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Diffstat (limited to 'mysql-test/r/cte_recursive.result')
| -rw-r--r-- | mysql-test/r/cte_recursive.result | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/mysql-test/r/cte_recursive.result b/mysql-test/r/cte_recursive.result index 5090a0ffef9..b6b4ed7fb37 100644 --- a/mysql-test/r/cte_recursive.result +++ b/mysql-test/r/cte_recursive.result @@ -4235,5 +4235,224 @@ drop database db1; create database test; use test; # +# MDEV-23406: query with mutually recursive CTEs when big_tables=1 +# +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); +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; +h_name h_dob w_name w_dob +Dad 1970-02-02 Mom 1975-03-03 +Grandpa Bill 1940-04-05 Grandma Ann 1941-10-15 +Grandpa Ben 1940-10-21 Grandma Sally 1943-08-23 +explain 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; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY <derived3> ALL NULL NULL NULL NULL 1728 +4 DERIVED <derived3> ALL NULL NULL NULL NULL 1728 +5 RECURSIVE UNION <derived3> ALL NULL NULL NULL NULL 1728 +NULL UNION RESULT <union4,5> ALL NULL NULL NULL NULL NULL +3 DERIVED v ALL NULL NULL NULL NULL 12 Using where +3 DERIVED h ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +3 DERIVED w ALL NULL NULL NULL NULL 12 Using where; Using join buffer (incremental, BNL join) +2 RECURSIVE UNION <derived4> ALL NULL NULL NULL NULL 2 +2 RECURSIVE UNION h ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +2 RECURSIVE UNION w ALL NULL NULL NULL NULL 12 Using where; Using join buffer (incremental, BNL join) +NULL UNION RESULT <union3,2> ALL NULL NULL NULL NULL NULL +prepare stmt from "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"; +execute stmt; +h_name h_dob w_name w_dob +Dad 1970-02-02 Mom 1975-03-03 +Grandpa Bill 1940-04-05 Grandma Ann 1941-10-15 +Grandpa Ben 1940-10-21 Grandma Sally 1943-08-23 +execute stmt; +h_name h_dob w_name w_dob +Dad 1970-02-02 Mom 1975-03-03 +Grandpa Bill 1940-04-05 Grandma Ann 1941-10-15 +Grandpa Ben 1940-10-21 Grandma Sally 1943-08-23 +deallocate prepare stmt; +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 +), +coupled_ancestors (id, name, dob, father, mother) +as +( +select * +from folks +where name = 'Me' + union all +select h_id, h_name, h_dob, h_father, h_mother +from ancestor_couples +union all +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; +h_name h_dob w_name w_dob +Dad 1970-02-02 Mom 1975-03-03 +Grandpa Bill 1940-04-05 Grandma Ann 1941-10-15 +Grandpa Ben 1940-10-21 Grandma Sally 1943-08-23 +explain 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 +), +coupled_ancestors (id, name, dob, father, mother) +as +( +select * +from folks +where name = 'Me' + union all +select h_id, h_name, h_dob, h_father, h_mother +from ancestor_couples +union all +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; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 +3 DERIVED folks ALL NULL NULL NULL NULL 12 Using where +4 RECURSIVE UNION <derived2> ALL NULL NULL NULL NULL 2 +5 RECURSIVE UNION <derived2> ALL NULL NULL NULL NULL 2 +NULL UNION RESULT <union3,4,5> ALL NULL NULL NULL NULL NULL +2 DERIVED h ALL NULL NULL NULL NULL 12 +2 DERIVED <derived3> ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +2 DERIVED w ALL NULL NULL NULL NULL 12 Using where; Using join buffer (incremental, BNL join) +prepare stmt from "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 +), +coupled_ancestors (id, name, dob, father, mother) +as +( +select * +from folks +where name = 'Me' + union all +select h_id, h_name, h_dob, h_father, h_mother +from ancestor_couples +union all +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"; +execute stmt; +h_name h_dob w_name w_dob +Dad 1970-02-02 Mom 1975-03-03 +Grandpa Bill 1940-04-05 Grandma Ann 1941-10-15 +Grandpa Ben 1940-10-21 Grandma Sally 1943-08-23 +execute stmt; +h_name h_dob w_name w_dob +Dad 1970-02-02 Mom 1975-03-03 +Grandpa Bill 1940-04-05 Grandma Ann 1941-10-15 +Grandpa Ben 1940-10-21 Grandma Sally 1943-08-23 +deallocate prepare stmt; +drop table folks; +set big_tables=@save_big_tables; +# # End of 10.2 tests # |