mariadb/mysql-test/suite/maria/crash-recursive.test

#
# This test simulates an error in an aria file discovered during a recursive SQL call.
# The error handling causes used join structures to be deleted, which caused crashes in
# upper levels when trying to access structures that does not exist anymore
#

--source include/have_debug_sync.inc
--source include/not_embedded.inc

set @save_big_tables=@@big_tables;
set big_tables=1;

create table  folks(id int, name char(32), dob date, father int, mother int);

insert into folks values
(100, 'Me', '2000-01-01', 20, 30),
(20, 'Dad', '1970-02-02', 10, 9),
(30, 'Mom', '1975-03-03', 8, 7),
(10, 'Grandpa Bill', '1940-04-05', null, null),
(9, 'Grandma Ann', '1941-10-15', null, null),
(25, 'Uncle Jim', '1968-11-18', 8, 7),
(98, 'Sister Amy', '2001-06-20', 20, 30),
(7, 'Grandma Sally', '1943-08-23', null, 6),
(8, 'Grandpa Ben', '1940-10-21', null, null),
(6, 'Grandgrandma Martha', '1923-05-17', null, null),
(67, 'Cousin Eddie', '1992-02-28', 25, 27),
(27, 'Auntie Melinda', '1971-03-29', null, null);


call mtr.add_suppression(".*marked as crashed.*");
SET @saved_dbug= @@SESSION.debug_dbug;
SET SESSION debug_dbug="+d,ha_rnd_next_error";
SET @ha_rnd_next_error_counter=110;

let q=
with recursive
ancestor_couples(h_id, h_name, h_dob, h_father, h_mother,
                 w_id, w_name, w_dob, w_father, w_mother)
as
(
  select h.*, w.*
    from folks h, folks w,  coupled_ancestors a
      where a.father = h.id AND a.mother = w.id
  union
  select h.*, w.*
    from folks v, folks h, folks w
      where v.name = 'Me' and
            (v.father = h.id AND v.mother= w.id)
),
coupled_ancestors (id, name, dob, father, mother)
as
(
  select h_id, h_name, h_dob, h_father, h_mother
    from ancestor_couples
  union
  select w_id, w_name, w_dob, w_father, w_mother
    from ancestor_couples
)
select h_name, h_dob, w_name, w_dob
  from ancestor_couples;

--error ER_CRASHED_ON_USAGE
eval $q;
drop table folks;

set big_tables=@save_big_tables;
SET @@SESSION.debug_dbug=@saved_dbug;