ALTER SEQUENCE pg_catalog.pg_dist_shardid_seq RESTART 310000;
ALTER SEQUENCE pg_catalog.pg_dist_jobid_seq RESTART 310000;
SET citus.large_table_shard_count TO 2;
SET citus.log_multi_join_order to true;
SET client_min_messages TO LOG;
CREATE TABLE multi_outer_join_left
(
	l_custkey integer not null,
	l_name varchar(25) not null,
	l_address varchar(40) not null,
	l_nationkey integer not null,
	l_phone char(15) not null,
	l_acctbal decimal(15,2) not null,
	l_mktsegment char(10) not null,
	l_comment varchar(117) not null
);
SELECT master_create_distributed_table('multi_outer_join_left', 'l_custkey', 'append');
 master_create_distributed_table 
---------------------------------
 
(1 row)

CREATE TABLE multi_outer_join_right
(
	r_custkey integer not null,
	r_name varchar(25) not null,
	r_address varchar(40) not null,
	r_nationkey integer not null,
	r_phone char(15) not null,
	r_acctbal decimal(15,2) not null,
	r_mktsegment char(10) not null,
	r_comment varchar(117) not null
);
SELECT master_create_distributed_table('multi_outer_join_right', 'r_custkey', 'append');
 master_create_distributed_table 
---------------------------------
 
(1 row)

CREATE TABLE multi_outer_join_third
(
	t_custkey integer not null,
	t_name varchar(25) not null,
	t_address varchar(40) not null,
	t_nationkey integer not null,
	t_phone char(15) not null,
	t_acctbal decimal(15,2) not null,
	t_mktsegment char(10) not null,
	t_comment varchar(117) not null
);
SELECT master_create_distributed_table('multi_outer_join_third', 't_custkey', 'append');
 master_create_distributed_table 
---------------------------------
 
(1 row)

-- Make sure we do not crash if both tables have no shards
SELECT
	min(l_custkey), max(l_custkey)
FROM
	multi_outer_join_left a LEFT JOIN multi_outer_join_third b ON (l_custkey = t_custkey);
ERROR:  cannot perform distributed planning on this query
DETAIL:  Shards of relations in outer join queries must have 1-to-1 shard partitioning
-- Left table is a large table
\copy multi_outer_join_left FROM '@abs_srcdir@/data/customer-1-10.data' with delimiter '|'
\copy multi_outer_join_left FROM '@abs_srcdir@/data/customer-11-20.data' with delimiter '|'
-- Right table is a small table
\copy multi_outer_join_right FROM '@abs_srcdir@/data/customer-1-15.data' with delimiter '|'
-- Make sure we do not crash if one table has no shards
SELECT
	min(l_custkey), max(l_custkey)
FROM
	multi_outer_join_left a LEFT JOIN multi_outer_join_third b ON (l_custkey = t_custkey);
ERROR:  cannot perform distributed planning on this query
DETAIL:  Shards of relations in outer join queries must have 1-to-1 shard partitioning
SELECT
	min(t_custkey), max(t_custkey)
FROM
	multi_outer_join_third a LEFT JOIN multi_outer_join_right b ON (r_custkey = t_custkey);
LOG:  join order: [ "multi_outer_join_third" ][ broadcast join "multi_outer_join_right" ]
 min | max 
-----+-----
     |    
(1 row)

-- Third table is a single shard table with all data
\copy multi_outer_join_third FROM '@abs_srcdir@/data/customer-1-30.data' with delimiter '|'
-- Regular outer join should return results for all rows
SELECT
	min(l_custkey), max(l_custkey)
FROM
	multi_outer_join_left a LEFT JOIN multi_outer_join_right b ON (l_custkey = r_custkey);
LOG:  join order: [ "multi_outer_join_left" ][ broadcast join "multi_outer_join_right" ]
 min | max 
-----+-----
   1 |  20
(1 row)

-- Since this is a broadcast join, we should be able to join on any key
SELECT
	count(*)
FROM
	multi_outer_join_left a LEFT JOIN multi_outer_join_right b ON (l_nationkey = r_nationkey);
LOG:  join order: [ "multi_outer_join_left" ][ broadcast join "multi_outer_join_right" ]
 count 
-------
    28
(1 row)

-- Anti-join should return customers for which there is no row in the right table
SELECT
	min(l_custkey), max(l_custkey)
FROM
	multi_outer_join_left a LEFT JOIN multi_outer_join_right b ON (l_custkey = r_custkey)
WHERE
	r_custkey IS NULL;
LOG:  join order: [ "multi_outer_join_left" ][ broadcast join "multi_outer_join_right" ]
 min | max 
-----+-----
  16 |  20
(1 row)

-- Partial anti-join with specific value
SELECT
	min(l_custkey), max(l_custkey)
FROM
	multi_outer_join_left a LEFT JOIN multi_outer_join_right b ON (l_custkey = r_custkey)
WHERE
	r_custkey IS NULL OR r_custkey = 5;
LOG:  join order: [ "multi_outer_join_left" ][ broadcast join "multi_outer_join_right" ]
 min | max 
-----+-----
   5 |  20
(1 row)

-- This query is an INNER JOIN in disguise since there cannot be NULL results
-- Added extra filter to make query not router plannable
SELECT
	min(l_custkey), max(l_custkey)
FROM
	multi_outer_join_left a LEFT JOIN multi_outer_join_right b ON (l_custkey = r_custkey)
WHERE
	r_custkey = 5 or r_custkey > 15;
LOG:  join order: [ "multi_outer_join_left" ][ broadcast join "multi_outer_join_right" ]
 min | max 
-----+-----
   5 |   5
(1 row)

-- Apply a filter before the join
SELECT
	count(l_custkey), count(r_custkey)
FROM
	multi_outer_join_left a LEFT JOIN multi_outer_join_right b
	ON (l_custkey = r_custkey AND r_custkey = 5);
LOG:  join order: [ "multi_outer_join_left" ][ broadcast join "multi_outer_join_right" ]
 count | count 
-------+-------
    20 |     1
(1 row)

-- Apply a filter before the join (no matches right)
SELECT
	count(l_custkey), count(r_custkey)
FROM
	multi_outer_join_left a LEFT JOIN multi_outer_join_right b
	ON (l_custkey = r_custkey AND r_custkey = -1 /* nonexistant */);
LOG:  join order: [ "multi_outer_join_left" ][ broadcast join "multi_outer_join_right" ]
 count | count 
-------+-------
    20 |     0
(1 row)

-- Apply a filter before the join (no matches left)
SELECT
	count(l_custkey), count(r_custkey)
FROM
	multi_outer_join_left a LEFT JOIN multi_outer_join_right b
	ON (l_custkey = r_custkey AND l_custkey = -1 /* nonexistant */);
LOG:  join order: [ "multi_outer_join_left" ][ broadcast join "multi_outer_join_right" ]
 count | count 
-------+-------
    20 |     0
(1 row)

-- Right join should be disallowed in this case
SELECT
	min(r_custkey), max(r_custkey)
FROM
	multi_outer_join_left a RIGHT JOIN multi_outer_join_right b ON (l_custkey = r_custkey);
ERROR:  cannot perform distributed planning on this query
DETAIL:  Shards of relations in outer join queries must have 1-to-1 shard partitioning
-- Reverse right join should be same as left join
SELECT
	min(l_custkey), max(l_custkey)
FROM
	multi_outer_join_right a RIGHT JOIN multi_outer_join_left b ON (l_custkey = r_custkey);
LOG:  join order: [ "multi_outer_join_left" ][ broadcast join "multi_outer_join_right" ]
 min | max 
-----+-----
   1 |  20
(1 row)

-- Turn the right table into a large table
\copy multi_outer_join_right FROM '@abs_srcdir@/data/customer-21-30.data' with delimiter '|'
-- Shards do not have 1-1 matching. We should error here.
SELECT
	min(l_custkey), max(l_custkey)
FROM
	multi_outer_join_left a LEFT JOIN multi_outer_join_right b ON (l_custkey = r_custkey);
ERROR:  cannot perform distributed planning on this query
DETAIL:  Shards of relations in outer join queries must have 1-to-1 shard partitioning
-- empty tables
SELECT * FROM master_apply_delete_command('DELETE FROM multi_outer_join_left');
 master_apply_delete_command 
-----------------------------
                           2
(1 row)

SELECT * FROM master_apply_delete_command('DELETE FROM multi_outer_join_right');
 master_apply_delete_command 
-----------------------------
                           2
(1 row)

-- reload shards with 1-1 matching
\copy multi_outer_join_left FROM '@abs_srcdir@/data/customer-1-15.data' with delimiter '|'
\copy multi_outer_join_left FROM '@abs_srcdir@/data/customer-21-30.data' with delimiter '|'
\copy multi_outer_join_right FROM '@abs_srcdir@/data/customer-11-20.data' with delimiter '|'
\copy multi_outer_join_right FROM '@abs_srcdir@/data/customer-21-30.data' with delimiter '|'
-- multi_outer_join_third is a single shard table
-- Regular left join should work as expected
SELECT
	min(l_custkey), max(l_custkey)
FROM
	multi_outer_join_left a LEFT JOIN multi_outer_join_right b ON (l_custkey = r_custkey);
LOG:  join order: [ "multi_outer_join_left" ][ local partition join "multi_outer_join_right" ]
 min | max 
-----+-----
   1 |  30
(1 row)

-- Since we cannot broadcast or re-partition, joining on a different key should error out
SELECT
	count(*)
FROM
	multi_outer_join_left a LEFT JOIN multi_outer_join_right b ON (l_nationkey = r_nationkey);
ERROR:  cannot perform distributed planning on this query
DETAIL:  Shards of relations in outer join queries must have 1-to-1 shard partitioning
-- Anti-join should return customers for which there is no row in the right table
SELECT
	min(l_custkey), max(l_custkey)
FROM
	multi_outer_join_left a LEFT JOIN multi_outer_join_right b ON (l_custkey = r_custkey)
WHERE
	r_custkey IS NULL;
LOG:  join order: [ "multi_outer_join_left" ][ local partition join "multi_outer_join_right" ]
 min | max 
-----+-----
   1 |  10
(1 row)

-- Partial anti-join with specific value (5, 11-15)
SELECT
	min(l_custkey), max(l_custkey)
FROM
	multi_outer_join_left a LEFT JOIN multi_outer_join_right b ON (l_custkey = r_custkey)
WHERE
	r_custkey IS NULL OR r_custkey = 15;
LOG:  join order: [ "multi_outer_join_left" ][ local partition join "multi_outer_join_right" ]
 min | max 
-----+-----
   1 |  15
(1 row)

-- This query is an INNER JOIN in disguise since there cannot be NULL results (21)
-- Added extra filter to make query not router plannable
SELECT
	min(l_custkey), max(l_custkey)
FROM
	multi_outer_join_left a LEFT JOIN multi_outer_join_right b ON (l_custkey = r_custkey)
WHERE
	r_custkey = 21 or r_custkey < 10;
LOG:  join order: [ "multi_outer_join_left" ][ local partition join "multi_outer_join_right" ]
 min | max 
-----+-----
  21 |  21
(1 row)

-- Apply a filter before the join
SELECT
	count(l_custkey), count(r_custkey)
FROM
	multi_outer_join_left a LEFT JOIN multi_outer_join_right b
	ON (l_custkey = r_custkey AND r_custkey = 21);
LOG:  join order: [ "multi_outer_join_left" ][ local partition join "multi_outer_join_right" ]
 count | count 
-------+-------
    25 |     1
(1 row)

-- Right join should be allowed in this case
SELECT
	min(r_custkey), max(r_custkey)
FROM
	multi_outer_join_left a RIGHT JOIN multi_outer_join_right b ON (l_custkey = r_custkey);
LOG:  join order: [ "multi_outer_join_right" ][ local partition join "multi_outer_join_left" ]
 min | max 
-----+-----
  11 |  30
(1 row)

-- Reverse right join should be same as left join
SELECT
	min(l_custkey), max(l_custkey)
FROM
	multi_outer_join_right a RIGHT JOIN multi_outer_join_left b ON (l_custkey = r_custkey);
LOG:  join order: [ "multi_outer_join_left" ][ local partition join "multi_outer_join_right" ]
 min | max 
-----+-----
   1 |  30
(1 row)

-- complex query tree should error out
SELECT
	*
FROM
	multi_outer_join_left l1
	LEFT JOIN multi_outer_join_right r1 ON (l1.l_custkey = r1.r_custkey)
	LEFT JOIN multi_outer_join_right r2 ON (l1.l_custkey  = r2.r_custkey)
	RIGHT JOIN multi_outer_join_left l2 ON (r2.r_custkey = l2.l_custkey);
ERROR:  could not run distributed query with complex join orders
-- add an anti-join, this should also error out
SELECT
	*
FROM
	multi_outer_join_left l1
	LEFT JOIN multi_outer_join_right r1 ON (l1.l_custkey = r1.r_custkey)
	LEFT JOIN multi_outer_join_right r2 ON (l1.l_custkey  = r2.r_custkey)
	RIGHT JOIN multi_outer_join_left l2 ON (r2.r_custkey = l2.l_custkey)
WHERE
	r1.r_custkey is NULL;
ERROR:  could not run distributed query with complex join orders
-- Three way join 2-2-1 (local + broadcast join) should work
SELECT
	l_custkey, r_custkey, t_custkey
FROM
	multi_outer_join_left l1
	LEFT JOIN multi_outer_join_right r1 ON (l1.l_custkey = r1.r_custkey)
	LEFT JOIN multi_outer_join_third t1 ON (r1.r_custkey  = t1.t_custkey);
LOG:  join order: [ "multi_outer_join_left" ][ local partition join "multi_outer_join_right" ][ broadcast join "multi_outer_join_third" ]
 l_custkey | r_custkey | t_custkey 
-----------+-----------+-----------
         1 |           |          
         2 |           |          
         3 |           |          
         4 |           |          
         5 |           |          
         6 |           |          
         7 |           |          
         8 |           |          
         9 |           |          
        10 |           |          
        11 |        11 |        11
        12 |        12 |        12
        13 |        13 |        13
        14 |        14 |        14
        15 |        15 |        15
        21 |        21 |        21
        22 |        22 |        22
        23 |        23 |        23
        24 |        24 |        24
        25 |        25 |        25
        26 |        26 |        26
        27 |        27 |        27
        28 |        28 |        28
        29 |        29 |        29
        30 |        30 |        30
(25 rows)

-- Right join with single shard right most table should error out
SELECT
	l_custkey, r_custkey, t_custkey
FROM
	multi_outer_join_left l1
	LEFT JOIN multi_outer_join_right r1 ON (l1.l_custkey = r1.r_custkey)
	RIGHT JOIN multi_outer_join_third t1 ON (r1.r_custkey  = t1.t_custkey);
ERROR:  could not run distributed query with complex join orders
-- Right join with single shard left most table should work
SELECT
	t_custkey, r_custkey, l_custkey
FROM
	multi_outer_join_third t1
	RIGHT JOIN multi_outer_join_right r1 ON (t1.t_custkey = r1.r_custkey)
	LEFT JOIN multi_outer_join_left l1 ON (r1.r_custkey  = l1.l_custkey);
LOG:  join order: [ "multi_outer_join_right" ][ broadcast join "multi_outer_join_third" ][ local partition join "multi_outer_join_left" ]
 t_custkey | r_custkey | l_custkey 
-----------+-----------+-----------
        11 |        11 |        11
        12 |        12 |        12
        13 |        13 |        13
        14 |        14 |        14
        15 |        15 |        15
        16 |        16 |          
        17 |        17 |          
        18 |        18 |          
        19 |        19 |          
        20 |        20 |          
        21 |        21 |        21
        22 |        22 |        22
        23 |        23 |        23
        24 |        24 |        24
        25 |        25 |        25
        26 |        26 |        26
        27 |        27 |        27
        28 |        28 |        28
        29 |        29 |        29
        30 |        30 |        30
(20 rows)

-- Make it anti-join, should display values with l_custkey is null
SELECT
	t_custkey, r_custkey, l_custkey
FROM
	multi_outer_join_third t1
	RIGHT JOIN multi_outer_join_right r1 ON (t1.t_custkey = r1.r_custkey)
	LEFT JOIN multi_outer_join_left l1 ON (r1.r_custkey  = l1.l_custkey)
WHERE
	l_custkey is NULL;
LOG:  join order: [ "multi_outer_join_right" ][ broadcast join "multi_outer_join_third" ][ local partition join "multi_outer_join_left" ]
 t_custkey | r_custkey | l_custkey 
-----------+-----------+-----------
        16 |        16 |          
        17 |        17 |          
        18 |        18 |          
        19 |        19 |          
        20 |        20 |          
(5 rows)

-- Cascading right join with single shard left most table should error out
SELECT
	t_custkey, r_custkey, l_custkey
FROM
	multi_outer_join_third t1
	RIGHT JOIN multi_outer_join_right r1 ON (t1.t_custkey = r1.r_custkey)
	RIGHT JOIN multi_outer_join_left l1 ON (r1.r_custkey  = l1.l_custkey);
ERROR:  could not run distributed query with complex join orders
-- full outer join should work with 1-1 matched shards
SELECT
	l_custkey, r_custkey
FROM
	multi_outer_join_left l1
	FULL JOIN multi_outer_join_right r1 ON (l1.l_custkey = r1.r_custkey);
LOG:  join order: [ "multi_outer_join_left" ][ local partition join "multi_outer_join_right" ]
 l_custkey | r_custkey 
-----------+-----------
         1 |          
         2 |          
         3 |          
         4 |          
         5 |          
         6 |          
         7 |          
         8 |          
         9 |          
        10 |          
        11 |        11
        12 |        12
        13 |        13
        14 |        14
        15 |        15
           |        20
           |        17
           |        18
           |        19
           |        16
        21 |        21
        22 |        22
        23 |        23
        24 |        24
        25 |        25
        26 |        26
        27 |        27
        28 |        28
        29 |        29
        30 |        30
(30 rows)

-- full outer join + anti (right) should work with 1-1 matched shards
SELECT
	l_custkey, r_custkey
FROM
	multi_outer_join_left l1
	FULL JOIN multi_outer_join_right r1 ON (l1.l_custkey = r1.r_custkey)
WHERE 
	r_custkey is NULL;
LOG:  join order: [ "multi_outer_join_left" ][ local partition join "multi_outer_join_right" ]
 l_custkey | r_custkey 
-----------+-----------
         1 |          
         2 |          
         3 |          
         4 |          
         5 |          
         6 |          
         7 |          
         8 |          
         9 |          
        10 |          
(10 rows)

-- full outer join + anti (left) should work with 1-1 matched shards
SELECT
	l_custkey, r_custkey
FROM
	multi_outer_join_left l1
	FULL JOIN multi_outer_join_right r1 ON (l1.l_custkey = r1.r_custkey)
WHERE 
	l_custkey is NULL;
LOG:  join order: [ "multi_outer_join_left" ][ local partition join "multi_outer_join_right" ]
 l_custkey | r_custkey 
-----------+-----------
           |        20
           |        17
           |        18
           |        19
           |        16
(5 rows)

-- full outer join + anti (both) should work with 1-1 matched shards
SELECT
	l_custkey, r_custkey
FROM
	multi_outer_join_left l1
	FULL JOIN multi_outer_join_right r1 ON (l1.l_custkey = r1.r_custkey)
WHERE 
	l_custkey is NULL or r_custkey is NULL;
LOG:  join order: [ "multi_outer_join_left" ][ local partition join "multi_outer_join_right" ]
 l_custkey | r_custkey 
-----------+-----------
         1 |          
         2 |          
         3 |          
         4 |          
         5 |          
         6 |          
         7 |          
         8 |          
         9 |          
        10 |          
           |        20
           |        17
           |        18
           |        19
           |        16
(15 rows)

-- full outer join should error out for mismatched shards
SELECT
	l_custkey, t_custkey
FROM
	multi_outer_join_left l1
	FULL JOIN multi_outer_join_third t1 ON (l1.l_custkey = t1.t_custkey);
ERROR:  cannot perform distributed planning on this query
DETAIL:  Shards of relations in outer join queries must have 1-to-1 shard partitioning
-- inner join  + single shard left join should work
SELECT
	l_custkey, r_custkey, t_custkey
FROM
	multi_outer_join_left l1
	INNER JOIN multi_outer_join_right r1 ON (l1.l_custkey = r1.r_custkey)
	LEFT JOIN multi_outer_join_third t1 ON (r1.r_custkey  = t1.t_custkey);
LOG:  join order: [ "multi_outer_join_left" ][ local partition join "multi_outer_join_right" ][ broadcast join "multi_outer_join_third" ]
 l_custkey | r_custkey | t_custkey 
-----------+-----------+-----------
        11 |        11 |        11
        12 |        12 |        12
        13 |        13 |        13
        14 |        14 |        14
        15 |        15 |        15
        21 |        21 |        21
        22 |        22 |        22
        23 |        23 |        23
        24 |        24 |        24
        25 |        25 |        25
        26 |        26 |        26
        27 |        27 |        27
        28 |        28 |        28
        29 |        29 |        29
        30 |        30 |        30
(15 rows)

-- inner (broadcast) join  + 2 shards left (local) join should work
SELECT
	l_custkey, t_custkey, r_custkey
FROM
	multi_outer_join_left l1
	INNER JOIN multi_outer_join_third t1 ON (l1.l_custkey = t1.t_custkey)
	LEFT JOIN multi_outer_join_right r1 ON (l1.l_custkey  = r1.r_custkey);
LOG:  join order: [ "multi_outer_join_left" ][ broadcast join "multi_outer_join_third" ][ local partition join "multi_outer_join_right" ]
 l_custkey | t_custkey | r_custkey 
-----------+-----------+-----------
         1 |         1 |          
         2 |         2 |          
         3 |         3 |          
         4 |         4 |          
         5 |         5 |          
         6 |         6 |          
         7 |         7 |          
         8 |         8 |          
         9 |         9 |          
        10 |        10 |          
        11 |        11 |        11
        12 |        12 |        12
        13 |        13 |        13
        14 |        14 |        14
        15 |        15 |        15
        21 |        21 |        21
        22 |        22 |        22
        23 |        23 |        23
        24 |        24 |        24
        25 |        25 |        25
        26 |        26 |        26
        27 |        27 |        27
        28 |        28 |        28
        29 |        29 |        29
        30 |        30 |        30
(25 rows)

-- inner (local) join  + 2 shards left (dual partition) join should error out
SELECT
	t_custkey, l_custkey, r_custkey
FROM
	multi_outer_join_third t1
	INNER JOIN multi_outer_join_left l1 ON (l1.l_custkey = t1.t_custkey)
	LEFT JOIN multi_outer_join_right r1 ON (l1.l_custkey  = r1.r_custkey);
ERROR:  cannot perform distributed planning on this query
DETAIL:  Shards of relations in outer join queries must have 1-to-1 shard partitioning
-- inner (local) join  + 2 shards left (dual partition) join should error out
SELECT
	l_custkey, t_custkey, r_custkey
FROM
	multi_outer_join_left l1
	INNER JOIN multi_outer_join_third t1 ON (l1.l_custkey = t1.t_custkey)
	LEFT JOIN multi_outer_join_right r1 ON (l1.l_custkey  = r1.r_custkey);
LOG:  join order: [ "multi_outer_join_left" ][ broadcast join "multi_outer_join_third" ][ local partition join "multi_outer_join_right" ]
 l_custkey | t_custkey | r_custkey 
-----------+-----------+-----------
         1 |         1 |          
         2 |         2 |          
         3 |         3 |          
         4 |         4 |          
         5 |         5 |          
         6 |         6 |          
         7 |         7 |          
         8 |         8 |          
         9 |         9 |          
        10 |        10 |          
        11 |        11 |        11
        12 |        12 |        12
        13 |        13 |        13
        14 |        14 |        14
        15 |        15 |        15
        21 |        21 |        21
        22 |        22 |        22
        23 |        23 |        23
        24 |        24 |        24
        25 |        25 |        25
        26 |        26 |        26
        27 |        27 |        27
        28 |        28 |        28
        29 |        29 |        29
        30 |        30 |        30
(25 rows)

-- inner (broadcast) join  + 2 shards left (local) + anti join should work
SELECT
	l_custkey, t_custkey, r_custkey
FROM
	multi_outer_join_left l1
	INNER JOIN multi_outer_join_third t1 ON (l1.l_custkey = t1.t_custkey)
	LEFT JOIN multi_outer_join_right r1 ON (l1.l_custkey  = r1.r_custkey)
WHERE
	r_custkey is NULL;
LOG:  join order: [ "multi_outer_join_left" ][ broadcast join "multi_outer_join_third" ][ local partition join "multi_outer_join_right" ]
 l_custkey | t_custkey | r_custkey 
-----------+-----------+-----------
         1 |         1 |          
         2 |         2 |          
         3 |         3 |          
         4 |         4 |          
         5 |         5 |          
         6 |         6 |          
         7 |         7 |          
         8 |         8 |          
         9 |         9 |          
        10 |        10 |          
(10 rows)

-- Test joinExpr aliases by performing an outer-join. 
SELECT 
	t_custkey
FROM   
	(multi_outer_join_right r1 
	LEFT OUTER JOIN multi_outer_join_left l1 ON (l1.l_custkey = r1.r_custkey)) AS
    test(c_custkey, c_nationkey)
    INNER JOIN multi_outer_join_third t1 ON (test.c_custkey = t1.t_custkey);
LOG:  join order: [ "multi_outer_join_right" ][ local partition join "multi_outer_join_left" ][ broadcast join "multi_outer_join_third" ]
 t_custkey 
-----------
        11
        12
        13
        14
        15
        16
        17
        18
        19
        20
        21
        22
        23
        24
        25
        26
        27
        28
        29
        30
(20 rows)

-- flattened out subqueries with outer joins are not supported
SELECT
  l1.l_custkey,
  count(*) as cnt
FROM (
  SELECT l_custkey, l_nationkey
  FROM multi_outer_join_left
  WHERE l_comment like '%a%'
) l1
LEFT JOIN (
  SELECT r_custkey, r_name
  FROM multi_outer_join_right
  WHERE r_comment like '%b%'
) l2 ON l1.l_custkey = l2.r_custkey
GROUP BY l1.l_custkey
ORDER BY cnt DESC, l1.l_custkey DESC
LIMIT 20;
ERROR:  cannot perform distributed planning on this query
DETAIL:  Subqueries in outer joins are not supported
-- Add a shard to the left table that overlaps with multiple shards in the right
\copy multi_outer_join_left FROM '@abs_srcdir@/data/customer.1.data' with delimiter '|'
-- All outer joins should error out
SELECT
	min(l_custkey), max(l_custkey)
FROM
	multi_outer_join_left a LEFT JOIN multi_outer_join_right b ON (l_custkey = r_custkey);
ERROR:  cannot perform distributed planning on this query
DETAIL:  Shards of relations in outer join queries must have 1-to-1 shard partitioning
SELECT
	min(l_custkey), max(l_custkey)
FROM
	multi_outer_join_left a RIGHT JOIN multi_outer_join_right b ON (l_custkey = r_custkey);
ERROR:  cannot perform distributed planning on this query
DETAIL:  Shards of relations in outer join queries must have 1-to-1 shard partitioning
SELECT
	min(l_custkey), max(l_custkey)
FROM
	multi_outer_join_left a FULL JOIN multi_outer_join_right b ON (l_custkey = r_custkey);
ERROR:  cannot perform distributed planning on this query
DETAIL:  Shards of relations in outer join queries must have 1-to-1 shard partitioning
SELECT 
	t_custkey
FROM   
	(multi_outer_join_right r1 
	LEFT OUTER JOIN multi_outer_join_left l1 ON (l1.l_custkey = r1.r_custkey)) AS
    test(c_custkey, c_nationkey)
    INNER JOIN multi_outer_join_third t1 ON (test.c_custkey = t1.t_custkey);
ERROR:  cannot perform distributed planning on this query
DETAIL:  Shards of relations in outer join queries must have 1-to-1 shard partitioning
-- simple test to ensure anti-joins work with hash-partitioned tables
CREATE TABLE left_values(val int);
SELECT master_create_distributed_table('left_values', 'val', 'hash');
 master_create_distributed_table 
---------------------------------
 
(1 row)

SELECT master_create_worker_shards('left_values', 16, 1);
 master_create_worker_shards 
-----------------------------
 
(1 row)

\copy left_values from stdin
CREATE TABLE right_values(val int);
SELECT master_create_distributed_table('right_values', 'val', 'hash');
 master_create_distributed_table 
---------------------------------
 
(1 row)

SELECT master_create_worker_shards('right_values', 16, 1);
 master_create_worker_shards 
-----------------------------
 
(1 row)

\copy right_values from stdin
SELECT
    *
FROM
    left_values AS l
    LEFT JOIN right_values AS r ON l.val = r.val
WHERE
    r.val IS NULL;
LOG:  join order: [ "left_values" ][ local partition join "right_values" ]
 val | val 
-----+-----
   1 |    
   5 |    
(2 rows)