--
-- MULTI_SINGLE_HASH_REPARTITION_JOIN
--
CREATE SCHEMA single_hash_repartition;
SET search_path TO 'single_hash_repartition';
SET citus.enable_single_hash_repartition_joins TO ON;
CREATE TABLE single_hash_repartition_first (id int, sum int, avg float);
CREATE TABLE single_hash_repartition_second (id int, sum int, avg float);
CREATE TABLE ref_table (id int, sum int, avg float);
SET citus.shard_count TO 4;
SELECT create_distributed_table('single_hash_repartition_first', 'id');
 create_distributed_table
---------------------------------------------------------------------

(1 row)

SELECT create_distributed_table('single_hash_repartition_second', 'id');
 create_distributed_table
---------------------------------------------------------------------

(1 row)

SELECT create_reference_table('ref_table');
 create_reference_table
---------------------------------------------------------------------

(1 row)

SET citus.log_multi_join_order TO ON;
SET client_min_messages TO DEBUG2;
-- a very basic single hash re-partitioning example
EXPLAIN SELECT
	count(*)
FROM
	single_hash_repartition_first t1, single_hash_repartition_second t2
WHERE
	t1.id = t2.sum;
DEBUG:  Router planner cannot handle multi-shard select queries
LOG:  join order: [ "single_hash_repartition_first" ][ single hash partition join "single_hash_repartition_second" ]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [-1073741824,-1]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [0,1073741823]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [-1073741824,-1] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [-1073741824,-1] and [0,1073741823]
DEBUG:  join prunable for intervals [-1073741824,-1] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [0,1073741823] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [0,1073741823] and [-1073741824,-1]
DEBUG:  join prunable for intervals [0,1073741823] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [-1073741824,-1]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [0,1073741823]
DEBUG:  pruning merge fetch taskId 1
DETAIL:  Creating dependency on merge taskId 5
DEBUG:  pruning merge fetch taskId 3
DETAIL:  Creating dependency on merge taskId 10
DEBUG:  pruning merge fetch taskId 5
DETAIL:  Creating dependency on merge taskId 15
DEBUG:  pruning merge fetch taskId 7
DETAIL:  Creating dependency on merge taskId 20
ERROR:  the query contains a join that requires repartitioning
HINT:  Set citus.enable_repartition_joins to on to enable repartitioning
-- the same query with the orders of the tables have changed
EXPLAIN SELECT
	count(*)
FROM
	single_hash_repartition_second t1, single_hash_repartition_first t2
WHERE
	t2.sum = t1.id;
DEBUG:  Router planner cannot handle multi-shard select queries
LOG:  join order: [ "single_hash_repartition_second" ][ single hash partition join "single_hash_repartition_first" ]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [-1073741824,-1]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [0,1073741823]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [-1073741824,-1] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [-1073741824,-1] and [0,1073741823]
DEBUG:  join prunable for intervals [-1073741824,-1] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [0,1073741823] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [0,1073741823] and [-1073741824,-1]
DEBUG:  join prunable for intervals [0,1073741823] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [-1073741824,-1]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [0,1073741823]
DEBUG:  pruning merge fetch taskId 1
DETAIL:  Creating dependency on merge taskId 5
DEBUG:  pruning merge fetch taskId 3
DETAIL:  Creating dependency on merge taskId 10
DEBUG:  pruning merge fetch taskId 5
DETAIL:  Creating dependency on merge taskId 15
DEBUG:  pruning merge fetch taskId 7
DETAIL:  Creating dependency on merge taskId 20
ERROR:  the query contains a join that requires repartitioning
HINT:  Set citus.enable_repartition_joins to on to enable repartitioning
-- single hash repartition after bcast joins
EXPLAIN SELECT
	count(*)
FROM
	ref_table r1, single_hash_repartition_second t1, single_hash_repartition_first t2
WHERE
	r1.id = t1.id AND t2.sum = t1.id;
DEBUG:  Router planner cannot handle multi-shard select queries
LOG:  join order: [ "single_hash_repartition_second" ][ reference join "ref_table" ][ single hash partition join "single_hash_repartition_first" ]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [-1073741824,-1]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [0,1073741823]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [-1073741824,-1] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [-1073741824,-1] and [0,1073741823]
DEBUG:  join prunable for intervals [-1073741824,-1] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [0,1073741823] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [0,1073741823] and [-1073741824,-1]
DEBUG:  join prunable for intervals [0,1073741823] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [-1073741824,-1]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [0,1073741823]
DEBUG:  pruning merge fetch taskId 1
DETAIL:  Creating dependency on merge taskId 5
DEBUG:  pruning merge fetch taskId 3
DETAIL:  Creating dependency on merge taskId 10
DEBUG:  pruning merge fetch taskId 5
DETAIL:  Creating dependency on merge taskId 15
DEBUG:  pruning merge fetch taskId 7
DETAIL:  Creating dependency on merge taskId 20
ERROR:  the query contains a join that requires repartitioning
HINT:  Set citus.enable_repartition_joins to on to enable repartitioning
-- a more complicated join order, first colocated join, later single hash repartition join
EXPLAIN SELECT
	count(*)
FROM
	single_hash_repartition_first t1, single_hash_repartition_first t2, single_hash_repartition_second t3
WHERE
	t1.id = t2.id AND t1.sum = t3.id;
DEBUG:  Router planner cannot handle multi-shard select queries
LOG:  join order: [ "single_hash_repartition_first" ][ local partition join "single_hash_repartition_first" ][ single hash partition join "single_hash_repartition_second" ]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [-1073741824,-1]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [0,1073741823]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [-1073741824,-1] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [-1073741824,-1] and [0,1073741823]
DEBUG:  join prunable for intervals [-1073741824,-1] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [0,1073741823] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [0,1073741823] and [-1073741824,-1]
DEBUG:  join prunable for intervals [0,1073741823] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [-1073741824,-1]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [0,1073741823]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [-1073741824,-1]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [0,1073741823]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [-1073741824,-1] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [-1073741824,-1] and [0,1073741823]
DEBUG:  join prunable for intervals [-1073741824,-1] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [0,1073741823] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [0,1073741823] and [-1073741824,-1]
DEBUG:  join prunable for intervals [0,1073741823] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [-1073741824,-1]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [0,1073741823]
DEBUG:  pruning merge fetch taskId 1
DETAIL:  Creating dependency on merge taskId 5
DEBUG:  pruning merge fetch taskId 3
DETAIL:  Creating dependency on merge taskId 10
DEBUG:  pruning merge fetch taskId 5
DETAIL:  Creating dependency on merge taskId 15
DEBUG:  pruning merge fetch taskId 7
DETAIL:  Creating dependency on merge taskId 20
ERROR:  the query contains a join that requires repartitioning
HINT:  Set citus.enable_repartition_joins to on to enable repartitioning
-- a more complicated join order, first hash-repartition join, later single hash repartition join
EXPLAIN SELECT
	count(*)
FROM
	single_hash_repartition_first t1, single_hash_repartition_first t2, single_hash_repartition_second t3
WHERE
	t1.sum = t2.sum AND t1.sum = t3.id;
DEBUG:  Router planner cannot handle multi-shard select queries
LOG:  join order: [ "single_hash_repartition_first" ][ single hash partition join "single_hash_repartition_second" ][ dual partition join "single_hash_repartition_first" ]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [-1073741824,-1]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [0,1073741823]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [-1073741824,-1] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [-1073741824,-1] and [0,1073741823]
DEBUG:  join prunable for intervals [-1073741824,-1] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [0,1073741823] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [0,1073741823] and [-1073741824,-1]
DEBUG:  join prunable for intervals [0,1073741823] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [-1073741824,-1]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [0,1073741823]
DEBUG:  pruning merge fetch taskId 1
DETAIL:  Creating dependency on merge taskId 5
DEBUG:  pruning merge fetch taskId 3
DETAIL:  Creating dependency on merge taskId 10
DEBUG:  pruning merge fetch taskId 5
DETAIL:  Creating dependency on merge taskId 15
DEBUG:  pruning merge fetch taskId 7
DETAIL:  Creating dependency on merge taskId 20
DEBUG:  join prunable for task partitionId 0 and 1
DEBUG:  join prunable for task partitionId 0 and 2
DEBUG:  join prunable for task partitionId 0 and 3
DEBUG:  join prunable for task partitionId 0 and 4
DEBUG:  join prunable for task partitionId 0 and 5
DEBUG:  join prunable for task partitionId 1 and 0
DEBUG:  join prunable for task partitionId 1 and 2
DEBUG:  join prunable for task partitionId 1 and 3
DEBUG:  join prunable for task partitionId 1 and 4
DEBUG:  join prunable for task partitionId 1 and 5
DEBUG:  join prunable for task partitionId 2 and 0
DEBUG:  join prunable for task partitionId 2 and 1
DEBUG:  join prunable for task partitionId 2 and 3
DEBUG:  join prunable for task partitionId 2 and 4
DEBUG:  join prunable for task partitionId 2 and 5
DEBUG:  join prunable for task partitionId 3 and 0
DEBUG:  join prunable for task partitionId 3 and 1
DEBUG:  join prunable for task partitionId 3 and 2
DEBUG:  join prunable for task partitionId 3 and 4
DEBUG:  join prunable for task partitionId 3 and 5
DEBUG:  join prunable for task partitionId 4 and 0
DEBUG:  join prunable for task partitionId 4 and 1
DEBUG:  join prunable for task partitionId 4 and 2
DEBUG:  join prunable for task partitionId 4 and 3
DEBUG:  join prunable for task partitionId 4 and 5
DEBUG:  join prunable for task partitionId 5 and 0
DEBUG:  join prunable for task partitionId 5 and 1
DEBUG:  join prunable for task partitionId 5 and 2
DEBUG:  join prunable for task partitionId 5 and 3
DEBUG:  join prunable for task partitionId 5 and 4
DEBUG:  pruning merge fetch taskId 1
DETAIL:  Creating dependency on merge taskId 9
DEBUG:  pruning merge fetch taskId 2
DETAIL:  Creating dependency on merge taskId 5
DEBUG:  pruning merge fetch taskId 4
DETAIL:  Creating dependency on merge taskId 14
DEBUG:  pruning merge fetch taskId 5
DETAIL:  Creating dependency on merge taskId 10
DEBUG:  pruning merge fetch taskId 7
DETAIL:  Creating dependency on merge taskId 19
DEBUG:  pruning merge fetch taskId 8
DETAIL:  Creating dependency on merge taskId 15
DEBUG:  pruning merge fetch taskId 10
DETAIL:  Creating dependency on merge taskId 24
DEBUG:  pruning merge fetch taskId 11
DETAIL:  Creating dependency on merge taskId 20
DEBUG:  pruning merge fetch taskId 13
DETAIL:  Creating dependency on merge taskId 29
DEBUG:  pruning merge fetch taskId 14
DETAIL:  Creating dependency on merge taskId 25
DEBUG:  pruning merge fetch taskId 16
DETAIL:  Creating dependency on merge taskId 34
DEBUG:  pruning merge fetch taskId 17
DETAIL:  Creating dependency on merge taskId 30
ERROR:  the query contains a join that requires repartitioning
HINT:  Set citus.enable_repartition_joins to on to enable repartitioning
-- single hash repartitioning is not supported between different column types
EXPLAIN SELECT
	count(*)
FROM
	single_hash_repartition_first t1, single_hash_repartition_first t2, single_hash_repartition_second t3
WHERE
	t1.id = t2.id AND t1.avg = t3.id;
DEBUG:  Router planner cannot handle multi-shard select queries
DEBUG:  single partition column types do not match
DEBUG:  single partition column types do not match
DEBUG:  dual partition column types do not match
DEBUG:  single partition column types do not match
DEBUG:  single partition column types do not match
DEBUG:  dual partition column types do not match
DEBUG:  single partition column types do not match
DEBUG:  single partition column types do not match
DEBUG:  dual partition column types do not match
DEBUG:  single partition column types do not match
DEBUG:  single partition column types do not match
DEBUG:  dual partition column types do not match
LOG:  join order: [ "single_hash_repartition_second" ][ cartesian product "single_hash_repartition_first" ][ dual partition join "single_hash_repartition_first" ]
ERROR:  cannot perform distributed planning on this query
DETAIL:  Cartesian products are currently unsupported
-- single repartition query in CTE
-- should work fine
EXPLAIN WITH cte1 AS
(
	SELECT
		t1.id * t2.avg as data
	FROM
		single_hash_repartition_first t1, single_hash_repartition_second t2
	WHERE
		t1.id = t2.sum
	AND t1.sum > 5000
	ORDER BY 1 DESC
	LIMIT 50
)
SELECT
	count(*)
FROM
	cte1, single_hash_repartition_first
WHERE
	cte1.data > single_hash_repartition_first.id;
DEBUG:  CTE cte1 is going to be inlined via distributed planning
DEBUG:  Router planner cannot handle multi-shard select queries
DEBUG:  Router planner cannot handle multi-shard select queries
LOG:  join order: [ "single_hash_repartition_first" ][ single hash partition join "single_hash_repartition_second" ]
DEBUG:  push down of limit count: 50
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [-1073741824,-1]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [0,1073741823]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [-1073741824,-1] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [-1073741824,-1] and [0,1073741823]
DEBUG:  join prunable for intervals [-1073741824,-1] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [0,1073741823] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [0,1073741823] and [-1073741824,-1]
DEBUG:  join prunable for intervals [0,1073741823] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [-1073741824,-1]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [0,1073741823]
DEBUG:  pruning merge fetch taskId 1
DETAIL:  Creating dependency on merge taskId 5
DEBUG:  pruning merge fetch taskId 3
DETAIL:  Creating dependency on merge taskId 10
DEBUG:  pruning merge fetch taskId 5
DETAIL:  Creating dependency on merge taskId 15
DEBUG:  pruning merge fetch taskId 7
DETAIL:  Creating dependency on merge taskId 20
DEBUG:  Router planner cannot handle multi-shard select queries
DEBUG:  generating subplan XXX_1 for CTE cte1: SELECT ((t1.id)::double precision OPERATOR(pg_catalog.*) t2.avg) AS data FROM single_hash_repartition.single_hash_repartition_first t1, single_hash_repartition.single_hash_repartition_second t2 WHERE ((t1.id OPERATOR(pg_catalog.=) t2.sum) AND (t1.sum OPERATOR(pg_catalog.>) 5000)) ORDER BY ((t1.id)::double precision OPERATOR(pg_catalog.*) t2.avg) DESC LIMIT 50
DEBUG:  Router planner cannot handle multi-shard select queries
LOG:  join order: [ "single_hash_repartition_first" ][ single hash partition join "single_hash_repartition_second" ]
DEBUG:  push down of limit count: 50
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [-1073741824,-1]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [0,1073741823]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [-1073741824,-1] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [-1073741824,-1] and [0,1073741823]
DEBUG:  join prunable for intervals [-1073741824,-1] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [0,1073741823] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [0,1073741823] and [-1073741824,-1]
DEBUG:  join prunable for intervals [0,1073741823] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [-1073741824,-1]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [0,1073741823]
DEBUG:  pruning merge fetch taskId 1
DETAIL:  Creating dependency on merge taskId 5
DEBUG:  pruning merge fetch taskId 3
DETAIL:  Creating dependency on merge taskId 10
DEBUG:  pruning merge fetch taskId 5
DETAIL:  Creating dependency on merge taskId 15
DEBUG:  pruning merge fetch taskId 7
DETAIL:  Creating dependency on merge taskId 20
ERROR:  the query contains a join that requires repartitioning
HINT:  Set citus.enable_repartition_joins to on to enable repartitioning
-- two single repartitions
EXPLAIN SELECT
	count(*)
FROM
	single_hash_repartition_first t1, single_hash_repartition_second t2, single_hash_repartition_second t3
WHERE
	t1.id = t2.sum AND t2.sum = t3.id;
DEBUG:  Router planner cannot handle multi-shard select queries
LOG:  join order: [ "single_hash_repartition_first" ][ single hash partition join "single_hash_repartition_second" ][ single hash partition join "single_hash_repartition_second" ]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [-1073741824,-1]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [0,1073741823]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [-1073741824,-1] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [-1073741824,-1] and [0,1073741823]
DEBUG:  join prunable for intervals [-1073741824,-1] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [0,1073741823] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [0,1073741823] and [-1073741824,-1]
DEBUG:  join prunable for intervals [0,1073741823] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [-1073741824,-1]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [0,1073741823]
DEBUG:  pruning merge fetch taskId 1
DETAIL:  Creating dependency on merge taskId 5
DEBUG:  pruning merge fetch taskId 3
DETAIL:  Creating dependency on merge taskId 10
DEBUG:  pruning merge fetch taskId 5
DETAIL:  Creating dependency on merge taskId 15
DEBUG:  pruning merge fetch taskId 7
DETAIL:  Creating dependency on merge taskId 20
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [-1073741824,-1]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [0,1073741823]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [-1073741824,-1] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [-1073741824,-1] and [0,1073741823]
DEBUG:  join prunable for intervals [-1073741824,-1] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [0,1073741823] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [0,1073741823] and [-1073741824,-1]
DEBUG:  join prunable for intervals [0,1073741823] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [-1073741824,-1]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [0,1073741823]
DEBUG:  pruning merge fetch taskId 1
DETAIL:  Creating dependency on merge taskId 9
DEBUG:  pruning merge fetch taskId 3
DETAIL:  Creating dependency on merge taskId 14
DEBUG:  pruning merge fetch taskId 5
DETAIL:  Creating dependency on merge taskId 19
DEBUG:  pruning merge fetch taskId 7
DETAIL:  Creating dependency on merge taskId 24
ERROR:  the query contains a join that requires repartitioning
HINT:  Set citus.enable_repartition_joins to on to enable repartitioning
-- two single repartitions again, but this
-- time the columns of the second join is reverted
EXPLAIN SELECT
	avg(t1.avg + t2.avg)
FROM
	single_hash_repartition_first t1, single_hash_repartition_second t2, single_hash_repartition_second t3
WHERE
	t1.id = t2.sum AND t2.id = t3.sum
LIMIT 10;
DEBUG:  Router planner cannot handle multi-shard select queries
LOG:  join order: [ "single_hash_repartition_second" ][ single hash partition join "single_hash_repartition_second" ][ single hash partition join "single_hash_repartition_first" ]
DEBUG:  push down of limit count: 10
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [-1073741824,-1]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [0,1073741823]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [-1073741824,-1] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [-1073741824,-1] and [0,1073741823]
DEBUG:  join prunable for intervals [-1073741824,-1] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [0,1073741823] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [0,1073741823] and [-1073741824,-1]
DEBUG:  join prunable for intervals [0,1073741823] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [-1073741824,-1]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [0,1073741823]
DEBUG:  pruning merge fetch taskId 1
DETAIL:  Creating dependency on merge taskId 5
DEBUG:  pruning merge fetch taskId 3
DETAIL:  Creating dependency on merge taskId 10
DEBUG:  pruning merge fetch taskId 5
DETAIL:  Creating dependency on merge taskId 15
DEBUG:  pruning merge fetch taskId 7
DETAIL:  Creating dependency on merge taskId 20
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [-1073741824,-1]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [0,1073741823]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [-1073741824,-1] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [-1073741824,-1] and [0,1073741823]
DEBUG:  join prunable for intervals [-1073741824,-1] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [0,1073741823] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [0,1073741823] and [-1073741824,-1]
DEBUG:  join prunable for intervals [0,1073741823] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [-1073741824,-1]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [0,1073741823]
DEBUG:  pruning merge fetch taskId 1
DETAIL:  Creating dependency on merge taskId 9
DEBUG:  pruning merge fetch taskId 3
DETAIL:  Creating dependency on merge taskId 14
DEBUG:  pruning merge fetch taskId 5
DETAIL:  Creating dependency on merge taskId 19
DEBUG:  pruning merge fetch taskId 7
DETAIL:  Creating dependency on merge taskId 24
ERROR:  the query contains a join that requires repartitioning
HINT:  Set citus.enable_repartition_joins to on to enable repartitioning
-- lets try one more thing, show that non uniform shard distribution doesn't
-- end up with single hash repartitioning
 UPDATE pg_dist_shard SET shardmaxvalue = shardmaxvalue::int - 1 WHERE logicalrelid IN ('single_hash_repartition_first'::regclass);
-- the following queries should also be a single hash repartition queries
-- note that since we've manually updated the metadata without changing the
-- the corresponding data, the results of the query would be wrong
EXPLAIN SELECT
	count(*)
FROM
	single_hash_repartition_first t1, single_hash_repartition_second t2
WHERE
	t1.id = t2.sum;
DEBUG:  Router planner cannot handle multi-shard select queries
LOG:  join order: [ "single_hash_repartition_first" ][ single hash partition join "single_hash_repartition_second" ]
DEBUG:  join prunable for intervals [-2147483648,-1073741826] and [-1073741824,-2]
DEBUG:  join prunable for intervals [-2147483648,-1073741826] and [0,1073741822]
DEBUG:  join prunable for intervals [-2147483648,-1073741826] and [1073741824,2147483646]
DEBUG:  join prunable for intervals [-1073741824,-2] and [-2147483648,-1073741826]
DEBUG:  join prunable for intervals [-1073741824,-2] and [0,1073741822]
DEBUG:  join prunable for intervals [-1073741824,-2] and [1073741824,2147483646]
DEBUG:  join prunable for intervals [0,1073741822] and [-2147483648,-1073741826]
DEBUG:  join prunable for intervals [0,1073741822] and [-1073741824,-2]
DEBUG:  join prunable for intervals [0,1073741822] and [1073741824,2147483646]
DEBUG:  join prunable for intervals [1073741824,2147483646] and [-2147483648,-1073741826]
DEBUG:  join prunable for intervals [1073741824,2147483646] and [-1073741824,-2]
DEBUG:  join prunable for intervals [1073741824,2147483646] and [0,1073741822]
DEBUG:  pruning merge fetch taskId 1
DETAIL:  Creating dependency on merge taskId 5
DEBUG:  pruning merge fetch taskId 3
DETAIL:  Creating dependency on merge taskId 10
DEBUG:  pruning merge fetch taskId 5
DETAIL:  Creating dependency on merge taskId 15
DEBUG:  pruning merge fetch taskId 7
DETAIL:  Creating dependency on merge taskId 20
ERROR:  the query contains a join that requires repartitioning
HINT:  Set citus.enable_repartition_joins to on to enable repartitioning
-- the following queries should also be a single hash repartition queries
-- note that since we've manually updated the metadata without changing the
-- the corresponding data, the results of the query would be wrong
EXPLAIN SELECT
	count(*)
FROM
	single_hash_repartition_first t1, single_hash_repartition_second t2
WHERE
	t1.sum = t2.id;
DEBUG:  Router planner cannot handle multi-shard select queries
LOG:  join order: [ "single_hash_repartition_first" ][ single hash partition join "single_hash_repartition_second" ]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [-1073741824,-1]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [0,1073741823]
DEBUG:  join prunable for intervals [-2147483648,-1073741825] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [-1073741824,-1] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [-1073741824,-1] and [0,1073741823]
DEBUG:  join prunable for intervals [-1073741824,-1] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [0,1073741823] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [0,1073741823] and [-1073741824,-1]
DEBUG:  join prunable for intervals [0,1073741823] and [1073741824,2147483647]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [-2147483648,-1073741825]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [-1073741824,-1]
DEBUG:  join prunable for intervals [1073741824,2147483647] and [0,1073741823]
DEBUG:  pruning merge fetch taskId 1
DETAIL:  Creating dependency on merge taskId 5
DEBUG:  pruning merge fetch taskId 3
DETAIL:  Creating dependency on merge taskId 10
DEBUG:  pruning merge fetch taskId 5
DETAIL:  Creating dependency on merge taskId 15
DEBUG:  pruning merge fetch taskId 7
DETAIL:  Creating dependency on merge taskId 20
ERROR:  the query contains a join that requires repartitioning
HINT:  Set citus.enable_repartition_joins to on to enable repartitioning
RESET client_min_messages;
CREATE TABLE test_numeric  (a numeric, b numeric);
SET citus.shard_count TO 7;
SELECT create_distributed_table('test_numeric', 'a');
 create_distributed_table
---------------------------------------------------------------------

(1 row)

INSERT INTO test_numeric SELECT i,i FROM generate_series(0,1000) i;
SET citus.enable_single_hash_repartition_joins TO ON;
SET citus.enable_repartition_joins TO on;
SELECT count(*) FROM test_numeric t1 JOIN test_numeric as t2 ON (t1.a = t2.b);
 count
---------------------------------------------------------------------
  1001
(1 row)

SET citus.shard_replication_factor to 2;
CREATE TABLE dist_1 (a int , b int);
SELECT create_distributed_table('dist_1', 'a');
 create_distributed_table
---------------------------------------------------------------------

(1 row)

INSERT INTO dist_1 SELECT x,10-x FROM generate_series(1,10) x;
SELECT COUNT(*) FROM dist_1 f, dist_1 s WHERE f.a = s.b;
 count
---------------------------------------------------------------------
     9
(1 row)

SET client_min_messages TO ERROR;
RESET search_path;
DROP SCHEMA single_hash_repartition CASCADE;
SET citus.enable_single_hash_repartition_joins TO OFF;