# The tests verify concurrent execution of replicated (MDEV-742)
# XA transactions in the parallel optimistic mode.
# Prove optimistic scheduler handles xid-namesake XA:s.
# That is despite running in parallel there must be no conflicts
# caused by multiple transactions' same xid.

--source include/have_binlog_format_mixed_or_row.inc
--source include/have_innodb.inc
--source include/have_perfschema.inc
--source include/master-slave.inc

--disable_query_log
call mtr.add_suppression("InnoDB: Transaction was aborted due to ");
--enable_query_log

--let $xid_num = 19
--let $repeat  = 17
--let $workers = 7
--connection slave
call mtr.add_suppression("WSREP: handlerton rollback failed");

--source include/stop_slave.inc
# a measure against MDEV-20605
ALTER TABLE mysql.gtid_slave_pos ENGINE=InnoDB;

SET @old_parallel_threads = @@GLOBAL.slave_parallel_threads;
--disable_query_log
--eval SET @@global.slave_parallel_threads  = $workers
--enable_query_log
SET @old_parallel_mode               = @@GLOBAL.slave_parallel_mode;
SET @@global.slave_parallel_mode     ='optimistic';
--source include/start_slave.inc

--connection master
CREATE TABLE t1 (a INT, b INT) ENGINE=InnoDB;

--let $i = $xid_num
--let $t = t1
--disable_query_log
while ($i)
{
--let $k = $repeat
while ($k)
{
--eval XA START 'xid_$i'
--eval INSERT INTO $t SET a=$i, b=$k
--eval XA END 'xid_$i'
--let $one_phase = `SELECT IF(floor(rand()*10)%2, "ONE PHASE", 0)`
  if (!$one_phase)
  {
  --eval XA PREPARE 'xid_$i'
  --eval XA COMMIT 'xid_$i'
  }
  if ($one_phase)
  {
  --eval XA COMMIT 'xid_$i' ONE PHASE
  }

  if (!$one_phase)
  {
  --eval XA START 'xid_$i'
  --eval INSERT INTO $t SET a=$i, b=$k
  --eval XA END 'xid_$i'
  --eval XA PREPARE 'xid_$i'
  --eval XA ROLLBACK 'xid_$i'
  }

--dec $k
}

--dec $i
}
--enable_query_log



# Above-like test complicates execution env to create
# data conflicts as well. They will be resolved by the optmistic
# scheduler as usual.

CREATE TABLE t2 (a INT AUTO_INCREMENT PRIMARY KEY, b INT) ENGINE=InnoDB;

--let $i = $xid_num
--let $t = t2
--disable_query_log
while ($i)
{
--let $k = $repeat
while ($k)
{
--eval XA START 'xid_$i'
--eval INSERT INTO $t SET a=NULL, b=$k
--eval UPDATE $t SET b=$k + 1 WHERE a=last_insert_id() % $workers
--eval XA END 'xid_$i'
--let $one_phase = `SELECT IF(floor(rand()*10)%2, "ONE PHASE", 0)`
  if (!$one_phase)
  {
  --eval XA PREPARE 'xid_$i'
  --eval XA COMMIT 'xid_$i'
  }
  if ($one_phase)
  {
  --eval XA COMMIT 'xid_$i' ONE PHASE
  }

--eval XA START 'xid_$i'
--eval UPDATE $t SET b=$k + 1 WHERE a=last_insert_id() % $workers
--eval DELETE FROM $t WHERE a=last_insert_id()
--eval XA END 'xid_$i'
--eval XA PREPARE 'xid_$i'
--eval XA ROLLBACK 'xid_$i'

--let $do_drop_create = `SELECT IF(floor(rand()*10)%100, 1, 0)`
if ($do_drop_create)
{
  DROP TABLE t1;
  CREATE TABLE t1 (a INT, b INT) ENGINE=InnoDB;
}
--dec $k
}

--dec $i
}
--enable_query_log

--source include/sync_slave_sql_with_master.inc
--let $diff_tables= master:t1, slave:t1
--source include/diff_tables.inc

#
# Clean up.
#
--connection slave
--source include/stop_slave.inc
SET GLOBAL slave_parallel_threads=@old_parallel_threads;
SET GLOBAL slave_parallel_mode=@old_parallel_mode;
--source include/start_slave.inc

--connection master
DROP TABLE t1, t2;

--source include/rpl_end.inc