--
-- MULTI_MASTER_DELETE_PROTOCOL
--


SET citus.next_shard_id TO 320000;


-- Create a new range partitioned customer_delete_protocol table and load data into it.
CREATE TABLE customer_delete_protocol (
        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 master_create_distributed_table('customer_delete_protocol', 'c_custkey', 'append');

\copy customer_delete_protocol FROM '@abs_srcdir@/data/customer.1.data' with delimiter '|'
\copy customer_delete_protocol FROM '@abs_srcdir@/data/customer.2.data' with delimiter '|'
\copy customer_delete_protocol FROM '@abs_srcdir@/data/customer.3.data' with delimiter '|'

-- Testing master_apply_delete_command
-- Check that we don't support conditions on columns other than partition key.

SELECT master_apply_delete_command('DELETE FROM customer_delete_protocol
                                           WHERE c_acctbal > 0.0');
-- Check that we delete a shard if and only if all rows in the shard satisfy the condition.
SELECT master_apply_delete_command('DELETE FROM customer_delete_protocol
                                           WHERE c_custkey > 6500');
SELECT count(*) from customer_delete_protocol;

-- Delete one shard that satisfies the given conditions.

SELECT master_apply_delete_command('DELETE FROM customer_delete_protocol
                                           WHERE c_custkey > 1000 AND c_custkey < 3000');
SELECT count(*) from customer_delete_protocol;

-- Delete all shards if no condition is provided.

SELECT master_apply_delete_command('DELETE FROM customer_delete_protocol');
SELECT count(*) FROM customer_delete_protocol;

-- Verify that empty shards are deleted if no condition is provided
SELECT 1 AS one FROM master_create_empty_shard('customer_delete_protocol');
SELECT master_apply_delete_command('DELETE FROM customer_delete_protocol
                                           WHERE c_custkey > 1000');
SELECT master_apply_delete_command('DELETE FROM customer_delete_protocol');

-- Verify that master_apply_delete_command can be called in a transaction block
SELECT 1 AS one FROM master_create_empty_shard('customer_delete_protocol');
BEGIN;
SELECT master_apply_delete_command('DELETE FROM customer_delete_protocol');
COMMIT;
