citus/src/test/regress/sql/subqueries_not_supported.sql

91 lines
2.8 KiB
SQL

-- ===================================================================
-- test recursive planning functionality on failure cases
-- ===================================================================
CREATE SCHEMA not_supported;
SET search_path TO not_supported, public;
SET citus.coordinator_aggregation_strategy TO 'disabled';
SET client_min_messages TO DEBUG1;
CREATE TABLE users_table_local AS SELECT * FROM users_table;
RESET client_min_messages;
-- we don't support subqueries with local tables when they are not leaf queries
SELECT COUNT(user_id) FROM users_table WHERE user_id IN
(SELECT
user_id
FROM
users_table_local JOIN (SELECT user_id FROM events_table_local) as foo
USING (user_id)
);
SET client_min_messages TO DEBUG1;
-- we don't support aggregate distinct if the group by is not on partition key, expect for count distinct
-- thus baz and bar are recursively planned but not foo
SELECT
*
FROM
(
SELECT avg(DISTINCT value_1), random() FROM users_table GROUP BY user_id OFFSET 3
) as baz,
(
SELECT count(DISTINCT value_1), random() FROM users_table GROUP BY value_2 OFFSET 3
) as bar,
(
SELECT avg(DISTINCT value_1), random() FROM users_table GROUP BY value_2 OFFSET 3
) as foo;
-- we don't support array_aggs with ORDER BYs
SELECT
*
FROM
(
SELECT
array_agg(users_table.value_2 ORDER BY users_table.time)
FROM
users_table, (SELECT user_id FROM events_table) as evs
WHERE users_table.user_id = evs.user_id
GROUP BY users_table.value_2
LIMIT 5
) as foo;
-- we don't support recursive subqueries when router executor is disabled
SET citus.enable_router_execution TO false;
SELECT
user_id
FROM
(SELECT
DISTINCT users_table.user_id
FROM
users_table, events_table
WHERE
users_table.user_id = events_table.user_id AND
event_type IN (1,2,3,4)
ORDER BY 1 DESC LIMIT 5
) as foo
ORDER BY 1 DESC;
SET citus.enable_router_execution TO true;
-- OUTER JOINs where the outer part is recursively planned and not the other way
-- around is not supported
SELECT
foo.value_2
FROM
(SELECT users_table.value_2 FROM users_table, events_table WHERE users_table.user_id = events_table.user_id AND event_type IN (1,2,3,4) LIMIT 5) as foo
LEFT JOIN
(SELECT users_table.value_2 FROM users_table, events_table WHERE users_table.user_id = events_table.user_id AND event_type IN (5,6,7,8)) as bar
ON(foo.value_2 = bar.value_2);
-- We do not support GROUPING SETS in subqueries
-- This also includes ROLLUP or CUBE clauses
SELECT * FROM (SELECT user_id, value_1 FROM users_table GROUP BY GROUPING SETS ((user_id), (value_1))) s;
SELECT * FROM (SELECT user_id, value_1 FROM users_table GROUP BY ROLLUP (user_id, value_1)) s;
SELECT * FROM (SELECT user_id, value_1 FROM users_table GROUP BY CUBE (user_id, value_1)) s;
SET client_min_messages TO DEFAULT;
DROP SCHEMA not_supported CASCADE;
SET search_path TO public;