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Galina Shalygina
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Initial commit for mdev-9864 containing only test files
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‎mysql-test/r/cte_recursive.result

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create table t1 (a int, b varchar(32));
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insert into t1 values
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(4,'aaaa' ), (7,'bb'), (1,'ccc'), (4,'dd');
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insert into t1 values
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(3,'eee'), (7,'bb'), (1,'fff'), (4,'ggg');
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with recursive
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a1(a,b) as
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(select * from t1 where t1.a>3
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union
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select * from b1 where b1.a >3
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union
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select * from c1 where c1.a>3),
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b1(a,b) as
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(select * from a1 where a1.b > 'ccc'
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union
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select * from c1 where c1.b > 'ddd'),
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c1(a,b) as
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(select * from a1 where a1.a<6 and a1.b< 'zz'
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union
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select * from b1 where b1.b > 'auu')
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select * from c1;
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ERROR HY000: No anchors for recursive WITH element 'b1'
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drop table t1;
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create table folks(id int, name char(32), dob date, father int, mother int);
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insert into folks values
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(100, 'Vasya', '2000-01-01', 20, 30),
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(20, 'Dad', '1970-02-02', 10, 9),
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(30, 'Mom', '1975-03-03', 8, 7),
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(10, 'Grandpa Bill', '1940-04-05', null, null),
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(9, 'Grandma Ann', '1941-10-15', null, null),
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(25, 'Uncle Jim', '1968-11-18', 8, 7),
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(98, 'Sister Amy', '2001-06-20', 20, 30),
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(8, 'Grandma Sally', '1943-08-23', 5, 6),
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(6, 'Grandgrandma Martha', '1923-05-17', null, null),
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(67, 'Cousin Eddie', '1992-02-28', 25, 27),
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(27, 'Auntie Melinda', '1971-03-29', null, null);
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with recursive
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ancestors
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as
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(
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select *
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from folks
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where name = 'Vasya' and dob = '2000-01-01'
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union
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select p.id, p.name, p.dob, p.father, p.mother
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from folks as p, ancestors AS a
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where p.id = a.father or p.id = a.mother
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)
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select * from ancestors;
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id name dob father mother
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100 Vasya 2000-01-01 20 30
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20 Dad 1970-02-02 10 9
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30 Mom 1975-03-03 8 7
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10 Grandpa Bill 1940-04-05 NULL NULL
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9 Grandma Ann 1941-10-15 NULL NULL
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8 Grandma Sally 1943-08-23 5 6
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6 Grandgrandma Martha 1923-05-17 NULL NULL
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with recursive
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ancestors
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as
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(
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select p.*
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from folks as p, ancestors AS a
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where p.id = a.father or p.id = a.mother
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union
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select *
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from folks
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where name = 'Vasya' and dob = '2000-01-01'
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)
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select * from ancestors;
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id name dob father mother
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100 Vasya 2000-01-01 20 30
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20 Dad 1970-02-02 10 9
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30 Mom 1975-03-03 8 7
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10 Grandpa Bill 1940-04-05 NULL NULL
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9 Grandma Ann 1941-10-15 NULL NULL
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8 Grandma Sally 1943-08-23 5 6
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6 Grandgrandma Martha 1923-05-17 NULL NULL
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with recursive
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ancestors
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as
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(
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select *
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from folks
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where name = 'Cousin Eddie'
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union
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select p.*
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from folks as p, ancestors as a
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where p.id = a.father or p.id = a.mother
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)
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select * from ancestors;
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id name dob father mother
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67 Cousin Eddie 1992-02-28 25 27
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25 Uncle Jim 1968-11-18 8 7
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27 Auntie Melinda 1971-03-29 NULL NULL
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8 Grandma Sally 1943-08-23 5 6
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6 Grandgrandma Martha 1923-05-17 NULL NULL
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with recursive
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ancestors
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as
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(
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select *
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from folks
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where name = 'Vasya' or name='Sister Amy'
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union
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select p.*
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from folks as p, ancestors as a
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where p.id = a.father or p.id = a.mother
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)
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select * from ancestors;
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id name dob father mother
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100 Vasya 2000-01-01 20 30
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98 Sister Amy 2001-06-20 20 30
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20 Dad 1970-02-02 10 9
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30 Mom 1975-03-03 8 7
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10 Grandpa Bill 1940-04-05 NULL NULL
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9 Grandma Ann 1941-10-15 NULL NULL
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8 Grandma Sally 1943-08-23 5 6
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6 Grandgrandma Martha 1923-05-17 NULL NULL
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with recursive
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prev_gen
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as
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(
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select folks.*
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from folks, prev_gen
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where folks.id=prev_gen.father or folks.id=prev_gen.mother
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union
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select *
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from folks
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where name='Vasya'
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),
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ancestors
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as
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(
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select *
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from folks
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where name='Vasya'
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union
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select *
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from ancestors
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union
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select *
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from prev_gen
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)
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select ancestors.name, ancestors.dob from ancestors;
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name dob
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Vasya 2000-01-01
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Dad 1970-02-02
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Mom 1975-03-03
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Grandpa Bill 1940-04-05
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Grandma Ann 1941-10-15
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Grandma Sally 1943-08-23
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Grandgrandma Martha 1923-05-17
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with recursive
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descendants
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as
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(
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select *
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from folks
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where name = 'Grandpa Bill'
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union
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select folks.*
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from folks, descendants as d
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where d.id=folks.father or d.id=folks.mother
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)
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select * from descendants;
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id name dob father mother
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10 Grandpa Bill 1940-04-05 NULL NULL
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20 Dad 1970-02-02 10 9
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100 Vasya 2000-01-01 20 30
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98 Sister Amy 2001-06-20 20 30
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with recursive
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descendants
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as
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(
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select *
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from folks
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where name = 'Grandma Sally'
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union
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select folks.*
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from folks, descendants as d
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where d.id=folks.father or d.id=folks.mother
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)
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select * from descendants;
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id name dob father mother
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8 Grandma Sally 1943-08-23 5 6
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30 Mom 1975-03-03 8 7
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25 Uncle Jim 1968-11-18 8 7
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100 Vasya 2000-01-01 20 30
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98 Sister Amy 2001-06-20 20 30
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67 Cousin Eddie 1992-02-28 25 27
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with recursive
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ancestors
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as
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(
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select *
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from folks
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where name = 'Vasya' and dob = '2000-01-01'
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union
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select p.*
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from folks as p, ancestors AS a
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where p.id = a.father OR p.id = a.mother
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)
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select *
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from ancestors t1, ancestors t2
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where exists (select * from ancestors a
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where a.father=t1.id AND a.mother=t2.id);
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id name dob father mother id name dob father mother
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20 Dad 1970-02-02 10 9 30 Mom 1975-03-03 8 7
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10 Grandpa Bill 1940-04-05 NULL NULL 9 Grandma Ann 1941-10-15 NULL NULL
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with
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ancestor_couples(husband, h_dob, wife, w_dob)
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as
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(
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with recursive
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ancestors
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as
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(
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select *
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from folks
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where name = 'Vasya'
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union
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select p.*
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from folks as p, ancestors AS a
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where p.id = a.father OR p.id = a.mother
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)
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select t1.name, t1.dob, t2.name, t2.dob
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from ancestors t1, ancestors t2
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where exists (select * from ancestors a
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where a.father=t1.id AND a.mother=t2.id)
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)
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select * from ancestor_couples;
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husband h_dob wife w_dob
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Dad 1970-02-02 Mom 1975-03-03
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Grandpa Bill 1940-04-05 Grandma Ann 1941-10-15
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with recursive
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ancestors
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as
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(
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select *
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from folks
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where name = 'Vasya' and dob = '2000-01-01'
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union
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select p.*
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from folks as p, ancestors AS a
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where p.id = a.father
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union
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select p.*
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from folks as p, ancestors AS a
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where p.id = a.mother
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)
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select * from ancestors;
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id name dob father mother
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100 Vasya 2000-01-01 20 30
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20 Dad 1970-02-02 10 9
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30 Mom 1975-03-03 8 7
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9 Grandma Ann 1941-10-15 NULL NULL
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10 Grandpa Bill 1940-04-05 NULL NULL
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8 Grandma Sally 1943-08-23 5 6
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6 Grandgrandma Martha 1923-05-17 NULL NULL
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with recursive
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ancestor_couples(h_id, h_name, h_dob, h_father, h_mother,
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w_id, w_name, w_dob, w_father, w_mother)
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as
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(
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select h.*, w.*
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from folks h, folks w, coupled_ancestors a
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where a.father = h.id AND a.mother = w.id
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union
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select h.*, w.*
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from folks v, folks h, folks w
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where v.name = 'Vasya' and
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(v.father = h.id AND v.mother= w.id)
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),
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coupled_ancestors (id, name, dob, father, mother)
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as
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(
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select h_id, h_name, h_dob, h_father, h_mother
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from ancestor_couples
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union
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select w_id, w_name, w_dob, w_father, w_mother
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from ancestor_couples
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)
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select h_name, h_dob, w_name, w_dob
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from ancestor_couples;
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h_name h_dob w_name w_dob
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Dad 1970-02-02 Mom 1975-03-03
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Grandpa Bill 1940-04-05 Grandma Ann 1941-10-15
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drop table folks;

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