--
-- MULTI_MASTER_DELETE_PROTOCOL
--
-- Create a new range partitioned customer_delete_protocol table and stage 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 create_distributed_table('customer_delete_protocol', 'c_custkey', 'append');
 create_distributed_table 
--------------------------
 
(1 row)

\STAGE customer_delete_protocol FROM '@abs_srcdir@/data/customer.1.data' with delimiter '|'
\STAGE customer_delete_protocol FROM '@abs_srcdir@/data/customer.2.data' with delimiter '|'
\STAGE customer_delete_protocol FROM '@abs_srcdir@/data/customer.3.data' with delimiter '|'
-- Check that we don't support conditions on columns other than partition key.
SELECT apply_delete_command('DELETE FROM customer_delete_protocol
                                           WHERE c_acctbal > 0.0');
ERROR:  cannot delete from distributed table
DETAIL:  Where clause includes a column other than partition column
-- Check that we delete a shard if and only if all rows in the shard satisfy the condition.
SELECT apply_delete_command('DELETE FROM customer_delete_protocol 
                                           WHERE c_custkey > 6500');
 apply_delete_command 
----------------------
                    0
(1 row)

SELECT count(*) from customer_delete_protocol;
 count 
-------
  3000
(1 row)

-- Delete one shard that satisfies the given conditions.
SELECT apply_delete_command('DELETE FROM customer_delete_protocol
                                           WHERE c_custkey > 1000 AND c_custkey < 3000');
 apply_delete_command 
----------------------
                    1
(1 row)

SELECT count(*) from customer_delete_protocol;
 count 
-------
  2000
(1 row)

-- Delete all shards if no condition is provided.
SELECT apply_delete_command('DELETE FROM customer_delete_protocol');
 apply_delete_command 
----------------------
                    2
(1 row)

SELECT count(*) FROM customer_delete_protocol;
 count 
-------
      
(1 row)

-- Verify that empty shards are deleted if no condition is provided
SELECT create_empty_shard('customer_delete_protocol');
 create_empty_shard 
--------------------
             102041
(1 row)

SELECT apply_delete_command('DELETE FROM customer_delete_protocol
                                           WHERE c_custkey > 1000');
 apply_delete_command 
----------------------
                    0
(1 row)

SELECT apply_delete_command('DELETE FROM customer_delete_protocol');
 apply_delete_command 
----------------------
                    1
(1 row)

-- Verify that apply_delete_command cannot be called in a transaction block
BEGIN;
SELECT apply_delete_command('DELETE FROM customer_delete_protocol');
ERROR:  apply_delete_command cannot run inside a transaction block
ROLLBACK;