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citus/src/test/regress/sql/multi_partitioning.sql

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--
-- Distributed Partitioned Table Tests
--
SET citus.next_shard_id TO 1660000;
SET citus.shard_count TO 4;
SET citus.shard_replication_factor TO 1;
-- print major version number for version-specific tests
SHOW server_version \gset
SELECT substring(:'server_version', '\d+')::int AS server_version;
--
-- Distributed Partitioned Table Creation Tests
--
-- 1-) Distributing partitioned table
-- create partitioned table
CREATE TABLE partitioning_test(id int, time date) PARTITION BY RANGE (time);
CREATE TABLE partitioning_hash_test(id int, subid int) PARTITION BY HASH(subid);
-- create its partitions
CREATE TABLE partitioning_test_2009 PARTITION OF partitioning_test FOR VALUES FROM ('2009-01-01') TO ('2010-01-01');
CREATE TABLE partitioning_test_2010 PARTITION OF partitioning_test FOR VALUES FROM ('2010-01-01') TO ('2011-01-01');
CREATE TABLE partitioning_hash_test_0 PARTITION OF partitioning_hash_test FOR VALUES WITH (MODULUS 3, REMAINDER 0);
CREATE TABLE partitioning_hash_test_1 PARTITION OF partitioning_hash_test FOR VALUES WITH (MODULUS 3, REMAINDER 1);
-- load some data and distribute tables
INSERT INTO partitioning_test VALUES (1, '2009-06-06');
INSERT INTO partitioning_test VALUES (2, '2010-07-07');
INSERT INTO partitioning_test_2009 VALUES (3, '2009-09-09');
INSERT INTO partitioning_test_2010 VALUES (4, '2010-03-03');
INSERT INTO partitioning_hash_test VALUES (1, 2);
INSERT INTO partitioning_hash_test VALUES (2, 13);
INSERT INTO partitioning_hash_test VALUES (3, 7);
INSERT INTO partitioning_hash_test VALUES (4, 4);
-- distribute partitioned table
SELECT create_distributed_table('partitioning_test', 'id');
SELECT create_distributed_table('partitioning_hash_test', 'id');
-- see the data is loaded to shards
SELECT * FROM partitioning_test ORDER BY 1;
SELECT * FROM partitioning_hash_test ORDER BY 1;
-- see partitioned table and its partitions are distributed
SELECT
logicalrelid
FROM
pg_dist_partition
WHERE
logicalrelid IN ('partitioning_test', 'partitioning_test_2009', 'partitioning_test_2010')
ORDER BY 1;
SELECT
logicalrelid, count(*)
FROM pg_dist_shard
WHERE logicalrelid IN ('partitioning_test', 'partitioning_test_2009', 'partitioning_test_2010')
GROUP BY
logicalrelid
ORDER BY
1,2;
SELECT
logicalrelid
FROM
pg_dist_partition
WHERE
logicalrelid IN ('partitioning_hash_test', 'partitioning_hash_test_0', 'partitioning_hash_test_1')
ORDER BY 1;
SELECT
logicalrelid, count(*)
FROM pg_dist_shard
WHERE logicalrelid IN ('partitioning_hash_test', 'partitioning_hash_test_0', 'partitioning_hash_test_1')
GROUP BY
logicalrelid
ORDER BY
1,2;
-- 2-) Creating partition of a distributed table
CREATE TABLE partitioning_test_2011 PARTITION OF partitioning_test FOR VALUES FROM ('2011-01-01') TO ('2012-01-01');
-- new partition is automatically distributed as well
SELECT
logicalrelid
FROM
pg_dist_partition
WHERE
logicalrelid IN ('partitioning_test', 'partitioning_test_2011')
ORDER BY 1;
SELECT
logicalrelid, count(*)
FROM pg_dist_shard
WHERE logicalrelid IN ('partitioning_test', 'partitioning_test_2011')
GROUP BY
logicalrelid
ORDER BY
1,2;
-- 3-) Attaching non distributed table to a distributed table
CREATE TABLE partitioning_test_2012(id int, time date);
-- load some data
INSERT INTO partitioning_test_2012 VALUES (5, '2012-06-06');
INSERT INTO partitioning_test_2012 VALUES (6, '2012-07-07');
ALTER TABLE partitioning_test ATTACH PARTITION partitioning_test_2012 FOR VALUES FROM ('2012-01-01') TO ('2013-01-01');
-- attached partition is distributed as well
SELECT
logicalrelid
FROM
pg_dist_partition
WHERE
logicalrelid IN ('partitioning_test', 'partitioning_test_2012')
ORDER BY 1;
SELECT
logicalrelid, count(*)
FROM pg_dist_shard
WHERE logicalrelid IN ('partitioning_test', 'partitioning_test_2012')
GROUP BY
logicalrelid
ORDER BY
1,2;
-- try to insert a new data to hash partitioned table
-- no partition is defined for value 5
INSERT INTO partitioning_hash_test VALUES (8, 5);
INSERT INTO partitioning_hash_test VALUES (9, 12);
CREATE TABLE partitioning_hash_test_2 (id int, subid int);
INSERT INTO partitioning_hash_test_2 VALUES (8, 5);
ALTER TABLE partitioning_hash_test ATTACH PARTITION partitioning_hash_test_2 FOR VALUES WITH (MODULUS 3, REMAINDER 2);
INSERT INTO partitioning_hash_test VALUES (9, 12);
-- see the data is loaded to shards
SELECT * FROM partitioning_test ORDER BY 1;
SELECT * FROM partitioning_hash_test ORDER BY 1;
-- 4-) Attaching distributed table to distributed table
CREATE TABLE partitioning_test_2013(id int, time date);
SELECT create_distributed_table('partitioning_test_2013', 'id');
-- load some data
INSERT INTO partitioning_test_2013 VALUES (7, '2013-06-06');
INSERT INTO partitioning_test_2013 VALUES (8, '2013-07-07');
ALTER TABLE partitioning_test ATTACH PARTITION partitioning_test_2013 FOR VALUES FROM ('2013-01-01') TO ('2014-01-01');
-- see the data is loaded to shards
SELECT * FROM partitioning_test ORDER BY 1;
-- 5-) Failure cases while creating distributed partitioned tables
-- cannot distribute a partition if its parent is not distributed
CREATE TABLE partitioning_test_failure(id int, time date) PARTITION BY RANGE (time);
CREATE TABLE partitioning_test_failure_2009 PARTITION OF partitioning_test_failure FOR VALUES FROM ('2009-01-01') TO ('2010-01-01');
SELECT create_distributed_table('partitioning_test_failure_2009', 'id');
-- only hash distributed tables can have partitions
SELECT create_distributed_table('partitioning_test_failure', 'id', 'append');
SELECT create_distributed_table('partitioning_test_failure', 'id', 'range');
SELECT create_reference_table('partitioning_test_failure');
-- replication factor > 1 is not allowed in distributed partitioned tables
SET citus.shard_replication_factor TO 2;
SELECT create_distributed_table('partitioning_test_failure', 'id');
SET citus.shard_replication_factor TO 1;
-- non-distributed tables cannot have distributed partitions;
DROP TABLE partitioning_test_failure_2009;
CREATE TABLE partitioning_test_failure_2009(id int, time date);
SELECT create_distributed_table('partitioning_test_failure_2009', 'id');
ALTER TABLE partitioning_test_failure ATTACH PARTITION partitioning_test_failure_2009 FOR VALUES FROM ('2009-01-01') TO ('2010-01-01');
-- multi-level partitioning is not allowed
DROP TABLE partitioning_test_failure_2009;
CREATE TABLE partitioning_test_failure_2009 PARTITION OF partitioning_test_failure FOR VALUES FROM ('2009-01-01') TO ('2010-01-01') PARTITION BY RANGE (time);
SELECT create_distributed_table('partitioning_test_failure', 'id');
-- multi-level partitioning is not allowed in different order
DROP TABLE partitioning_test_failure_2009;
SELECT create_distributed_table('partitioning_test_failure', 'id');
CREATE TABLE partitioning_test_failure_2009 PARTITION OF partitioning_test_failure FOR VALUES FROM ('2009-01-01') TO ('2010-01-01') PARTITION BY RANGE (time);
--
-- DMLs in distributed partitioned tables
--
-- test COPY
-- COPY data to partitioned table
COPY partitioning_test FROM STDIN WITH CSV;
9,2009-01-01
10,2010-01-01
11,2011-01-01
12,2012-01-01
\.
-- COPY data to partition directly
COPY partitioning_test_2009 FROM STDIN WITH CSV;
13,2009-01-02
14,2009-01-03
\.
-- see the data is loaded to shards
SELECT * FROM partitioning_test WHERE id >= 9 ORDER BY 1;
-- test INSERT
-- INSERT INTO the partitioned table
INSERT INTO partitioning_test VALUES(15, '2009-02-01');
INSERT INTO partitioning_test VALUES(16, '2010-02-01');
INSERT INTO partitioning_test VALUES(17, '2011-02-01');
INSERT INTO partitioning_test VALUES(18, '2012-02-01');
-- INSERT INTO the partitions directly table
INSERT INTO partitioning_test VALUES(19, '2009-02-02');
INSERT INTO partitioning_test VALUES(20, '2010-02-02');
-- see the data is loaded to shards
SELECT * FROM partitioning_test WHERE id >= 15 ORDER BY 1;
-- test INSERT/SELECT
-- INSERT/SELECT from partition to partitioned table
INSERT INTO partitioning_test SELECT * FROM partitioning_test_2011;
-- INSERT/SELECT from partitioned table to partition
INSERT INTO partitioning_test_2012 SELECT * FROM partitioning_test WHERE time >= '2012-01-01' AND time < '2013-01-01';
-- see the data is loaded to shards (rows in the given range should be duplicated)
SELECT * FROM partitioning_test WHERE time >= '2011-01-01' AND time < '2013-01-01' ORDER BY 1;
-- test UPDATE
-- UPDATE partitioned table
UPDATE partitioning_test SET time = '2013-07-07' WHERE id = 7;
-- UPDATE partition directly
UPDATE partitioning_test_2013 SET time = '2013-08-08' WHERE id = 8;
-- see the data is updated
SELECT * FROM partitioning_test WHERE id = 7 OR id = 8 ORDER BY 1;
-- UPDATE that tries to move a row to a non-existing partition (this should fail)
UPDATE partitioning_test SET time = '2020-07-07' WHERE id = 7;
-- UPDATE with subqueries on partitioned table
UPDATE
partitioning_test
SET
time = time + INTERVAL '1 day'
WHERE
id IN (SELECT id FROM partitioning_test WHERE id = 1);
-- UPDATE with subqueries on partition
UPDATE
partitioning_test_2009
SET
time = time + INTERVAL '1 month'
WHERE
id IN (SELECT id FROM partitioning_test WHERE id = 2);
-- see the data is updated
SELECT * FROM partitioning_test WHERE id = 1 OR id = 2 ORDER BY 1;
-- test DELETE
-- DELETE from partitioned table
DELETE FROM partitioning_test WHERE id = 9;
-- DELETE from partition directly
DELETE FROM partitioning_test_2010 WHERE id = 10;
-- see the data is deleted
SELECT * FROM partitioning_test WHERE id = 9 OR id = 10 ORDER BY 1;
-- create default partition
CREATE TABLE partitioning_test_default PARTITION OF partitioning_test DEFAULT;
\d+ partitioning_test
INSERT INTO partitioning_test VALUES(21, '2014-02-02');
INSERT INTO partitioning_test VALUES(22, '2015-04-02');
-- see they are inserted into default partition
SELECT * FROM partitioning_test WHERE id > 20;
SELECT * FROM partitioning_test_default;
-- create a new partition (will fail)
CREATE TABLE partitioning_test_2014 PARTITION OF partitioning_test FOR VALUES FROM ('2014-01-01') TO ('2015-01-01');
BEGIN;
ALTER TABLE partitioning_test DETACH PARTITION partitioning_test_default;
CREATE TABLE partitioning_test_2014 PARTITION OF partitioning_test FOR VALUES FROM ('2014-01-01') TO ('2015-01-01');
INSERT INTO partitioning_test SELECT * FROM partitioning_test_default WHERE time >= '2014-01-01' AND time < '2015-01-01';
DELETE FROM partitioning_test_default WHERE time >= '2014-01-01' AND time < '2015-01-01';
ALTER TABLE partitioning_test ATTACH PARTITION partitioning_test_default DEFAULT;
END;
-- see data is in the table, but some moved out from default partition
SELECT * FROM partitioning_test WHERE id > 20;
SELECT * FROM partitioning_test_default;
-- test master_modify_multiple_shards
-- master_modify_multiple_shards on partitioned table
SELECT master_modify_multiple_shards('UPDATE partitioning_test SET time = time + INTERVAL ''1 day''');
-- see rows are UPDATED
SELECT * FROM partitioning_test ORDER BY 1;
-- master_modify_multiple_shards on partition directly
SELECT master_modify_multiple_shards('UPDATE partitioning_test_2009 SET time = time + INTERVAL ''1 day''');
-- see rows are UPDATED
SELECT * FROM partitioning_test_2009 ORDER BY 1;
-- test master_modify_multiple_shards which fails in workers (updated value is outside of partition bounds)
SELECT master_modify_multiple_shards('UPDATE partitioning_test_2009 SET time = time + INTERVAL ''6 month''');
--
-- DDL in distributed partitioned tables
--
-- test CREATE INDEX
-- CREATE INDEX on partitioned table - this will error out
-- on earlier versions of postgres earlier than 11.
CREATE INDEX partitioning_index ON partitioning_test(id);
-- CREATE INDEX on partition
CREATE INDEX partitioning_2009_index ON partitioning_test_2009(id);
-- CREATE INDEX CONCURRENTLY on partition
CREATE INDEX CONCURRENTLY partitioned_2010_index ON partitioning_test_2010(id);
-- see index is created
SELECT tablename, indexname FROM pg_indexes WHERE tablename LIKE 'partitioning_test%' ORDER BY indexname;
-- test drop
-- indexes created on parent table can only be dropped on parent table
-- ie using the same index name
-- following will fail
DROP INDEX partitioning_test_2009_id_idx;
-- but dropping index on parent table will succeed
DROP INDEX partitioning_index;
-- this index was already created on partition table
DROP INDEX partitioning_2009_index;
-- test drop index on non-distributed, partitioned table
CREATE TABLE non_distributed_partitioned_table(a int, b int) PARTITION BY RANGE (a);
CREATE TABLE non_distributed_partitioned_table_1 PARTITION OF non_distributed_partitioned_table
FOR VALUES FROM (0) TO (10);
CREATE INDEX non_distributed_partitioned_table_index ON non_distributed_partitioned_table(a);
-- see index is created
SELECT tablename, indexname FROM pg_indexes WHERE tablename LIKE 'non_distributed%' ORDER BY indexname;
-- drop the index and see it is dropped
DROP INDEX non_distributed_partitioned_table_index;
SELECT tablename, indexname FROM pg_indexes WHERE tablename LIKE 'non_distributed%' ORDER BY indexname;
-- test add COLUMN
-- add COLUMN to partitioned table
ALTER TABLE partitioning_test ADD new_column int;
-- add COLUMN to partition - this will error out
ALTER TABLE partitioning_test_2010 ADD new_column_2 int;
-- see additional column is created
SELECT name, type FROM table_attrs WHERE relid = 'partitioning_test'::regclass ORDER BY 1;
SELECT name, type FROM table_attrs WHERE relid = 'partitioning_test_2010'::regclass ORDER BY 1;
-- test add PRIMARY KEY
-- add PRIMARY KEY to partitioned table - this will error out
ALTER TABLE partitioning_test ADD CONSTRAINT partitioning_primary PRIMARY KEY (id);
-- ADD PRIMARY KEY to partition
ALTER TABLE partitioning_test_2009 ADD CONSTRAINT partitioning_2009_primary PRIMARY KEY (id);
-- see PRIMARY KEY is created
SELECT
table_name,
constraint_name,
constraint_type
FROM
information_schema.table_constraints
WHERE
table_name = 'partitioning_test_2009' AND
constraint_name = 'partitioning_2009_primary';
-- however, you can add primary key if it contains both distribution and partition key
ALTER TABLE partitioning_hash_test ADD CONSTRAINT partitioning_hash_primary PRIMARY KEY (id, subid);
-- see PRIMARY KEY is created
SELECT
table_name,
constraint_name,
constraint_type
FROM
information_schema.table_constraints
WHERE
table_name LIKE 'partitioning_hash_test%' AND
constraint_type = 'PRIMARY KEY'
ORDER BY 1;
-- test ADD FOREIGN CONSTRAINT
-- add FOREIGN CONSTRAINT to partitioned table -- this will error out (it is a self reference)
ALTER TABLE partitioning_test ADD CONSTRAINT partitioning_foreign FOREIGN KEY (id) REFERENCES partitioning_test_2009 (id);
-- add FOREIGN CONSTRAINT to partition
INSERT INTO partitioning_test_2009 VALUES (5, '2009-06-06');
INSERT INTO partitioning_test_2009 VALUES (6, '2009-07-07');
INSERT INTO partitioning_test_2009 VALUES(12, '2009-02-01');
INSERT INTO partitioning_test_2009 VALUES(18, '2009-02-01');
ALTER TABLE partitioning_test_2012 ADD CONSTRAINT partitioning_2012_foreign FOREIGN KEY (id) REFERENCES partitioning_test_2009 (id) ON DELETE CASCADE;
-- see FOREIGN KEY is created
SELECT "Constraint" FROM table_fkeys WHERE relid = 'partitioning_test_2012'::regclass ORDER BY 1;
-- test ON DELETE CASCADE works
DELETE FROM partitioning_test_2009 WHERE id = 5;
-- see that element is deleted from both partitions
SELECT * FROM partitioning_test_2009 WHERE id = 5 ORDER BY 1;
SELECT * FROM partitioning_test_2012 WHERE id = 5 ORDER BY 1;
-- test DETACH partition
ALTER TABLE partitioning_test DETACH PARTITION partitioning_test_2009;
-- see DETACHed partitions content is not accessible from partitioning_test;
SELECT * FROM partitioning_test WHERE time >= '2009-01-01' AND time < '2010-01-01' ORDER BY 1;
-- delete from default partition
DELETE FROM partitioning_test WHERE time >= '2015-01-01';
SELECT * FROM partitioning_test_default;
-- create a reference table for foreign key test
CREATE TABLE partitioning_test_reference(id int PRIMARY KEY, subid int);
INSERT INTO partitioning_test_reference SELECT a, a FROM generate_series(1, 50) a;
SELECT create_reference_table('partitioning_test_reference');
ALTER TABLE partitioning_test ADD CONSTRAINT partitioning_reference_fkey FOREIGN KEY (id) REFERENCES partitioning_test_reference(id) ON DELETE CASCADE;
SELECT * FROM partitioning_test WHERE id = 11 or id = 12;
DELETE FROM partitioning_test_reference WHERE id = 11 or id = 12;
-- see data is deleted from referencing table
SELECT * FROM partitioning_test WHERE id = 11 or id = 12;
--
-- Transaction tests
--
-- DDL in transaction
BEGIN;
ALTER TABLE partitioning_test ADD newer_column int;
-- see additional column is created
SELECT name, type FROM table_attrs WHERE relid = 'partitioning_test'::regclass ORDER BY 1;
ROLLBACK;
-- see rollback is successful
SELECT name, type FROM table_attrs WHERE relid = 'partitioning_test'::regclass ORDER BY 1;
-- COPY in transaction
BEGIN;
COPY partitioning_test FROM STDIN WITH CSV;
22,2010-01-01,22
23,2011-01-01,23
24,2013-01-01,24
\.
-- see the data is loaded to shards
SELECT * FROM partitioning_test WHERE id = 22 ORDER BY 1;
SELECT * FROM partitioning_test WHERE id = 23 ORDER BY 1;
SELECT * FROM partitioning_test WHERE id = 24 ORDER BY 1;
ROLLBACK;
-- see rollback is successful
SELECT * FROM partitioning_test WHERE id >= 22 ORDER BY 1;
-- DML in transaction
BEGIN;
-- INSERT in transaction
INSERT INTO partitioning_test VALUES(25, '2010-02-02');
-- see the data is loaded to shards
SELECT * FROM partitioning_test WHERE id = 25 ORDER BY 1;
-- INSERT/SELECT in transaction
INSERT INTO partitioning_test SELECT * FROM partitioning_test WHERE id = 25;
-- see the data is loaded to shards
SELECT * FROM partitioning_test WHERE id = 25 ORDER BY 1;
-- UPDATE in transaction
UPDATE partitioning_test SET time = '2010-10-10' WHERE id = 25;
-- see the data is updated
SELECT * FROM partitioning_test WHERE id = 25 ORDER BY 1;
-- perform operations on partition and partioned tables together
INSERT INTO partitioning_test VALUES(26, '2010-02-02', 26);
INSERT INTO partitioning_test_2010 VALUES(26, '2010-02-02', 26);
COPY partitioning_test FROM STDIN WITH CSV;
26,2010-02-02,26
\.
COPY partitioning_test_2010 FROM STDIN WITH CSV;
26,2010-02-02,26
\.
-- see the data is loaded to shards (we should see 4 rows with same content)
SELECT * FROM partitioning_test WHERE id = 26 ORDER BY 1;
ROLLBACK;
-- see rollback is successful
SELECT * FROM partitioning_test WHERE id = 26 ORDER BY 1;
-- DETACH and DROP in a transaction
BEGIN;
ALTER TABLE partitioning_test DETACH PARTITION partitioning_test_2011;
DROP TABLE partitioning_test_2011;
COMMIT;
-- see DROPed partitions content is not accessible
SELECT * FROM partitioning_test WHERE time >= '2011-01-01' AND time < '2012-01-01' ORDER BY 1;
--
-- Misc tests
--
-- test TRUNCATE
-- test TRUNCATE partition
TRUNCATE partitioning_test_2012;
-- see partition is TRUNCATEd
SELECT * FROM partitioning_test_2012 ORDER BY 1;
-- test TRUNCATE partitioned table
TRUNCATE partitioning_test;
-- see partitioned table is TRUNCATEd
SELECT * FROM partitioning_test ORDER BY 1;
-- test DROP
-- test DROP partition
INSERT INTO partitioning_test_2010 VALUES(27, '2010-02-01');
DROP TABLE partitioning_test_2010;
-- see DROPped partitions content is not accessible from partitioning_test;
SELECT * FROM partitioning_test WHERE time >= '2010-01-01' AND time < '2011-01-01' ORDER BY 1;
-- test DROP partitioned table
DROP TABLE partitioning_test;
DROP TABLE partitioning_test_reference;
-- dropping the parent should CASCADE to the children as well
SELECT table_name FROM information_schema.tables WHERE table_name LIKE 'partitioning_test%' ORDER BY 1;
-- test distributing partitioned table colocated with non-partitioned table
CREATE TABLE partitioned_users_table (user_id int, time timestamp, value_1 int, value_2 int, value_3 float, value_4 bigint) PARTITION BY RANGE (time);
CREATE TABLE partitioned_events_table (user_id int, time timestamp, event_type int, value_2 int, value_3 float, value_4 bigint) PARTITION BY RANGE (time);
SELECT create_distributed_table('partitioned_users_table', 'user_id', colocate_with => 'users_table');
SELECT create_distributed_table('partitioned_events_table', 'user_id', colocate_with => 'events_table');
-- INSERT/SELECT from regular table to partitioned table
CREATE TABLE partitioned_users_table_2009 PARTITION OF partitioned_users_table FOR VALUES FROM ('2017-01-01') TO ('2018-01-01');
CREATE TABLE partitioned_events_table_2009 PARTITION OF partitioned_events_table FOR VALUES FROM ('2017-01-01') TO ('2018-01-01');
INSERT INTO partitioned_events_table SELECT * FROM events_table;
INSERT INTO partitioned_users_table_2009 SELECT * FROM users_table;
--
-- Complex JOINs, subqueries, UNIONs etc...
--
-- subquery with UNIONs on partitioned table
SELECT ("final_query"."event_types") as types, count(*) AS sumOfEventType
FROM
(SELECT *, random()
FROM
(SELECT
"t"."user_id", "t"."time", unnest("t"."collected_events") AS "event_types"
FROM
(SELECT
"t1"."user_id", min("t1"."time") AS "time", array_agg(("t1"."event") ORDER BY TIME ASC, event DESC) AS collected_events
FROM(
(SELECT
"events"."user_id", "events"."time", 0 AS event
FROM
partitioned_events_table as "events"
WHERE
event_type IN (1, 2) )
UNION
(SELECT
"events"."user_id", "events"."time", 1 AS event
FROM
partitioned_events_table as "events"
WHERE
event_type IN (3, 4) )
UNION
(SELECT
"events"."user_id", "events"."time", 2 AS event
FROM
partitioned_events_table as "events"
WHERE
event_type IN (5, 6) )
UNION
(SELECT
"events"."user_id", "events"."time", 3 AS event
FROM
partitioned_events_table as "events"
WHERE
event_type IN (1, 6))) t1
GROUP BY "t1"."user_id") AS t) "q"
) AS final_query
GROUP BY types
ORDER BY types;
-- UNION and JOIN on both partitioned and regular tables
SELECT ("final_query"."event_types") as types, count(*) AS sumOfEventType
FROM
(SELECT
*, random()
FROM
(SELECT
"t"."user_id", "t"."time", unnest("t"."collected_events") AS "event_types"
FROM
(SELECT
"t1"."user_id", min("t1"."time") AS "time", array_agg(("t1"."event") ORDER BY TIME ASC, event DESC) AS collected_events
FROM (
(SELECT
*
FROM
(SELECT
"events"."time", 0 AS event, "events"."user_id"
FROM
partitioned_events_table as "events"
WHERE
event_type IN (1, 2)) events_subquery_1)
UNION
(SELECT *
FROM
(
SELECT * FROM
(
SELECT
max("events"."time"),
0 AS event,
"events"."user_id"
FROM
events_table as "events", users_table as "users"
WHERE
events.user_id = users.user_id AND
event_type IN (1, 2)
GROUP BY "events"."user_id"
) as events_subquery_5
) events_subquery_2)
UNION
(SELECT *
FROM
(SELECT
"events"."time", 2 AS event, "events"."user_id"
FROM
partitioned_events_table as "events"
WHERE
event_type IN (3, 4)) events_subquery_3)
UNION
(SELECT *
FROM
(SELECT
"events"."time", 3 AS event, "events"."user_id"
FROM
events_table as "events"
WHERE
event_type IN (5, 6)) events_subquery_4)
) t1
GROUP BY "t1"."user_id") AS t) "q"
INNER JOIN
(SELECT
"users"."user_id"
FROM
partitioned_users_table as "users"
WHERE
value_1 > 2 and value_1 < 5) AS t
ON (t.user_id = q.user_id)) as final_query
GROUP BY
types
ORDER BY
types;
-- test LIST partitioning
CREATE TABLE list_partitioned_events_table (user_id int, time date, event_type int, value_2 int, value_3 float, value_4 bigint) PARTITION BY LIST (time);
CREATE TABLE list_partitioned_events_table_2014_01_01_05 PARTITION OF list_partitioned_events_table FOR VALUES IN ('2017-11-21', '2017-11-22', '2017-11-23', '2017-11-24', '2017-11-25');
CREATE TABLE list_partitioned_events_table_2014_01_06_10 PARTITION OF list_partitioned_events_table FOR VALUES IN ('2017-11-26', '2017-11-27', '2017-11-28', '2017-11-29', '2017-11-30');
CREATE TABLE list_partitioned_events_table_2014_01_11_15 PARTITION OF list_partitioned_events_table FOR VALUES IN ('2017-12-01', '2017-12-02', '2017-12-03', '2017-12-04', '2017-12-05');
-- test distributing partitioned table colocated with another partitioned table
SELECT create_distributed_table('list_partitioned_events_table', 'user_id', colocate_with => 'partitioned_events_table');
-- INSERT/SELECT from partitioned table to partitioned table
INSERT INTO
list_partitioned_events_table
SELECT
user_id,
date_trunc('day', time) as time,
event_type,
value_2,
value_3,
value_4
FROM
events_table
WHERE
time >= '2017-11-21' AND
time <= '2017-12-01';
-- LEFT JOINs used with INNER JOINs on range partitioned table, list partitioned table and non-partitioned table
SELECT
count(*) AS cnt, "generated_group_field"
FROM
(SELECT
"eventQuery"."user_id", random(), generated_group_field
FROM
(SELECT
"multi_group_wrapper_1".*, generated_group_field, random()
FROM
(SELECT *
FROM
(SELECT
"list_partitioned_events_table"."time", "list_partitioned_events_table"."user_id" as event_user_id
FROM
list_partitioned_events_table as "list_partitioned_events_table"
WHERE
user_id > 2) "temp_data_queries"
INNER JOIN
(SELECT
"users"."user_id"
FROM
partitioned_users_table as "users"
WHERE
user_id > 2 and value_2 = 1) "user_filters_1"
ON ("temp_data_queries".event_user_id = "user_filters_1".user_id)) AS "multi_group_wrapper_1"
LEFT JOIN
(SELECT
"users"."user_id" AS "user_id", value_2 AS "generated_group_field"
FROM
partitioned_users_table as "users") "left_group_by_1"
ON ("left_group_by_1".user_id = "multi_group_wrapper_1".event_user_id)) "eventQuery") "pushedDownQuery"
GROUP BY
"generated_group_field"
ORDER BY
cnt DESC, generated_group_field ASC
LIMIT 10;
--
-- Additional partitioning features
--
-- test multi column partitioning
CREATE TABLE multi_column_partitioning(c1 int, c2 int) PARTITION BY RANGE (c1, c2);
CREATE TABLE multi_column_partitioning_0_0_10_0 PARTITION OF multi_column_partitioning FOR VALUES FROM (0, 0) TO (10, 0);
SELECT create_distributed_table('multi_column_partitioning', 'c1');
-- test INSERT to multi-column partitioned table
INSERT INTO multi_column_partitioning VALUES(1, 1);
INSERT INTO multi_column_partitioning_0_0_10_0 VALUES(5, -5);
-- test INSERT to multi-column partitioned table where no suitable partition exists
INSERT INTO multi_column_partitioning VALUES(10, 1);
-- test with MINVALUE/MAXVALUE
CREATE TABLE multi_column_partitioning_10_max_20_min PARTITION OF multi_column_partitioning FOR VALUES FROM (10, MAXVALUE) TO (20, MINVALUE);
-- test INSERT to partition with MINVALUE/MAXVALUE bounds
INSERT INTO multi_column_partitioning VALUES(11, -11);
INSERT INTO multi_column_partitioning_10_max_20_min VALUES(19, -19);
-- test INSERT to multi-column partitioned table where no suitable partition exists
INSERT INTO multi_column_partitioning VALUES(20, -20);
-- see data is loaded to multi-column partitioned table
SELECT * FROM multi_column_partitioning ORDER BY 1, 2;
--
-- Tests for locks on partitioned tables
--
CREATE TABLE partitioning_locks(id int, ref_id int, time date) PARTITION BY RANGE (time);
-- create its partitions
CREATE TABLE partitioning_locks_2009 PARTITION OF partitioning_locks FOR VALUES FROM ('2009-01-01') TO ('2010-01-01');
CREATE TABLE partitioning_locks_2010 PARTITION OF partitioning_locks FOR VALUES FROM ('2010-01-01') TO ('2011-01-01');
-- distribute partitioned table
SELECT create_distributed_table('partitioning_locks', 'id');
-- test locks on router SELECT
BEGIN;
SELECT * FROM partitioning_locks WHERE id = 1 ORDER BY 1, 2;
SELECT relation::regclass, locktype, mode FROM pg_locks WHERE relation::regclass::text LIKE 'partitioning_locks%' AND pid = pg_backend_pid() ORDER BY 1, 2, 3;
COMMIT;
-- test locks on real-time SELECT
BEGIN;
SELECT * FROM partitioning_locks ORDER BY 1, 2;
SELECT relation::regclass, locktype, mode FROM pg_locks WHERE relation::regclass::text LIKE 'partitioning_locks%' AND pid = pg_backend_pid() ORDER BY 1, 2, 3;
COMMIT;
-- test locks on task-tracker SELECT
SET citus.task_executor_type TO 'task-tracker';
BEGIN;
SELECT * FROM partitioning_locks AS pl1 JOIN partitioning_locks AS pl2 ON pl1.id = pl2.ref_id ORDER BY 1, 2;
SELECT relation::regclass, locktype, mode FROM pg_locks WHERE relation::regclass::text LIKE 'partitioning_locks%' AND pid = pg_backend_pid() ORDER BY 1, 2, 3;
COMMIT;
SET citus.task_executor_type TO 'real-time';
-- test locks on INSERT
BEGIN;
INSERT INTO partitioning_locks VALUES(1, 1, '2009-01-01');
SELECT relation::regclass, locktype, mode FROM pg_locks WHERE relation::regclass::text LIKE 'partitioning_locks%' AND pid = pg_backend_pid() ORDER BY 1, 2, 3;
COMMIT;
-- test locks on UPDATE
BEGIN;
UPDATE partitioning_locks SET time = '2009-02-01' WHERE id = 1;
SELECT relation::regclass, locktype, mode FROM pg_locks WHERE relation::regclass::text LIKE 'partitioning_locks%' AND pid = pg_backend_pid() ORDER BY 1, 2, 3;
COMMIT;
-- test locks on DELETE
BEGIN;
DELETE FROM partitioning_locks WHERE id = 1;
SELECT relation::regclass, locktype, mode FROM pg_locks WHERE relation::regclass::text LIKE 'partitioning_locks%' AND pid = pg_backend_pid() ORDER BY 1, 2, 3;
COMMIT;
-- test locks on INSERT/SELECT
CREATE TABLE partitioning_locks_for_select(id int, ref_id int, time date);
SELECT create_distributed_table('partitioning_locks_for_select', 'id');
BEGIN;
INSERT INTO partitioning_locks SELECT * FROM partitioning_locks_for_select;
SELECT relation::regclass, locktype, mode FROM pg_locks WHERE relation::regclass::text LIKE 'partitioning_locks%' AND pid = pg_backend_pid() ORDER BY 1, 2, 3;
COMMIT;
-- test locks on coordinator INSERT/SELECT
BEGIN;
INSERT INTO partitioning_locks SELECT * FROM partitioning_locks_for_select LIMIT 5;
SELECT relation::regclass, locktype, mode FROM pg_locks WHERE relation::regclass::text LIKE 'partitioning_locks%' AND pid = pg_backend_pid() ORDER BY 1, 2, 3;
COMMIT;
-- test locks on master_modify_multiple_shards
BEGIN;
SELECT master_modify_multiple_shards('UPDATE partitioning_locks SET time = ''2009-03-01''');
SELECT relation::regclass, locktype, mode FROM pg_locks WHERE relation::regclass::text LIKE 'partitioning_locks%' AND pid = pg_backend_pid() ORDER BY 1, 2, 3;
COMMIT;
-- test locks on DDL
BEGIN;
ALTER TABLE partitioning_locks ADD COLUMN new_column int;
SELECT relation::regclass, locktype, mode FROM pg_locks WHERE relation::regclass::text LIKE 'partitioning_locks%' AND pid = pg_backend_pid() ORDER BY 1, 2, 3;
COMMIT;
-- test locks on TRUNCATE
BEGIN;
TRUNCATE partitioning_locks;
SELECT relation::regclass, locktype, mode FROM pg_locks WHERE relation::regclass::text LIKE 'partitioning_locks%' AND pid = pg_backend_pid() ORDER BY 1, 2, 3;
COMMIT;
-- test shard resource locks with master_modify_multiple_shards
BEGIN;
SELECT master_modify_multiple_shards('UPDATE partitioning_locks_2009 SET time = ''2009-03-01''');
-- see the locks on parent table
SELECT
logicalrelid,
locktype,
mode
FROM
pg_locks AS l JOIN pg_dist_shard AS s
ON
l.objid = s.shardid
WHERE
logicalrelid IN ('partitioning_locks', 'partitioning_locks_2009', 'partitioning_locks_2010') AND
pid = pg_backend_pid()
ORDER BY
1, 2, 3;
COMMIT;
-- test shard resource locks with TRUNCATE
BEGIN;
TRUNCATE partitioning_locks_2009;
-- see the locks on parent table
SELECT
logicalrelid,
locktype,
mode
FROM
pg_locks AS l JOIN pg_dist_shard AS s
ON
l.objid = s.shardid
WHERE
logicalrelid IN ('partitioning_locks', 'partitioning_locks_2009', 'partitioning_locks_2010') AND
pid = pg_backend_pid()
ORDER BY
1, 2, 3;
COMMIT;
-- test shard resource locks with INSERT/SELECT
BEGIN;
INSERT INTO partitioning_locks_2009 SELECT * FROM partitioning_locks WHERE time >= '2009-01-01' AND time < '2010-01-01';
-- see the locks on parent table
SELECT
logicalrelid,
locktype,
mode
FROM
pg_locks AS l JOIN pg_dist_shard AS s
ON
l.objid = s.shardid
WHERE
logicalrelid IN ('partitioning_locks', 'partitioning_locks_2009', 'partitioning_locks_2010') AND
pid = pg_backend_pid()
ORDER BY
1, 2, 3;
COMMIT;
-- test partition-wise join
CREATE TABLE partitioning_hash_join_test(id int, subid int) PARTITION BY HASH(subid);
CREATE TABLE partitioning_hash_join_test_0 PARTITION OF partitioning_hash_join_test FOR VALUES WITH (MODULUS 3, REMAINDER 0);
CREATE TABLE partitioning_hash_join_test_1 PARTITION OF partitioning_hash_join_test FOR VALUES WITH (MODULUS 3, REMAINDER 1);
CREATE TABLE partitioning_hash_join_test_2 PARTITION OF partitioning_hash_join_test FOR VALUES WITH (MODULUS 3, REMAINDER 2);
SELECT create_distributed_table('partitioning_hash_join_test', 'id');
-- see the query plan without partition-wise join
EXPLAIN
SELECT * FROM partitioning_hash_test JOIN partitioning_hash_join_test USING (id, subid);
-- set partition-wise join on
SELECT success FROM run_command_on_workers('alter system set enable_partitionwise_join to on');
SELECT success FROM run_command_on_workers('select pg_reload_conf()');
SET enable_partitionwise_join TO on;
-- see the new query plan
EXPLAIN
SELECT * FROM partitioning_hash_test JOIN partitioning_hash_join_test USING (id, subid);
-- note that partition-wise joins only work when partition key is in the join
-- following join does not have that, therefore join will not be pushed down to
-- partitions
EXPLAIN
SELECT * FROM partitioning_hash_test JOIN partitioning_hash_join_test USING (id);
-- reset partition-wise join
SELECT success FROM run_command_on_workers('reset enable_partitionwise_join');
SELECT success FROM run_command_on_workers('select pg_reload_conf()');
RESET enable_partitionwise_join;
DROP TABLE
IF EXISTS
partitioning_test_2009,
partitioned_events_table,
partitioned_users_table,
list_partitioned_events_table,
multi_column_partitioning,
partitioning_locks,
partitioning_locks_for_select;
-- make sure we can create a partitioned table with streaming replication
SET citus.replication_model TO 'streaming';
CREATE TABLE partitioning_test(id int, time date) PARTITION BY RANGE (time);
CREATE TABLE partitioning_test_2009 PARTITION OF partitioning_test FOR VALUES FROM ('2009-01-01') TO ('2010-01-01');
SELECT create_distributed_table('partitioning_test', 'id');
DROP TABLE partitioning_test;
-- make sure we can attach partitions to a distributed table in a schema
CREATE SCHEMA partitioning_schema;
CREATE TABLE partitioning_schema."schema-test"(id int, time date) PARTITION BY RANGE (time);
SELECT create_distributed_table('partitioning_schema."schema-test"', 'id');
CREATE TABLE partitioning_schema."schema-test_2009"(id int, time date);
ALTER TABLE partitioning_schema."schema-test" ATTACH PARTITION partitioning_schema."schema-test_2009" FOR VALUES FROM ('2009-01-01') TO ('2010-01-01');
-- attached partition is distributed as well
SELECT
logicalrelid
FROM
pg_dist_partition
WHERE
logicalrelid IN ('partitioning_schema."schema-test"'::regclass, 'partitioning_schema."schema-test_2009"'::regclass)
ORDER BY 1;
SELECT
logicalrelid, count(*)
FROM
pg_dist_shard
WHERE
logicalrelid IN ('partitioning_schema."schema-test"'::regclass, 'partitioning_schema."schema-test_2009"'::regclass)
GROUP BY
logicalrelid
ORDER BY
1,2;
DROP TABLE partitioning_schema."schema-test";
-- make sure we can create partition of a distributed table in a schema
CREATE TABLE partitioning_schema."schema-test"(id int, time date) PARTITION BY RANGE (time);
SELECT create_distributed_table('partitioning_schema."schema-test"', 'id');
CREATE TABLE partitioning_schema."schema-test_2009" PARTITION OF partitioning_schema."schema-test" FOR VALUES FROM ('2009-01-01') TO ('2010-01-01');
-- newly created partition is distributed as well
SELECT
logicalrelid
FROM
pg_dist_partition
WHERE
logicalrelid IN ('partitioning_schema."schema-test"'::regclass, 'partitioning_schema."schema-test_2009"'::regclass)
ORDER BY 1;
SELECT
logicalrelid, count(*)
FROM
pg_dist_shard
WHERE
logicalrelid IN ('partitioning_schema."schema-test"'::regclass, 'partitioning_schema."schema-test_2009"'::regclass)
GROUP BY
logicalrelid
ORDER BY
1,2;
DROP TABLE partitioning_schema."schema-test";
-- make sure creating partitioned tables works while search_path is set
CREATE TABLE partitioning_schema."schema-test"(id int, time date) PARTITION BY RANGE (time);
SET search_path = partitioning_schema;
SELECT create_distributed_table('"schema-test"', 'id');
CREATE TABLE partitioning_schema."schema-test_2009" PARTITION OF "schema-test" FOR VALUES FROM ('2009-01-01') TO ('2010-01-01');
-- newly created partition is distributed as well
SELECT
logicalrelid
FROM
pg_dist_partition
WHERE
logicalrelid IN ('partitioning_schema."schema-test"'::regclass, 'partitioning_schema."schema-test_2009"'::regclass)
ORDER BY 1;
SELECT
logicalrelid, count(*)
FROM
pg_dist_shard
WHERE
logicalrelid IN ('partitioning_schema."schema-test"'::regclass, 'partitioning_schema."schema-test_2009"'::regclass)
GROUP BY
logicalrelid
ORDER BY
1,2;
DROP SCHEMA partitioning_schema CASCADE;
RESET SEARCH_PATH;
DROP TABLE IF EXISTS
partitioning_hash_test,
partitioning_hash_join_test,
partitioning_test_failure,
non_distributed_partitioned_table;
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