: domain str_domain does not allow null values
|
|
-- but this should succeed
|
|
alter table domain_test add column c str_domain DEFAULT 'x';
|
|
SELECT * FROM domain_test;
|
|
a | b | c
|
|
---------------------------------------------------------------------
|
|
1 | 2 | x
|
|
1 | 2 | x
|
|
(2 rows)
|
|
|
|
set default_table_access_method TO 'columnar';
|
|
CREATE TABLE has_volatile AS
|
|
SELECT * FROM generate_series(1,10) id;
|
|
ALTER TABLE has_volatile ADD col4 int DEFAULT (random() * 10000)::int;
|
|
SELECT id, col4 < 10000 FROM has_volatile ORDER BY id;
|
|
id | ?column?
|
|
---------------------------------------------------------------------
|
|
1 | t
|
|
2 | t
|
|
3 | t
|
|
4 | t
|
|
5 | t
|
|
6 | t
|
|
7 | t
|
|
8 | t
|
|
9 | t
|
|
10 | t
|
|
(10 rows)
|
|
|
|
-- https://github.com/citusdata/citus/issues/4601
|
|
CREATE TABLE itest13 (a int) using columnar;
|
|
INSERT INTO itest13 VALUES (1), (2), (3);
|
|
ALTER TABLE itest13 ADD COLUMN c int GENERATED BY DEFAULT AS IDENTITY;
|
|
SELECT * FROM itest13 ORDER BY a;
|
|
a | c
|
|
---------------------------------------------------------------------
|
|
1 | 1
|
|
2 | 2
|
|
3 | 3
|
|
(3 rows)
|
|
|
|
create table atacc1 (a int) using columnar;
|
|
insert into atacc1 values(1);
|
|
-- should error out. It previously crashed.
|
|
alter table atacc1
|
|
add column b float8 not null default random(),
|
|
add primary key(a);
|
|
ERROR: indexes not supported for columnar tables
|
|
-- Add a generate column with an expression value
|
|
create table test_gen_ex (x int) using columnar;
|
|
INSERT INTO test_gen_ex VALUES (1), (2), (3);
|
|
ALTER TABLE test_gen_ex ADD COLUMN y int generated always as (x+1) stored;
|
|
SELECT * FROM test_gen_ex;
|
|
x | y
|
|
---------------------------------------------------------------------
|
|
1 | 2
|
|
2 | 3
|
|
3 | 4
|
|
(3 rows)
|
|
|
|
SET client_min_messages TO WARNING;
|
|
DROP SCHEMA columnar_alter CASCADE;
|