\c - - - :master_port

-- do some setup

SELECT 1 FROM master_add_node('localhost', :worker_1_port);
SELECT 1 FROM master_add_node('localhost', :worker_2_port);

CREATE TABLE the_table (a int, b int);
SELECT create_distributed_table('the_table', 'a');

INSERT INTO the_table (a, b) VALUES (1, 1);
INSERT INTO the_table (a, b) VALUES (1, 2);

CREATE TABLE stock (
  s_w_id int NOT NULL,
  s_i_id int NOT NULL,
  s_order_cnt int NOT NULL
);

SELECT create_distributed_table('stock','s_w_id');

INSERT INTO stock SELECT c, c, c FROM generate_series(1, 5) as c;

SET citus.enable_repartition_joins TO ON;
SELECT count(*) FROM the_table t1 JOIN the_table t2 USING(b);

SET citus.enable_single_hash_repartition_joins TO ON;

SELECT count(*) FROM the_table t1 , the_table t2 WHERE t1.a = t2.b;
RESET citus.enable_repartition_joins;


-- connect to the follower and check that a simple select query works, the follower
-- is still in the default cluster and will send queries to the primary nodes

\c - - - :follower_master_port

SELECT * FROM the_table;

select     s_i_id, sum(s_order_cnt) as ordercount
from     stock
group by s_i_id
having   sum(s_order_cnt) > (select max(s_order_cnt) - 3 as having_query from stock)
order by s_i_id;


-- now, connect to the follower but tell it to use secondary nodes. There are no
-- secondary nodes so this should fail.

-- (this is :follower_master_port but substitution doesn't work here)
\c "port=9070 dbname=regression options='-c\ citus.use_secondary_nodes=always'"

SELECT * FROM the_table;

-- add the secondary nodes and try again, the SELECT statement should work this time

\c -reuse-previous=off regression - - :master_port

SELECT 1 FROM master_add_node('localhost', :follower_worker_1_port,
  groupid => (SELECT groupid FROM pg_dist_node WHERE nodeport = :worker_1_port),
  noderole => 'secondary');
SELECT 1 FROM master_add_node('localhost', :follower_worker_2_port,
  groupid => (SELECT groupid FROM pg_dist_node WHERE nodeport = :worker_2_port),
  noderole => 'secondary');

\c "port=9070 dbname=regression options='-c\ citus.use_secondary_nodes=always'"

-- now that we've added secondaries this should work
SELECT * FROM the_table;

select     s_i_id, sum(s_order_cnt) as ordercount
from     stock
group by s_i_id
having   sum(s_order_cnt) > (select max(s_order_cnt) - 3 as having_query from stock)
order by s_i_id;

SET citus.enable_repartition_joins TO ON;
SELECT count(*) FROM the_table t1 JOIN the_table t2 USING(b);

SET citus.enable_single_hash_repartition_joins TO ON;

SELECT count(*) FROM the_table t1 , the_table t2 WHERE t1.a = t2.b;


SELECT
  node_name, node_port
FROM
  master_get_active_worker_nodes()
ORDER BY
  node_name, node_port;

-- okay, now let's play with nodecluster. If we change the cluster of our follower node
-- queries should stat failing again, since there are no worker nodes in the new cluster

\c "port=9070 dbname=regression options='-c\ citus.use_secondary_nodes=always\ -c\ citus.cluster_name=second-cluster'"

-- there are no secondary nodes in this cluster, so this should fail!
SELECT * FROM the_table;

select     s_i_id, sum(s_order_cnt) as ordercount
from     stock
group by s_i_id
having   sum(s_order_cnt) > (select max(s_order_cnt) - 3 as having_query from stock)
order by s_i_id;

-- now move the secondary nodes into the new cluster and see that the follower, finally
-- correctly configured, can run select queries involving them

\c -reuse-previous=off regression - - :master_port
UPDATE pg_dist_node SET nodecluster = 'second-cluster' WHERE noderole = 'secondary';
\c "port=9070 dbname=regression options='-c\ citus.use_secondary_nodes=always\ -c\ citus.cluster_name=second-cluster'"
SELECT * FROM the_table;

-- clean up after ourselves
\c -reuse-previous=off regression - - :master_port
DROP TABLE the_table;
DROP TABLE stock;
