--
-- MULTI_ALIAS
--
-- Here we test using various types of aliases for a distributed table
-- Test file is created when fixing #4269 column alias bug
--
CREATE SCHEMA alias;
SET search_path TO alias;
SET citus.shard_count TO 1;
SET citus.shard_replication_factor TO 1;
SET citus.next_shard_id TO 90630800;
CREATE TABLE alias_test(a int, b int);
SELECT create_distributed_table('alias_test', 'a');
 create_distributed_table
---------------------------------------------------------------------

(1 row)

INSERT INTO alias_test VALUES (0, 0), (1, 1);
SET citus.log_remote_commands TO on;
SELECT * FROM alias_test;
NOTICE:  issuing SELECT a, b FROM alias.alias_test_90630800 alias_test
DETAIL:  on server postgres@localhost:xxxxx connectionId: xxxxxxx
 a | b
---------------------------------------------------------------------
 0 | 0
 1 | 1
(2 rows)

SELECT * FROM alias_test AS alias_test;
NOTICE:  issuing SELECT a, b FROM alias.alias_test_90630800 alias_test
DETAIL:  on server postgres@localhost:xxxxx connectionId: xxxxxxx
 a | b
---------------------------------------------------------------------
 0 | 0
 1 | 1
(2 rows)

SELECT * FROM alias_test AS another_name;
NOTICE:  issuing SELECT a, b FROM alias.alias_test_90630800 another_name
DETAIL:  on server postgres@localhost:xxxxx connectionId: xxxxxxx
 a | b
---------------------------------------------------------------------
 0 | 0
 1 | 1
(2 rows)

SELECT * FROM alias_test AS alias_test(col1, col2);
NOTICE:  issuing SELECT col1, col2 FROM alias.alias_test_90630800 alias_test(col1, col2)
DETAIL:  on server postgres@localhost:xxxxx connectionId: xxxxxxx
 col1 | col2
---------------------------------------------------------------------
    0 |    0
    1 |    1
(2 rows)

SELECT * FROM alias_test AS another_name(col1, col2);
NOTICE:  issuing SELECT col1, col2 FROM alias.alias_test_90630800 another_name(col1, col2)
DETAIL:  on server postgres@localhost:xxxxx connectionId: xxxxxxx
 col1 | col2
---------------------------------------------------------------------
    0 |    0
    1 |    1
(2 rows)

RESET citus.log_remote_commands;
-- test everything on https://github.com/citusdata/citus/issues/4269
CREATE TABLE test (x int, y int, z int);
INSERT INTO test VALUES (0, 1, 2), (3, 4, 5), (6, 7, 8);
-- on PG works fine
SELECT * FROM test AS t1 (a, b, c) ORDER BY 1;
 a | b | c
---------------------------------------------------------------------
 0 | 1 | 2
 3 | 4 | 5
 6 | 7 | 8
(3 rows)

SELECT * FROM test AS t1 (a, b, c) WHERE a  = 6 ORDER BY 2;
 a | b | c
---------------------------------------------------------------------
 6 | 7 | 8
(1 row)

CREATE TABLE test_2 (x int, y int);
INSERT INTO test_2 VALUES (0, 10), (3, 30);
-- on PG works fine
SELECT *
  FROM test t1 (a, b, c) JOIN test_2 t2 (a, d) USING (a)
  ORDER BY a, d;
 a | b | c | d
---------------------------------------------------------------------
 0 | 1 | 2 | 10
 3 | 4 | 5 | 30
(2 rows)

-- same queries on Citus now also work!
SELECT create_distributed_table('test', 'x');
NOTICE:  Copying data from local table...
NOTICE:  copying the data has completed
DETAIL:  The local data in the table is no longer visible, but is still on disk.
HINT:  To remove the local data, run: SELECT truncate_local_data_after_distributing_table($$alias.test$$)
 create_distributed_table
---------------------------------------------------------------------

(1 row)

SELECT create_distributed_table('test_2', 'x');
NOTICE:  Copying data from local table...
NOTICE:  copying the data has completed
DETAIL:  The local data in the table is no longer visible, but is still on disk.
HINT:  To remove the local data, run: SELECT truncate_local_data_after_distributing_table($$alias.test_2$$)
 create_distributed_table
---------------------------------------------------------------------

(1 row)

SET citus.log_remote_commands TO on;
SELECT * FROM test AS t1 (a, b, c) ORDER BY 1;
NOTICE:  issuing SELECT a, b, c FROM alias.test_90630801 t1(a, b, c) ORDER BY a
DETAIL:  on server postgres@localhost:xxxxx connectionId: xxxxxxx
 a | b | c
---------------------------------------------------------------------
 0 | 1 | 2
 3 | 4 | 5
 6 | 7 | 8
(3 rows)

SELECT *
  FROM test t1 (a, b, c) JOIN test_2 t2 (a, d) USING (a)
  ORDER BY a, d;
NOTICE:  issuing SELECT t1.a, t1.b, t1.c, t2.d FROM (alias.test_90630801 t1(a, b, c) JOIN alias.test_2_90630802 t2(a, d) USING (a)) ORDER BY t1.a, t2.d
DETAIL:  on server postgres@localhost:xxxxx connectionId: xxxxxxx
 a | b | c | d
---------------------------------------------------------------------
 0 | 1 | 2 | 10
 3 | 4 | 5 | 30
(2 rows)

SELECT * FROM test AS t1 (a, b, c) WHERE a  = 6 ORDER BY 2;
NOTICE:  issuing SELECT a, b, c FROM alias.test_90630801 t1(a, b, c) WHERE (a OPERATOR(pg_catalog.=) 6) ORDER BY b
DETAIL:  on server postgres@localhost:xxxxx connectionId: xxxxxxx
 a | b | c
---------------------------------------------------------------------
 6 | 7 | 8
(1 row)

SET citus.enable_fast_path_router_planner TO off;
SELECT * FROM test AS t1 (a, b, c) WHERE a  = 6 ORDER BY 2;
NOTICE:  issuing SELECT a, b, c FROM alias.test_90630801 t1(a, b, c) WHERE (a OPERATOR(pg_catalog.=) 6) ORDER BY b
DETAIL:  on server postgres@localhost:xxxxx connectionId: xxxxxxx
 a | b | c
---------------------------------------------------------------------
 6 | 7 | 8
(1 row)

RESET citus.enable_fast_path_router_planner;
-- outer JOINs go through pushdown planner
SELECT *
  FROM test t1 (a, b, c) LEFT  JOIN test_2 t2 (a, d) USING (a)
  ORDER BY a, d;
NOTICE:  issuing SELECT t1.a, t1.b, t1.c, t2.d FROM (alias.test_90630801 t1(a, b, c) LEFT JOIN alias.test_2_90630802 t2(a, d) USING (a)) ORDER BY t1.a, t2.d
DETAIL:  on server postgres@localhost:xxxxx connectionId: xxxxxxx
 a | b | c | d
---------------------------------------------------------------------
 0 | 1 | 2 | 10
 3 | 4 | 5 | 30
 6 | 7 | 8 |
(3 rows)

RESET citus.log_remote_commands;
DROP SCHEMA alias CASCADE;
NOTICE:  drop cascades to 3 other objects
DETAIL:  drop cascades to table alias_test
drop cascades to table test
drop cascades to table test_2