--
-- MULTI_CREATE_TABLE
--

-- Create new table definitions for use in testing in distributed planning and
-- execution functionality. Also create indexes to boost performance. Since we
-- need to cover both reference join and partitioned join, we have created
-- reference and hash-distributed version of orders, customer and part tables.

SET citus.next_shard_id TO 360000;

CREATE TABLE lineitem (
	l_orderkey bigint not null,
	l_partkey integer not null,
	l_suppkey integer not null,
	l_linenumber integer not null,
	l_quantity decimal(15, 2) not null,
	l_extendedprice decimal(15, 2) not null,
	l_discount decimal(15, 2) not null,
	l_tax decimal(15, 2) not null,
	l_returnflag char(1) not null,
	l_linestatus char(1) not null,
	l_shipdate date not null,
	l_commitdate date not null,
	l_receiptdate date not null,
	l_shipinstruct char(25) not null,
	l_shipmode char(10) not null,
	l_comment varchar(44) not null,
	PRIMARY KEY(l_orderkey, l_linenumber) );
SELECT create_distributed_table('lineitem', 'l_orderkey', 'hash', shard_count := 2);

CREATE INDEX lineitem_time_index ON lineitem (l_shipdate);

CREATE TABLE orders (
	o_orderkey bigint not null,
	o_custkey integer not null,
	o_orderstatus char(1) not null,
	o_totalprice decimal(15,2) not null,
	o_orderdate date not null,
	o_orderpriority char(15) not null,
	o_clerk char(15) not null,
	o_shippriority integer not null,
	o_comment varchar(79) not null,
	PRIMARY KEY(o_orderkey) );
SELECT create_distributed_table('orders', 'o_orderkey', 'hash', colocate_with := 'lineitem');

CREATE TABLE orders_reference (
	o_orderkey bigint not null,
	o_custkey integer not null,
	o_orderstatus char(1) not null,
	o_totalprice decimal(15,2) not null,
	o_orderdate date not null,
	o_orderpriority char(15) not null,
	o_clerk char(15) not null,
	o_shippriority integer not null,
	o_comment varchar(79) not null,
	PRIMARY KEY(o_orderkey) );
SELECT create_reference_table('orders_reference');


CREATE TABLE customer (
	c_custkey integer not null,
	c_name varchar(25) not null,
	c_address varchar(40) not null,
	c_nationkey integer not null,
	c_phone char(15) not null,
	c_acctbal decimal(15,2) not null,
	c_mktsegment char(10) not null,
	c_comment varchar(117) not null);
SELECT create_reference_table('customer');

CREATE TABLE customer_append (
	c_custkey integer not null,
	c_name varchar(25) not null,
	c_address varchar(40) not null,
	c_nationkey integer not null,
	c_phone char(15) not null,
	c_acctbal decimal(15,2) not null,
	c_mktsegment char(10) not null,
	c_comment varchar(117) not null);
SELECT create_distributed_table('customer_append', 'c_custkey', 'append');
SELECT master_create_empty_shard('customer_append');

CREATE TABLE nation (
	n_nationkey integer not null,
	n_name char(25) not null,
	n_regionkey integer not null,
	n_comment varchar(152));

SELECT create_reference_table('nation');

CREATE TABLE part (
	p_partkey integer not null,
	p_name varchar(55) not null,
	p_mfgr char(25) not null,
	p_brand char(10) not null,
	p_type varchar(25) not null,
	p_size integer not null,
	p_container char(10) not null,
	p_retailprice decimal(15,2) not null,
	p_comment varchar(23) not null);
SELECT create_reference_table('part');

CREATE TABLE part_append (
	p_partkey integer not null,
	p_name varchar(55) not null,
	p_mfgr char(25) not null,
	p_brand char(10) not null,
	p_type varchar(25) not null,
	p_size integer not null,
	p_container char(10) not null,
	p_retailprice decimal(15,2) not null,
	p_comment varchar(23) not null);
SELECT create_distributed_table('part_append', 'p_partkey', 'append');
SELECT master_create_empty_shard('part_append');

CREATE TABLE supplier
(
	s_suppkey integer not null,
	s_name char(25) not null,
	s_address varchar(40) not null,
	s_nationkey integer,
	s_phone char(15) not null,
	s_acctbal decimal(15,2) not null,
	s_comment varchar(101) not null
);
SELECT create_reference_table('supplier');

-- create a single shard supplier table which is not
-- a reference table
CREATE TABLE supplier_single_shard
(
	s_suppkey integer not null,
 	s_name char(25) not null,
 	s_address varchar(40) not null,
 	s_nationkey integer,
 	s_phone char(15) not null,
  	s_acctbal decimal(15,2) not null,
  	s_comment varchar(101) not null
);
SELECT create_distributed_table('supplier_single_shard', 's_suppkey', 'hash', shard_count := 1);

CREATE TABLE mx_table_test (col1 int, col2 text);

SET citus.next_shard_id TO 360013;

-- Test initial data loading
CREATE TABLE data_load_test (col1 int, col2 text, col3 serial);
INSERT INTO data_load_test VALUES (132, 'hello');
INSERT INTO data_load_test VALUES (243, 'world');

-- table must be empty when using append- or range-partitioning
SELECT create_distributed_table('data_load_test', 'col1', 'append');
SELECT create_distributed_table('data_load_test', 'col1', 'range');

-- create_distributed_table creates shards and copies data into the distributed table
SELECT create_distributed_table('data_load_test', 'col1');
SELECT * FROM data_load_test ORDER BY col1;
DROP TABLE data_load_test;

-- test queries on distributed tables with no shards
CREATE TABLE no_shard_test (col1 int, col2 text);
SELECT create_distributed_table('no_shard_test', 'col1', 'append');
SELECT * FROM no_shard_test WHERE col1 > 1;
DROP TABLE no_shard_test;

CREATE TABLE no_shard_test (col1 int, col2 text);
SELECT create_distributed_table('no_shard_test', 'col1', 'range');
SELECT * FROM no_shard_test WHERE col1 > 1;
DROP TABLE no_shard_test;

-- ensure writes in the same transaction as create_distributed_table are visible
BEGIN;
CREATE TABLE data_load_test (col1 int, col2 text, col3 serial);
INSERT INTO data_load_test VALUES (132, 'hello');
SELECT create_distributed_table('data_load_test', 'col1');
INSERT INTO data_load_test VALUES (243, 'world');
END;
SELECT * FROM data_load_test ORDER BY col1;
DROP TABLE data_load_test;

-- creating co-located distributed tables in the same transaction works
BEGIN;
CREATE TABLE data_load_test1 (col1 int, col2 text, col3 serial);
INSERT INTO data_load_test1 VALUES (132, 'hello');
SELECT create_distributed_table('data_load_test1', 'col1');

CREATE TABLE data_load_test2 (col1 int, col2 text, col3 serial);
INSERT INTO data_load_test2 VALUES (132, 'world');
SELECT create_distributed_table('data_load_test2', 'col1');

SELECT a.col2 ||' '|| b.col2
FROM data_load_test1 a JOIN data_load_test2 b USING (col1)
WHERE col1 = 132;

DROP TABLE data_load_test1, data_load_test2;
END;

-- distributing catalog tables is not supported
SELECT create_distributed_table('pg_class', 'relname');
SELECT create_reference_table('pg_class');


-- test shard_count parameter
-- first set citus.shard_count so we know the parameter works
SET citus.shard_count TO 10;

CREATE TABLE shard_count_table (a INT, b TEXT);
CREATE TABLE shard_count_table_2 (a INT, b TEXT);

SELECT create_distributed_table('shard_count_table', 'a', shard_count:=5);
SELECT shard_count FROM citus_tables WHERE table_name::text = 'shard_count_table';

SELECT create_distributed_table('shard_count_table_2', 'a', shard_count:=0);
SELECT create_distributed_table('shard_count_table_2', 'a', shard_count:=-100);
SELECT create_distributed_table('shard_count_table_2', 'a', shard_count:=64001);

-- shard count with colocate with table should error
SELECT create_distributed_table('shard_count_table_2', 'a', shard_count:=12, colocate_with:='shard_count');

-- none should not error
SELECT create_distributed_table('shard_count_table_2', 'a', shard_count:=12, colocate_with:='none');

DROP TABLE shard_count_table, shard_count_table_2;


-- test shard splitting doesn't break shard_count parameter
-- when shard count is given table needs to have exactly that
-- many shards, regardless of shard splitting on other tables

-- ensure there is no colocation group with 9 shards
SELECT count(*) FROM pg_dist_colocation WHERE shardcount = 9;
SET citus.shard_count TO 9;
SET citus.shard_replication_factor TO 1;

CREATE TABLE shard_split_table (a int, b int);
SELECT create_distributed_table ('shard_split_table', 'a');
SELECT 1 FROM isolate_tenant_to_new_shard('shard_split_table', 5, shard_transfer_mode => 'block_writes');

-- show the difference in pg_dist_colocation and citus_tables shard counts
SELECT
	(
		SELECT shardcount FROM pg_dist_colocation WHERE colocationid IN
		(
			SELECT colocation_id FROM citus_tables WHERE table_name = 'shard_split_table'::regclass
		)
	) AS "pg_dist_colocation",
	(SELECT shard_count FROM citus_tables WHERE table_name = 'shard_split_table'::regclass) AS "citus_tables";

CREATE TABLE shard_split_table_2 (a int, b int);
SELECT create_distributed_table ('shard_split_table_2', 'a', shard_count:=9);

SELECT a.colocation_id = b.colocation_id FROM citus_tables a, citus_tables b
	WHERE a.table_name = 'shard_split_table'::regclass AND b.table_name = 'shard_split_table_2'::regclass;

SELECT shard_count FROM citus_tables WHERE table_name = 'shard_split_table_2'::regclass;

-- also check we don't break regular behaviour
CREATE TABLE shard_split_table_3 (a int, b int);
SELECT create_distributed_table ('shard_split_table_3', 'a');

SELECT a.colocation_id = b.colocation_id FROM citus_tables a, citus_tables b
	WHERE a.table_name = 'shard_split_table'::regclass AND b.table_name = 'shard_split_table_3'::regclass;

SELECT shard_count FROM citus_tables WHERE table_name = 'shard_split_table_3'::regclass;

DROP TABLE shard_split_table, shard_split_table_2, shard_split_table_3;


-- test a shard count with an empty default colocation group
-- ensure there is no colocation group with 13 shards
SELECT count(*) FROM pg_dist_colocation WHERE shardcount = 13;
SET citus.shard_count TO 13;

CREATE TABLE shard_count_drop_table (a int);
SELECT create_distributed_table('shard_count_drop_table', 'a');
DROP TABLE shard_count_drop_table;

CREATE TABLE shard_count_table_3 (a int);
SELECT create_distributed_table('shard_count_table_3', 'a', shard_count:=13);

SELECT shardcount FROM pg_dist_colocation WHERE colocationid IN
(
	SELECT colocation_id FROM citus_tables WHERE table_name = 'shard_count_table_3'::regclass
);

CREATE TEMP TABLE temp_table(a int);
-- make sure temp table cannot be distributed and we give a good error
select create_distributed_table('temp_table', 'a');
select create_reference_table('temp_table');
DROP TABLE temp_table;

DROP TABLE shard_count_table_3;

-- test shard count 1 placement with colocate none.
-- create a base table instance
set citus.enable_single_shard_table_multi_node_placement to on;
CREATE TABLE shard_count_table_1_inst_1 (a int);
SELECT create_distributed_table('shard_count_table_1_inst_1', 'a', shard_count:=1, colocate_with:='none');

-- create another table with similar requirements
CREATE TABLE shard_count_table_1_inst_2 (a int);
SELECT create_distributed_table('shard_count_table_1_inst_2', 'a', shard_count:=1, colocate_with:='none');

-- Now check placement:
SELECT (SELECT colocation_id FROM citus_tables WHERE table_name = 'shard_count_table_1_inst_1'::regclass) != (SELECT colocation_id FROM citus_tables WHERE table_name = 'shard_count_table_1_inst_2'::regclass);

-- double check shard counts
SELECT (SELECT shard_count FROM citus_tables WHERE table_name = 'shard_count_table_1_inst_1'::regclass) = (SELECT shard_count FROM citus_tables WHERE table_name = 'shard_count_table_1_inst_2'::regclass);
SELECT shard_count = 1 FROM citus_tables WHERE table_name = 'shard_count_table_1_inst_1'::regclass;

-- check placement: These should be placed on different workers.
SELECT nodename || ':' || nodeport AS inst_1_node_endpoint FROM citus_shards WHERE table_name = 'shard_count_table_1_inst_1'::regclass \gset
SELECT nodename || ':' || nodeport AS inst_2_node_endpoint FROM citus_shards WHERE table_name = 'shard_count_table_1_inst_2'::regclass \gset
SELECT :'inst_1_node_endpoint', :'inst_2_node_endpoint', :'inst_1_node_endpoint' = :'inst_2_node_endpoint';

DROP TABLE shard_count_table_1_inst_1;
DROP TABLE shard_count_table_1_inst_2;