mariadb/mysql-test/suite/storage_engine/update_multi.test

# 
# Multi-table UPDATE statements.
#

--source have_engine.inc

--disable_warnings
DROP TABLE IF EXISTS t1,t2;
--enable_warnings

--source create_table.inc
INSERT INTO t1 (a,b) VALUES (1,'a'),(2,'b'),(3,'c'),(4,'d'),(5,'e'),(10000,'foobar');
INSERT INTO t1 (a,b) SELECT a, b FROM t1;

--let $table_name = t2
--let $create_definition = c $char_col, d $int_col
--source create_table.inc
INSERT INTO t2 (c,d) SELECT b, a FROM t1;

UPDATE t1, t2 SET t1.a = t2.d+100, t2.c = 'multi' WHERE c < b AND a + d != 1;
if ($mysql_errname)
{
  --let $functionality = UPDATE
  --source unexpected_result.inc
}
if (!$mysql_errname)
{
  --sorted_result
  SELECT a,b FROM t1;
  --sorted_result
  SELECT c,d FROM t2;

  UPDATE t2, t1 SET t2.d = DEFAULT WHERE c = 'foobar' and b = c;
  --sorted_result
  SELECT a,b FROM t1;
  --sorted_result
  SELECT c,d FROM t2;
}

# Cleanup
DROP TABLE t1, t2;

--source cleanup_engine.inc