create table t1 (a int, b int);
insert into t1 values (1,2),(4,6),(9,7),
(1,1),(2,5),(7,8);
# just VALUES
values (1,2);
1	2
1	2
values (1,2), (3,4), (5.6,0);
1	2
1.0	2
3.0	4
5.6	0
values ("abc", "def");
abc	def
abc	def
# UNION that uses VALUES structure(s)
select 1,2
union
values (1,2);
1	2
1	2
values (1,2)
union
select 1,2;
1	2
1	2
select 1,2
union
values (1,2),(3,4),(5,6),(7,8);
1	2
1	2
3	4
5	6
7	8
select 3,7
union
values (1,2),(3,4),(5,6);
3	7
3	7
1	2
3	4
5	6
select 3,7,4
union
values (1,2,5),(4,5,6);
3	7	4
3	7	4
1	2	5
4	5	6
select 1,2
union
values (1,7),(3,6.5);
1	2
1	2.0
1	7.0
3	6.5
select 1,2
union
values (1,2.0),(3,6);
1	2
1	2.0
3	6.0
select 1.8,2
union
values (1,2),(3,6);
1.8	2
1.8	2
1.0	2
3.0	6
values (1,2.4),(3,6)
union
select 2.8,9;
1	2.4
1.0	2.4
3.0	6.0
2.8	9.0
values (1,2),(3,4),(5,6),(7,8)
union
select 5,6;
1	2
1	2
3	4
5	6
7	8
select "ab","cdf"
union
values ("al","zl"),("we","q");
ab	cdf
ab	cdf
al	zl
we	q
values ("ab", "cdf")
union
select "ab","cdf";
ab	cdf
ab	cdf
values (1,2)
union
values (1,2),(5,6);
1	2
1	2
5	6
values (1,2)
union
values (3,4),(5,6);
1	2
1	2
3	4
5	6
values (1,2)
union
values (1,2)
union values (4,5);
1	2
1	2
4	5
# UNION ALL that uses VALUES structure
values (1,2),(3,4)
union all
select 5,6;
1	2
1	2
3	4
5	6
values (1,2),(3,4)
union all
select 1,2;
1	2
1	2
3	4
1	2
select 5,6
union all
values (1,2),(3,4);
5	6
5	6
1	2
3	4
select 1,2
union all
values (1,2),(3,4);
1	2
1	2
1	2
3	4
values (1,2)
union all
values (1,2),(5,6);
1	2
1	2
1	2
5	6
values (1,2)
union all
values (3,4),(5,6);
1	2
1	2
3	4
5	6
values (1,2)
union all
values (1,2)
union all
values (4,5);
1	2
1	2
1	2
4	5
values (1,2)
union all
values (1,2)
union values (1,2);
1	2
1	2
values (1,2)
union
values (1,2)
union all
values (1,2);
1	2
1	2
1	2
# EXCEPT that uses VALUES structure(s)
select 1,2
except
values (3,4),(5,6);
1	2
1	2
select 1,2
except
values (1,2),(3,4);
1	2
values (1,2),(3,4)
except
select 5,6;
1	2
1	2
3	4
values (1,2),(3,4)
except
select 1,2;
1	2
3	4
values (1,2),(3,4)
except
values (5,6);
1	2
1	2
3	4
values (1,2),(3,4)
except
values (1,2);
1	2
3	4
# INTERSECT that uses VALUES structure(s)
select 1,2
intersect
values (3,4),(5,6);
1	2
select 1,2
intersect
values (1,2),(3,4);
1	2
1	2
values (1,2),(3,4)
intersect
select 5,6;
1	2
values (1,2),(3,4)
intersect
select 1,2;
1	2
1	2
values (1,2),(3,4)
intersect
values (5,6);
1	2
values (1,2),(3,4)
intersect
values (1,2);
1	2
1	2
# combination of different structures that uses VALUES structures : UNION + EXCEPT
values (1,2),(3,4)
except
select 1,2
union values (1,2);
1	2
1	2
3	4
values (1,2),(3,4)
except
values (1,2)
union
values (1,2);
1	2
1	2
3	4
values (1,2),(3,4)
except
values (1,2)
union
values (3,4);
1	2
3	4
values (1,2),(3,4)
union
values (1,2)
except
values (1,2);
1	2
3	4
# combination of different structures that uses VALUES structures : UNION ALL + EXCEPT
values (1,2),(3,4)
except
select 1,2
union all
values (1,2);
1	2
1	2
3	4
values (1,2),(3,4)
except
values (1,2)
union all
values (1,2);
1	2
1	2
3	4
values (1,2),(3,4)
except
values (1,2)
union all
values (3,4);
1	2
3	4
3	4
values (1,2),(3,4)
union all
values (1,2)
except
values (1,2);
1	2
3	4
# combination of different structures that uses VALUES structures : UNION + INTERSECT
values (1,2),(3,4)
intersect
select 1,2
union
values (1,2);
1	2
1	2
values (1,2),(3,4)
intersect
values (1,2)
union
values (1,2);
1	2
1	2
values (1,2),(3,4)
intersect
values (1,2)
union
values (3,4);
1	2
1	2
3	4
values (1,2),(3,4)
union
values (1,2)
intersect
values (1,2);
1	2
1	2
3	4
# combination of different structures that uses VALUES structures : UNION ALL + INTERSECT
values (1,2),(3,4)
intersect
select 1,2
union all
values (1,2);
1	2
1	2
1	2
values (1,2),(3,4)
intersect
values (1,2)
union all
values (1,2);
1	2
1	2
1	2
values (1,2),(3,4)
intersect
values (1,2)
union all
values (3,4);
1	2
1	2
3	4
values (1,2),(3,4)
union all
values (1,2)
intersect
values (1,2);
1	2
1	2
3	4
1	2
# combination of different structures that uses VALUES structures : UNION + UNION ALL
values (1,2),(3,4)
union all
select 1,2
union
values (1,2);
1	2
1	2
3	4
values (1,2),(3,4)
union all
values (1,2)
union
values (1,2);
1	2
1	2
3	4
values (1,2),(3,4)
union all
values (1,2)
union
values (3,4);
1	2
1	2
3	4
values (1,2),(3,4)
union
values (1,2)
union all
values (1,2);
1	2
1	2
3	4
1	2
values (1,2)
union
values (1,2)
union all
values (1,2);
1	2
1	2
1	2
# CTE that uses VALUES structure(s) : non-recursive CTE
with t2 as
(
values (1,2),(3,4)
)
select * from t2;
1	2
1	2
3	4
with t2 as
(
select 1,2
union
values (1,2)
)
select * from t2;
1	2
1	2
with t2 as
(
select 1,2
union
values (1,2),(3,4)
)
select * from t2;
1	2
1	2
3	4
with t2 as
(
values (1,2)
union
select 1,2
)
select * from t2;
1	2
1	2
with t2 as
(
values (1,2),(3,4)
union
select 1,2
)
select * from t2;
1	2
1	2
3	4
with t2 as
(
values (5,6)
union
values (1,2),(3,4)
)
select * from t2;
5	6
5	6
1	2
3	4
with t2 as
(
values (1,2)
union
values (1,2),(3,4)
)
select * from t2;
1	2
1	2
3	4
with t2 as
(
select 1,2
union all
values (1,2),(3,4)
)
select * from t2;
1	2
1	2
1	2
3	4
with t2 as
(
values (1,2),(3,4)
union all
select 1,2
)
select * from t2;
1	2
1	2
3	4
1	2
with t2 as
(
values (1,2)
union all
values (1,2),(3,4)
)
select * from t2;
1	2
1	2
1	2
3	4
# recursive CTE that uses VALUES structure(s) : singe VALUES structure as anchor
with recursive t2(a,b) as
(
values(1,1)
union
select t1.a, t1.b
from t1,t2
where t1.a=t2.a
)
select * from t2;
a	b
1	1
1	2
with recursive t2(a,b) as
(
values(1,1)
union
select t1.a+1, t1.b
from t1,t2
where t1.a=t2.a
)
select * from t2;
a	b
1	1
2	2
2	1
3	5
# recursive CTE that uses VALUES structure(s) : several VALUES structures as anchors
with recursive t2(a,b) as
(
values(1,1)
union
values (3,4)
union
select t2.a+1, t1.b
from t1,t2
where t1.a=t2.a
)
select * from t2;
a	b
1	1
3	4
2	2
2	1
3	5
# recursive CTE that uses VALUES structure(s) : that uses UNION ALL
with recursive t2(a,b,st) as
(
values(1,1,1)
union all
select t2.a, t1.b, t2.st+1
from t1,t2
where t1.a=t2.a and st<3
)
select * from t2;
a	b	st
1	1	1
1	2	2
1	1	2
1	2	3
1	2	3
1	1	3
1	1	3
# recursive CTE that uses VALUES structure(s) : computation of factorial (first 10 elements)
with recursive fact(n,f) as
(
values(1,1)
union
select n+1,f*n from fact where n < 10
)
select * from fact;
n	f
1	1
2	1
3	2
4	6
5	24
6	120
7	720
8	5040
9	40320
10	362880
# Derived table that uses VALUES structure(s) : singe VALUES structure
select * from (values (1,2),(3,4)) as t2;
1	2
1	2
3	4
# Derived table that uses VALUES structure(s) : UNION with VALUES structure(s)
select * from (select 1,2 union values (1,2)) as t2;
1	2
1	2
select * from (select 1,2 union values (1,2),(3,4)) as t2;
1	2
1	2
3	4
select * from (values (1,2) union select 1,2) as t2;
1	2
1	2
select * from (values (1,2),(3,4) union select 1,2) as t2;
1	2
1	2
3	4
select * from (values (5,6) union values (1,2),(3,4)) as t2;
5	6
5	6
1	2
3	4
select * from (values (1,2) union values (1,2),(3,4)) as t2;
1	2
1	2
3	4
# Derived table that uses VALUES structure(s) : UNION ALL with VALUES structure(s)
select * from (select 1,2 union all values (1,2),(3,4)) as t2;
1	2
1	2
1	2
3	4
select * from (values (1,2),(3,4) union all select 1,2) as t2;
1	2
1	2
3	4
1	2
select * from (values (1,2) union all values (1,2),(3,4)) as t2;
1	2
1	2
1	2
3	4
# CREATE VIEW that uses VALUES structure(s) : singe VALUES structure
create view v1 as values (1,2),(3,4);
select * from v1;
1	2
1	2
3	4
drop view v1;
# CREATE VIEW that uses VALUES structure(s) : UNION with VALUES structure(s)
create view v1 as
select 1,2
union
values (1,2);
select * from v1;
1	2
1	2
drop view v1;
create view v1 as
select 1,2
union
values (1,2),(3,4);
select * from v1;
1	2
1	2
3	4
drop view v1;
create view v1 as
values (1,2)
union
select 1,2;
select * from v1;
1	2
1	2
drop view v1;
create view v1 as
values (1,2),(3,4)
union
select 1,2;
select * from v1;
1	2
1	2
3	4
drop view v1;
create view v1 as
values (5,6)
union
values (1,2),(3,4);
select * from v1;
5	6
5	6
1	2
3	4
drop view v1;
# CREATE VIEW that uses VALUES structure(s) : UNION ALL with VALUES structure(s)
create view v1 as
values (1,2)
union
values (1,2),(3,4);
select * from v1;
1	2
1	2
3	4
drop view v1;
create view v1 as
select 1,2
union all
values (1,2),(3,4);
select * from v1;
1	2
1	2
1	2
3	4
drop view v1;
create view v1 as
values (1,2),(3,4)
union all
select 1,2;
select * from v1;
1	2
1	2
3	4
1	2
drop view v1;
create view v1 as
values (1,2)
union all
values (1,2),(3,4);
select * from v1;
1	2
1	2
1	2
3	4
drop view v1;
# prepare statement that uses VALUES structure(s): single VALUES structure
prepare stmt1 from "
values (1,2);
";
execute stmt1;
1	2
1	2
execute stmt1;
1	2
1	2
deallocate prepare stmt1;
# prepare statement that uses VALUES structure(s): UNION with VALUES structure(s)
prepare stmt1 from "
  select 1,2
  union
  values (1,2),(3,4);
";
execute stmt1;
1	2
1	2
3	4
execute stmt1;
1	2
1	2
3	4
deallocate prepare stmt1;
prepare stmt1 from "
  values (1,2),(3,4)
  union
  select 1,2;
";
execute stmt1;
1	2
1	2
3	4
execute stmt1;
1	2
1	2
3	4
deallocate prepare stmt1;
prepare stmt1 from "
  select 1,2
  union
  values (3,4)
  union
  values (1,2);
";
execute stmt1;
1	2
1	2
3	4
execute stmt1;
1	2
1	2
3	4
deallocate prepare stmt1;
prepare stmt1 from "
  values (5,6)
  union
  values (1,2),(3,4);
";
execute stmt1;
5	6
5	6
1	2
3	4
execute stmt1;
5	6
5	6
1	2
3	4
deallocate prepare stmt1;
# prepare statement that uses VALUES structure(s): UNION ALL with VALUES structure(s)
prepare stmt1 from "
  select 1,2
  union
  values (1,2),(3,4);
";
execute stmt1;
1	2
1	2
3	4
execute stmt1;
1	2
1	2
3	4
deallocate prepare stmt1;
prepare stmt1 from "
  values (1,2),(3,4)
  union all
  select 1,2;
";
execute stmt1;
1	2
1	2
3	4
1	2
execute stmt1;
1	2
1	2
3	4
1	2
deallocate prepare stmt1;
prepare stmt1 from "
  select 1,2
  union all
  values (3,4)
  union all
  values (1,2);
";
execute stmt1;
1	2
1	2
3	4
1	2
execute stmt1;
1	2
1	2
3	4
1	2
deallocate prepare stmt1;
prepare stmt1 from "
  values (1,2)
  union all
  values (1,2),(3,4);
";
execute stmt1;
1	2
1	2
1	2
3	4
execute stmt1;
1	2
1	2
1	2
3	4
deallocate prepare stmt1;
# explain query that uses VALUES structure(s): single VALUES structure
explain
values (1,2);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
explain format=json
values (1,2);
EXPLAIN
{
  "query_block": {
    "union_result": {
      "table_name": "<unit1>",
      "access_type": "ALL",
      "query_specifications": [
        {
          "query_block": {
            "select_id": 1,
            "table": {
              "message": "No tables used"
            }
          }
        }
      ]
    }
  }
}
# explain query that uses VALUES structure(s): UNION with VALUES structure(s)
explain
select 1,2
union
values (1,2),(3,4);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
2	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
NULL	UNION RESULT	<union1,2>	ALL	NULL	NULL	NULL	NULL	NULL	
explain
values (1,2),(3,4)
union
select 1,2;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
2	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
NULL	UNION RESULT	<union1,2>	ALL	NULL	NULL	NULL	NULL	NULL	
explain
values (5,6)
union
values (1,2),(3,4);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
2	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
NULL	UNION RESULT	<union1,2>	ALL	NULL	NULL	NULL	NULL	NULL	
explain format=json
select 1,2
union
values (1,2),(3,4);
EXPLAIN
{
  "query_block": {
    "union_result": {
      "table_name": "<union1,2>",
      "access_type": "ALL",
      "query_specifications": [
        {
          "query_block": {
            "select_id": 1,
            "table": {
              "message": "No tables used"
            }
          }
        },
        {
          "query_block": {
            "select_id": 2,
            "operation": "UNION",
            "table": {
              "message": "No tables used"
            }
          }
        }
      ]
    }
  }
}
explain format=json
values (1,2),(3,4)
union
select 1,2;
EXPLAIN
{
  "query_block": {
    "union_result": {
      "table_name": "<union1,2>",
      "access_type": "ALL",
      "query_specifications": [
        {
          "query_block": {
            "select_id": 1,
            "table": {
              "message": "No tables used"
            }
          }
        },
        {
          "query_block": {
            "select_id": 2,
            "operation": "UNION",
            "table": {
              "message": "No tables used"
            }
          }
        }
      ]
    }
  }
}
explain format=json
values (5,6)
union
values (1,2),(3,4);
EXPLAIN
{
  "query_block": {
    "union_result": {
      "table_name": "<union1,2>",
      "access_type": "ALL",
      "query_specifications": [
        {
          "query_block": {
            "select_id": 1,
            "table": {
              "message": "No tables used"
            }
          }
        },
        {
          "query_block": {
            "select_id": 2,
            "operation": "UNION",
            "table": {
              "message": "No tables used"
            }
          }
        }
      ]
    }
  }
}
explain
select 1,2
union
values (3,4)
union
values (1,2);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
2	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
3	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
NULL	UNION RESULT	<union1,2,3>	ALL	NULL	NULL	NULL	NULL	NULL	
explain format=json
select 1,2
union
values (3,4)
union
values (1,2);
EXPLAIN
{
  "query_block": {
    "union_result": {
      "table_name": "<union1,2,3>",
      "access_type": "ALL",
      "query_specifications": [
        {
          "query_block": {
            "select_id": 1,
            "table": {
              "message": "No tables used"
            }
          }
        },
        {
          "query_block": {
            "select_id": 2,
            "operation": "UNION",
            "table": {
              "message": "No tables used"
            }
          }
        },
        {
          "query_block": {
            "select_id": 3,
            "operation": "UNION",
            "table": {
              "message": "No tables used"
            }
          }
        }
      ]
    }
  }
}
# explain query that uses VALUES structure(s): UNION ALL with VALUES structure(s)
explain
select 1,2
union
values (1,2),(3,4);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
2	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
NULL	UNION RESULT	<union1,2>	ALL	NULL	NULL	NULL	NULL	NULL	
explain
values (1,2),(3,4)
union all
select 1,2;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
2	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
explain
values (1,2)
union all
values (1,2),(3,4);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
2	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
explain format=json
values (1,2),(3,4)
union all
select 1,2;
EXPLAIN
{
  "query_block": {
    "union_result": {
      "table_name": "<union1,2>",
      "access_type": "ALL",
      "query_specifications": [
        {
          "query_block": {
            "select_id": 1,
            "table": {
              "message": "No tables used"
            }
          }
        },
        {
          "query_block": {
            "select_id": 2,
            "operation": "UNION",
            "table": {
              "message": "No tables used"
            }
          }
        }
      ]
    }
  }
}
explain format=json
select 1,2
union
values (1,2),(3,4);
EXPLAIN
{
  "query_block": {
    "union_result": {
      "table_name": "<union1,2>",
      "access_type": "ALL",
      "query_specifications": [
        {
          "query_block": {
            "select_id": 1,
            "table": {
              "message": "No tables used"
            }
          }
        },
        {
          "query_block": {
            "select_id": 2,
            "operation": "UNION",
            "table": {
              "message": "No tables used"
            }
          }
        }
      ]
    }
  }
}
explain format=json
values (1,2)
union all
values (1,2),(3,4);
EXPLAIN
{
  "query_block": {
    "union_result": {
      "table_name": "<union1,2>",
      "access_type": "ALL",
      "query_specifications": [
        {
          "query_block": {
            "select_id": 1,
            "table": {
              "message": "No tables used"
            }
          }
        },
        {
          "query_block": {
            "select_id": 2,
            "operation": "UNION",
            "table": {
              "message": "No tables used"
            }
          }
        }
      ]
    }
  }
}
explain
select 1,2
union all
values (3,4)
union all
values (1,2);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
2	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
3	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
explain format=json
select 1,2
union all
values (3,4)
union all
values (1,2);
EXPLAIN
{
  "query_block": {
    "union_result": {
      "table_name": "<union1,2,3>",
      "access_type": "ALL",
      "query_specifications": [
        {
          "query_block": {
            "select_id": 1,
            "table": {
              "message": "No tables used"
            }
          }
        },
        {
          "query_block": {
            "select_id": 2,
            "operation": "UNION",
            "table": {
              "message": "No tables used"
            }
          }
        },
        {
          "query_block": {
            "select_id": 3,
            "operation": "UNION",
            "table": {
              "message": "No tables used"
            }
          }
        }
      ]
    }
  }
}
# analyze query that uses VALUES structure(s): single VALUES structure
analyze
values (1,2);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
analyze format=json
values (1,2);
ANALYZE
{
  "query_block": {
    "union_result": {
      "table_name": "<unit1>",
      "access_type": "ALL",
      "r_loops": 0,
      "r_rows": null,
      "query_specifications": [
        {
          "query_block": {
            "select_id": 1,
            "table": {
              "message": "No tables used"
            }
          }
        }
      ]
    }
  }
}
# analyze query that uses VALUES structure(s): UNION with VALUES structure(s)
analyze
select 1,2
union
values (1,2),(3,4);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
2	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
NULL	UNION RESULT	<union1,2>	ALL	NULL	NULL	NULL	NULL	NULL	2.00	NULL	NULL	
analyze
values (1,2),(3,4)
union
select 1,2;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
2	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
NULL	UNION RESULT	<union1,2>	ALL	NULL	NULL	NULL	NULL	NULL	2.00	NULL	NULL	
analyze
values (5,6)
union
values (1,2),(3,4);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
2	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
NULL	UNION RESULT	<union1,2>	ALL	NULL	NULL	NULL	NULL	NULL	3.00	NULL	NULL	
analyze format=json
select 1,2
union
values (1,2),(3,4);
ANALYZE
{
  "query_block": {
    "union_result": {
      "table_name": "<union1,2>",
      "access_type": "ALL",
      "r_loops": 1,
      "r_rows": 2,
      "query_specifications": [
        {
          "query_block": {
            "select_id": 1,
            "table": {
              "message": "No tables used"
            }
          }
        },
        {
          "query_block": {
            "select_id": 2,
            "operation": "UNION",
            "table": {
              "message": "No tables used"
            }
          }
        }
      ]
    }
  }
}
analyze format=json
values (1,2),(3,4)
union
select 1,2;
ANALYZE
{
  "query_block": {
    "union_result": {
      "table_name": "<union1,2>",
      "access_type": "ALL",
      "r_loops": 1,
      "r_rows": 2,
      "query_specifications": [
        {
          "query_block": {
            "select_id": 1,
            "table": {
              "message": "No tables used"
            }
          }
        },
        {
          "query_block": {
            "select_id": 2,
            "operation": "UNION",
            "table": {
              "message": "No tables used"
            }
          }
        }
      ]
    }
  }
}
analyze format=json
values (5,6)
union
values (1,2),(3,4);
ANALYZE
{
  "query_block": {
    "union_result": {
      "table_name": "<union1,2>",
      "access_type": "ALL",
      "r_loops": 1,
      "r_rows": 3,
      "query_specifications": [
        {
          "query_block": {
            "select_id": 1,
            "table": {
              "message": "No tables used"
            }
          }
        },
        {
          "query_block": {
            "select_id": 2,
            "operation": "UNION",
            "table": {
              "message": "No tables used"
            }
          }
        }
      ]
    }
  }
}
analyze
select 1,2
union
values (3,4)
union
values (1,2);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
2	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
3	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
NULL	UNION RESULT	<union1,2,3>	ALL	NULL	NULL	NULL	NULL	NULL	2.00	NULL	NULL	
analyze format=json
select 1,2
union
values (3,4)
union
values (1,2);
ANALYZE
{
  "query_block": {
    "union_result": {
      "table_name": "<union1,2,3>",
      "access_type": "ALL",
      "r_loops": 1,
      "r_rows": 2,
      "query_specifications": [
        {
          "query_block": {
            "select_id": 1,
            "table": {
              "message": "No tables used"
            }
          }
        },
        {
          "query_block": {
            "select_id": 2,
            "operation": "UNION",
            "table": {
              "message": "No tables used"
            }
          }
        },
        {
          "query_block": {
            "select_id": 3,
            "operation": "UNION",
            "table": {
              "message": "No tables used"
            }
          }
        }
      ]
    }
  }
}
# analyze query that uses VALUES structure(s): UNION ALL with VALUES structure(s)
analyze
select 1,2
union
values (1,2),(3,4);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
2	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
NULL	UNION RESULT	<union1,2>	ALL	NULL	NULL	NULL	NULL	NULL	2.00	NULL	NULL	
analyze
values (1,2),(3,4)
union all
select 1,2;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
2	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
analyze
values (1,2)
union all
values (1,2),(3,4);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
2	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
analyze format=json
values (1,2),(3,4)
union all
select 1,2;
ANALYZE
{
  "query_block": {
    "union_result": {
      "table_name": "<union1,2>",
      "access_type": "ALL",
      "r_loops": 0,
      "r_rows": null,
      "query_specifications": [
        {
          "query_block": {
            "select_id": 1,
            "table": {
              "message": "No tables used"
            }
          }
        },
        {
          "query_block": {
            "select_id": 2,
            "operation": "UNION",
            "table": {
              "message": "No tables used"
            }
          }
        }
      ]
    }
  }
}
analyze format=json
select 1,2
union
values (1,2),(3,4);
ANALYZE
{
  "query_block": {
    "union_result": {
      "table_name": "<union1,2>",
      "access_type": "ALL",
      "r_loops": 1,
      "r_rows": 2,
      "query_specifications": [
        {
          "query_block": {
            "select_id": 1,
            "table": {
              "message": "No tables used"
            }
          }
        },
        {
          "query_block": {
            "select_id": 2,
            "operation": "UNION",
            "table": {
              "message": "No tables used"
            }
          }
        }
      ]
    }
  }
}
analyze format=json
values (1,2)
union all
values (1,2),(3,4);
ANALYZE
{
  "query_block": {
    "union_result": {
      "table_name": "<union1,2>",
      "access_type": "ALL",
      "r_loops": 0,
      "r_rows": null,
      "query_specifications": [
        {
          "query_block": {
            "select_id": 1,
            "table": {
              "message": "No tables used"
            }
          }
        },
        {
          "query_block": {
            "select_id": 2,
            "operation": "UNION",
            "table": {
              "message": "No tables used"
            }
          }
        }
      ]
    }
  }
}
analyze
select 1,2
union all
values (3,4)
union all
values (1,2);
id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
2	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
3	UNION	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
analyze format=json
select 1,2
union all
values (3,4)
union all
values (1,2);
ANALYZE
{
  "query_block": {
    "union_result": {
      "table_name": "<union1,2,3>",
      "access_type": "ALL",
      "r_loops": 0,
      "r_rows": null,
      "query_specifications": [
        {
          "query_block": {
            "select_id": 1,
            "table": {
              "message": "No tables used"
            }
          }
        },
        {
          "query_block": {
            "select_id": 2,
            "operation": "UNION",
            "table": {
              "message": "No tables used"
            }
          }
        },
        {
          "query_block": {
            "select_id": 3,
            "operation": "UNION",
            "table": {
              "message": "No tables used"
            }
          }
        }
      ]
    }
  }
}
drop table t1;