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mariadb/mysql-test/main/intersect.result
Sergei Petrunia 31536b2477 MDEV-30972: ANALYZE FORMAT=JSON: some time is unaccounted-for in BNL-H join 
After MDEV-30830 has added block-nl-join.r_unpack_time_ms, it became
apparent that there is some unaccounted-for time in BNL join operation,
namely the time that is spent after unpacking the join buffer record.

Fix this by adding a Gap_time_tracker to track the time that is spent
after unpacking the join buffer record and before any next time tracking.
The collected time is printed in block-nl-join.r_other_time_ms.

Reviewed by: Monty <monty@mariadb.org>
2023-04-04 12:18:37 +03:00

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set @@join_buffer_size=256*1024;
set @save_optimizer_switch=@@optimizer_switch;
create table t1 (a int, b int);
create table t2 (c int, d int);
insert into t1 values (1,1),(2,2);
insert into t2 values (2,2),(3,3);
(select a,b from t1) intersect (select c,d from t2);
a b
2 2
drop tables t1,t2;
create table t1 (a int, b int) engine=MyISAM;
create table t2 (c int, d int) engine=MyISAM;
create table t3 (e int, f int) engine=MyISAM;
insert into t1 values (1,1),(2,2),(3,3);
insert into t2 values (2,2),(3,3),(4,4);
insert into t3 values (1,1),(2,2),(5,5);
(select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3);
a b
2 2
EXPLAIN (select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3
2 INTERSECT t2 ALL NULL NULL NULL NULL 3
3 INTERSECT t3 ALL NULL NULL NULL NULL 3
NULL INTERSECT RESULT <intersect1,2,3> ALL NULL NULL NULL NULL NULL
EXPLAIN extended (select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00
2 INTERSECT t2 ALL NULL NULL NULL NULL 3 100.00
3 INTERSECT t3 ALL NULL NULL NULL NULL 3 100.00
NULL INTERSECT RESULT <intersect1,2,3> ALL NULL NULL NULL NULL NULL NULL
Warnings:
Note 1003 (/* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1`) intersect (/* select#2 */ select `test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d` from `test`.`t2`) intersect (/* select#3 */ select `test`.`t3`.`e` AS `e`,`test`.`t3`.`f` AS `f` from `test`.`t3`)
EXPLAIN extended select * from ((select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3)) a;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 3 100.00
2 DERIVED t1 ALL NULL NULL NULL NULL 3 100.00
3 INTERSECT t2 ALL NULL NULL NULL NULL 3 100.00
4 INTERSECT t3 ALL NULL NULL NULL NULL 3 100.00
NULL INTERSECT RESULT <intersect2,3,4> ALL NULL NULL NULL NULL NULL NULL
Warnings:
Note 1003 /* select#1 */ select `a`.`a` AS `a`,`a`.`b` AS `b` from ((/* select#2 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1`) intersect (/* select#3 */ select `test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d` from `test`.`t2`) intersect (/* select#4 */ select `test`.`t3`.`e` AS `e`,`test`.`t3`.`f` AS `f` from `test`.`t3`)) `a`
EXPLAIN format=json (select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3);
EXPLAIN
{
"query_block": {
"union_result": {
"table_name": "<intersect1,2,3>",
"access_type": "ALL",
"query_specifications": [
{
"query_block": {
"select_id": 1,
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 3,
"filtered": 100
}
}
},
{
"query_block": {
"select_id": 2,
"operation": "INTERSECT",
"table": {
"table_name": "t2",
"access_type": "ALL",
"rows": 3,
"filtered": 100
}
}
},
{
"query_block": {
"select_id": 3,
"operation": "INTERSECT",
"table": {
"table_name": "t3",
"access_type": "ALL",
"rows": 3,
"filtered": 100
}
}
}
]
}
}
}
ANALYZE format=json (select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3);
ANALYZE
{
"query_block": {
"union_result": {
"table_name": "<intersect1,2,3>",
"access_type": "ALL",
"r_loops": 1,
"r_rows": 1,
"query_specifications": [
{
"query_block": {
"select_id": 1,
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"table": {
"table_name": "t1",
"access_type": "ALL",
"r_loops": 1,
"rows": 3,
"r_rows": 3,
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,
"r_filtered": 100
}
}
},
{
"query_block": {
"select_id": 2,
"operation": "INTERSECT",
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"table": {
"table_name": "t2",
"access_type": "ALL",
"r_loops": 1,
"rows": 3,
"r_rows": 3,
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,
"r_filtered": 100
}
}
},
{
"query_block": {
"select_id": 3,
"operation": "INTERSECT",
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"table": {
"table_name": "t3",
"access_type": "ALL",
"r_loops": 1,
"rows": 3,
"r_rows": 3,
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,
"r_filtered": 100
}
}
}
]
}
}
}
ANALYZE format=json select * from ((select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3)) a;
ANALYZE
{
"query_block": {
"select_id": 1,
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"table": {
"table_name": "<derived2>",
"access_type": "ALL",
"r_loops": 1,
"rows": 3,
"r_rows": 1,
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,
"r_filtered": 100,
"materialized": {
"query_block": {
"union_result": {
"table_name": "<intersect2,3,4>",
"access_type": "ALL",
"r_loops": 1,
"r_rows": 1,
"query_specifications": [
{
"query_block": {
"select_id": 2,
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"table": {
"table_name": "t1",
"access_type": "ALL",
"r_loops": 1,
"rows": 3,
"r_rows": 3,
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,
"r_filtered": 100
}
}
},
{
"query_block": {
"select_id": 3,
"operation": "INTERSECT",
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"table": {
"table_name": "t2",
"access_type": "ALL",
"r_loops": 1,
"rows": 3,
"r_rows": 3,
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,
"r_filtered": 100
}
}
},
{
"query_block": {
"select_id": 4,
"operation": "INTERSECT",
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"table": {
"table_name": "t3",
"access_type": "ALL",
"r_loops": 1,
"rows": 3,
"r_rows": 3,
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,
"r_filtered": 100
}
}
}
]
}
}
}
}
}
}
select * from ((select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3)) a;
a b
2 2
prepare stmt from "(select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3);";
execute stmt;
a b
2 2
execute stmt;
a b
2 2
prepare stmt from "select * from ((select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3)) a";
execute stmt;
a b
2 2
execute stmt;
a b
2 2
(select a,b from t1) intersect (select c,e from t2,t3);
a b
2 2
EXPLAIN (select a,b from t1) intersect (select c,e from t2,t3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3
2 INTERSECT t2 ALL NULL NULL NULL NULL 3
2 INTERSECT t3 ALL NULL NULL NULL NULL 3 Using join buffer (flat, BNL join)
NULL INTERSECT RESULT <intersect1,2> ALL NULL NULL NULL NULL NULL
EXPLAIN extended (select a,b from t1) intersect (select c,e from t2,t3);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00
2 INTERSECT t2 ALL NULL NULL NULL NULL 3 100.00
2 INTERSECT t3 ALL NULL NULL NULL NULL 3 100.00 Using join buffer (flat, BNL join)
NULL INTERSECT RESULT <intersect1,2> ALL NULL NULL NULL NULL NULL NULL
Warnings:
Note 1003 (/* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1`) intersect (/* select#2 */ select `test`.`t2`.`c` AS `c`,`test`.`t3`.`e` AS `e` from `test`.`t2` join `test`.`t3`)
EXPLAIN extended select * from ((select a,b from t1) intersect (select c,e from t2,t3)) a;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 3 100.00
2 DERIVED t1 ALL NULL NULL NULL NULL 3 100.00
3 INTERSECT t2 ALL NULL NULL NULL NULL 3 100.00
3 INTERSECT t3 ALL NULL NULL NULL NULL 3 100.00 Using join buffer (flat, BNL join)
NULL INTERSECT RESULT <intersect2,3> ALL NULL NULL NULL NULL NULL NULL
Warnings:
Note 1003 /* select#1 */ select `a`.`a` AS `a`,`a`.`b` AS `b` from ((/* select#2 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1`) intersect (/* select#3 */ select `test`.`t2`.`c` AS `c`,`test`.`t3`.`e` AS `e` from `test`.`t2` join `test`.`t3`)) `a`
set @@optimizer_switch='optimize_join_buffer_size=off';
EXPLAIN format=json (select a,b from t1) intersect (select c,e from t2,t3);
EXPLAIN
{
"query_block": {
"union_result": {
"table_name": "<intersect1,2>",
"access_type": "ALL",
"query_specifications": [
{
"query_block": {
"select_id": 1,
"table": {
"table_name": "t1",
"access_type": "ALL",
"rows": 3,
"filtered": 100
}
}
},
{
"query_block": {
"select_id": 2,
"operation": "INTERSECT",
"table": {
"table_name": "t2",
"access_type": "ALL",
"rows": 3,
"filtered": 100
},
"block-nl-join": {
"table": {
"table_name": "t3",
"access_type": "ALL",
"rows": 3,
"filtered": 100
},
"buffer_type": "flat",
"buffer_size": "256Kb",
"join_type": "BNL"
}
}
}
]
}
}
}
ANALYZE format=json (select a,b from t1) intersect (select c,e from t2,t3);
ANALYZE
{
"query_block": {
"union_result": {
"table_name": "<intersect1,2>",
"access_type": "ALL",
"r_loops": 1,
"r_rows": 1,
"query_specifications": [
{
"query_block": {
"select_id": 1,
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"table": {
"table_name": "t1",
"access_type": "ALL",
"r_loops": 1,
"rows": 3,
"r_rows": 3,
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,
"r_filtered": 100
}
}
},
{
"query_block": {
"select_id": 2,
"operation": "INTERSECT",
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"table": {
"table_name": "t2",
"access_type": "ALL",
"r_loops": 1,
"rows": 3,
"r_rows": 3,
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,
"r_filtered": 100
},
"block-nl-join": {
"table": {
"table_name": "t3",
"access_type": "ALL",
"r_loops": 1,
"rows": 3,
"r_rows": 3,
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,
"r_filtered": 100
},
"buffer_type": "flat",
"buffer_size": "256Kb",
"join_type": "BNL",
"r_loops": 3,
"r_filtered": 100,
"r_unpack_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"r_effective_rows": 3
}
}
}
]
}
}
}
ANALYZE format=json select * from ((select a,b from t1) intersect (select c,e from t2,t3)) a;
ANALYZE
{
"query_block": {
"select_id": 1,
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"table": {
"table_name": "<derived2>",
"access_type": "ALL",
"r_loops": 1,
"rows": 3,
"r_rows": 1,
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,
"r_filtered": 100,
"materialized": {
"query_block": {
"union_result": {
"table_name": "<intersect2,3>",
"access_type": "ALL",
"r_loops": 1,
"r_rows": 1,
"query_specifications": [
{
"query_block": {
"select_id": 2,
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"table": {
"table_name": "t1",
"access_type": "ALL",
"r_loops": 1,
"rows": 3,
"r_rows": 3,
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,
"r_filtered": 100
}
}
},
{
"query_block": {
"select_id": 3,
"operation": "INTERSECT",
"r_loops": 1,
"r_total_time_ms": "REPLACED",
"table": {
"table_name": "t2",
"access_type": "ALL",
"r_loops": 1,
"rows": 3,
"r_rows": 3,
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,
"r_filtered": 100
},
"block-nl-join": {
"table": {
"table_name": "t3",
"access_type": "ALL",
"r_loops": 1,
"rows": 3,
"r_rows": 3,
"r_table_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"filtered": 100,
"r_filtered": 100
},
"buffer_type": "flat",
"buffer_size": "256Kb",
"join_type": "BNL",
"r_loops": 3,
"r_filtered": 100,
"r_unpack_time_ms": "REPLACED",
"r_other_time_ms": "REPLACED",
"r_effective_rows": 3
}
}
}
]
}
}
}
}
}
}
set @@optimizer_switch=@save_optimizer_switch;
select * from ((select a,b from t1) intersect (select c,e from t2,t3)) a;
a b
2 2
prepare stmt from "(select a,b from t1) intersect (select c,e from t2,t3);";
execute stmt;
a b
2 2
execute stmt;
a b
2 2
prepare stmt from "select * from ((select a,b from t1) intersect (select c,e from t2,t3)) a";
execute stmt;
a b
2 2
execute stmt;
a b
2 2
drop tables t1,t2,t3;
select 1 as a from dual intersect select 1 from dual;
a
1
(select 1 from dual) intersect (select 1 from dual);
1
1
(select 1 from dual into @v) intersect (select 1 from dual);
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'into @v) intersect (select 1 from dual)' at line 1
select 1 from dual ORDER BY 1 intersect select 1 from dual;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'intersect select 1 from dual' at line 1
select 1 as a from dual union all select 1 from dual;
a
1
1
create table t1 (a int, b blob, a1 int, b1 blob);
create table t2 (c int, d blob, c1 int, d1 blob);
insert into t1 values (1,"ddd", 1, "sdfrrwwww"),(2, "fgh", 2, "dffggtt");
insert into t2 values (2, "fgh", 2, "dffggtt"),(3, "ffggddd", 3, "dfgg");
(select a,b,b1 from t1) intersect (select c,d,d1 from t2);
a b b1
2 fgh dffggtt
drop tables t1,t2;
create table t1 (a int, b blob) engine=MyISAM;
create table t2 (c int, d blob) engine=MyISAM;
create table t3 (e int, f blob) engine=MyISAM;
insert into t1 values (1,1),(2,2),(3,3);
insert into t2 values (2,2),(3,3),(4,4);
insert into t3 values (1,1),(2,2),(5,5);
(select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3);
a b
2 2
select * from ((select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3)) a;
a b
2 2
prepare stmt from "(select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3);";
execute stmt;
a b
2 2
execute stmt;
a b
2 2
prepare stmt from "select * from ((select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3)) a";
execute stmt;
a b
2 2
execute stmt;
a b
2 2
create table t4 (select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3);
show create table t4;
Table Create Table
t4 CREATE TABLE `t4` (
`a` int(11) DEFAULT NULL,
`b` blob DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
drop tables t1,t2,t3,t4;
create table t1 (a int, b blob) engine=MyISAM;
create table t2 (c int, d blob) engine=MyISAM;
create table t3 (e int, f blob) engine=MyISAM;
insert into t1 values (1,1),(2,2),(3,3);
insert into t2 values (2,2),(3,3);
insert into t3 values (1,1),(2,2),(3,3);
(select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3) union (select 4,4);
a b
2 2
3 3
4 4
(select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3) union (select 4,4) except (select 2,2);
a b
3 3
4 4
drop tables t1,t2,t3;
create table t1 (a int, b int);
create table t2 (c int, d int);
create table t3 (e int, f int);
insert into t1 values (1,1),(2,2),(3,3);
insert into t2 values (2,2),(3,3);
insert into t3 values (1,1),(2,2),(3,3);
(select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3) union (select 4,4);
a b
2 2
3 3
4 4
(select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3) union (select 4,4) except (select 2,2);
a b
3 3
4 4
drop tables t1,t2,t3;
#
# INTERSECT precedence
#
create table t1 (a int, b blob) engine=MyISAM;
create table t2 (c int, d blob) engine=MyISAM;
create table t3 (e int, f blob) engine=MyISAM;
insert into t1 values (5,5),(6,6);
insert into t2 values (2,2),(3,3);
insert into t3 values (1,1),(3,3);
(select a,b from t1) union (select c,d from t2) intersect (select e,f from t3) union (select 4,4);
a b
3 3
4 4
5 5
6 6
explain extended
(select a,b from t1) union (select c,d from t2) intersect (select e,f from t3) union (select 4,4);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00
5 UNION <derived2> ALL NULL NULL NULL NULL 2 100.00
2 DERIVED t2 ALL NULL NULL NULL NULL 2 100.00
3 INTERSECT t3 ALL NULL NULL NULL NULL 2 100.00
NULL INTERSECT RESULT <intersect2,3> ALL NULL NULL NULL NULL NULL NULL
4 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used
NULL UNION RESULT <union1,5,4> ALL NULL NULL NULL NULL NULL NULL
Warnings:
Note 1003 (/* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1`) union /* select#5 */ select `__5`.`c` AS `c`,`__5`.`d` AS `d` from ((/* select#2 */ select `test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d` from `test`.`t2`) intersect (/* select#3 */ select `test`.`t3`.`e` AS `e`,`test`.`t3`.`f` AS `f` from `test`.`t3`)) `__5` union (/* select#4 */ select 4 AS `4`,4 AS `4`)
(select e,f from t3) intersect (select c,d from t2) union (select a,b from t1) union (select 4,4);
e f
3 3
4 4
5 5
6 6
explain extended
(select e,f from t3) intersect (select c,d from t2) union (select a,b from t1) union (select 4,4);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 2 100.00
2 INTERSECT t2 ALL NULL NULL NULL NULL 2 100.00
3 UNION t1 ALL NULL NULL NULL NULL 2 100.00
4 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used
NULL UNIT RESULT <unit1,2,3,4> ALL NULL NULL NULL NULL NULL NULL
Warnings:
Note 1003 (/* select#1 */ select `test`.`t3`.`e` AS `e`,`test`.`t3`.`f` AS `f` from `test`.`t3`) intersect (/* select#2 */ select `test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d` from `test`.`t2`) union (/* select#3 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1`) union (/* select#4 */ select 4 AS `4`,4 AS `4`)
(/* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1`) union /* select#3 */ select `__3`.`c` AS `c`,`__3`.`d` AS `d` from ((/* select#2 */ select `test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d` from `test`.`t2`) intersect (/* select#4 */ select `test`.`t3`.`e` AS `e`,`test`.`t3`.`f` AS `f` from `test`.`t3`)) `__3` union (/* select#5 */ select 4 AS `4`,4 AS `4`);
a b
3 3
4 4
5 5
6 6
prepare stmt from "(select a,b from t1) union (select c,d from t2) intersect (select e,f from t3) union (select 4,4)";
execute stmt;
a b
5 5
6 6
3 3
4 4
execute stmt;
a b
5 5
6 6
3 3
4 4
create view v1 as (select a,b from t1) union (select c,d from t2) intersect (select e,f from t3) union (select 4,4);
select b,a,b+1 from v1;
b a b+1
3 3 4
4 4 5
5 5 6
6 6 7
select b,a,b+1 from v1 where a > 3;
b a b+1
4 4 5
5 5 6
6 6 7
create procedure p1()
select * from v1;
call p1();
a b
3 3
4 4
5 5
6 6
call p1();
a b
3 3
4 4
5 5
6 6
drop procedure p1;
create procedure p1()
(select a,b from t1) union (select c,d from t2) intersect (select e,f from t3) union (select 4,4);
call p1();
a b
3 3
4 4
5 5
6 6
call p1();
a b
3 3
4 4
5 5
6 6
drop procedure p1;
show create view v1;
View Create View character_set_client collation_connection
v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS (select `t1`.`a` AS `a`,`t1`.`b` AS `b` from `t1`) union select `__6`.`c` AS `c`,`__6`.`d` AS `d` from ((select `t2`.`c` AS `c`,`t2`.`d` AS `d` from `t2`) intersect (select `t3`.`e` AS `e`,`t3`.`f` AS `f` from `t3`)) `__6` union (select 4 AS `4`,4 AS `4`) latin1 latin1_swedish_ci
drop view v1;
drop tables t1,t2,t3;
#
# MDEV-14346:incorrect result of intersect with ANY/ALL/IN subquery
#
CREATE TABLE t (i INT);
INSERT INTO t VALUES (1),(2);
SELECT * FROM t WHERE i != ANY ( SELECT 6 INTERSECT SELECT 3 );
i
select i from t where
exists ((select 6 as r from dual having t.i <> 6)
intersect
(select 3 from dual having t.i <> 3));
i
drop table t;
#
# MDEV-13749: Server crashes in _ma_unique_hash /
# JOIN_CACHE::generate_full_extensions on INTERSECT
#
CREATE TABLE t1 (a varchar(32)) ENGINE=MyISAM;
INSERT INTO t1 VALUES
('Jakarta'),('Lisbon'),('Honolulu'),('Lusaka'),('Barcelona'),('Taipei'),
('Brussels'),('Orlando'),('Osaka'),('Quito'),('Lima'),('Tunis'),
('Unalaska'),('Rotterdam'),('Zagreb'),('Ufa'),('Ryazan'),('Xiamen'),
('London'),('Izmir'),('Samara'),('Bern'),('Zhengzhou'),('Vladivostok'),
('Yangon'),('Victoria'),('Warsaw'),('Luanda'),('Leon'),('Bangkok'),
('Wellington'),('Zibo'),('Qiqihar'),('Delhi'),('Hamburg'),('Ottawa'),
('Vaduz');
CREATE TABLE t2 (b varchar(32)) ENGINE=MyISAM;
INSERT INTO t2 VALUES
('Gaza'),('Jeddah'),('Beirut'),('Incheon'),('Tbilisi'),('Izmir'),
('Quito'),('Riga'),('Freetown'),('Zagreb'),('Caracas'),('Orlando'),
('Kingston'),('Turin'),('Xinyang'),('Osaka'),('Albany'),('Geneva'),
('Omsk'),('Kazan'),('Quezon'),('Indore'),('Odessa'),('Xiamen'),
('Winnipeg'),('Yakutsk'),('Nairobi'),('Ufa'),('Helsinki'),('Vilnius'),
('Aden'),('Liverpool'),('Honolulu'),('Frankfurt'),('Glasgow'),
('Vienna'),('Jackson'),('Jakarta'),('Sydney'),('Oslo'),('Novgorod'),
('Norilsk'),('Izhevsk'),('Istanbul'),('Nice');
CREATE TABLE t3 (c varchar(32)) ENGINE=MyISAM;
INSERT INTO t3 VALUES
('Nicosia'),('Istanbul'),('Richmond'),('Stockholm'),('Dublin'),
('Wichita'),('Warsaw'),('Glasgow'),('Winnipeg'),('Irkutsk'),('Quito'),
('Xiamen'),('Berlin'),('Rome'),('Denver'),('Dallas'),('Kabul'),
('Prague'),('Izhevsk'),('Tirana'),('Sofia'),('Detroit'),('Sorbonne');
select count(*) from (
SELECT * FROM t1 LEFT OUTER JOIN t2 LEFT OUTER JOIN t3 ON b < c ON a > b
INTERSECT
SELECT * FROM t1 LEFT OUTER JOIN t2 LEFT OUTER JOIN t3 ON b < c ON a > b
) a;
count(*)
14848
drop table t1,t2,t3;
CREATE TABLE t1 (a varchar(32) not null) ENGINE=MyISAM;
INSERT INTO t1 VALUES
('Jakarta'),('Lisbon'),('Honolulu'),('Lusaka'),('Barcelona'),('Taipei'),
('Brussels'),('Orlando'),('Osaka'),('Quito'),('Lima'),('Tunis'),
('Unalaska'),('Rotterdam'),('Zagreb'),('Ufa'),('Ryazan'),('Xiamen'),
('London'),('Izmir'),('Samara'),('Bern'),('Zhengzhou'),('Vladivostok'),
('Yangon'),('Victoria'),('Warsaw'),('Luanda'),('Leon'),('Bangkok'),
('Wellington'),('Zibo'),('Qiqihar'),('Delhi'),('Hamburg'),('Ottawa'),
('Vaduz');
CREATE TABLE t2 (b varchar(32) not null) ENGINE=MyISAM;
INSERT INTO t2 VALUES
('Gaza'),('Jeddah'),('Beirut'),('Incheon'),('Tbilisi'),('Izmir'),
('Quito'),('Riga'),('Freetown'),('Zagreb'),('Caracas'),('Orlando'),
('Kingston'),('Turin'),('Xinyang'),('Osaka'),('Albany'),('Geneva'),
('Omsk'),('Kazan'),('Quezon'),('Indore'),('Odessa'),('Xiamen'),
('Winnipeg'),('Yakutsk'),('Nairobi'),('Ufa'),('Helsinki'),('Vilnius'),
('Aden'),('Liverpool'),('Honolulu'),('Frankfurt'),('Glasgow'),
('Vienna'),('Jackson'),('Jakarta'),('Sydney'),('Oslo'),('Novgorod'),
('Norilsk'),('Izhevsk'),('Istanbul'),('Nice');
CREATE TABLE t3 (c varchar(32) not null) ENGINE=MyISAM;
INSERT INTO t3 VALUES
('Nicosia'),('Istanbul'),('Richmond'),('Stockholm'),('Dublin'),
('Wichita'),('Warsaw'),('Glasgow'),('Winnipeg'),('Irkutsk'),('Quito'),
('Xiamen'),('Berlin'),('Rome'),('Denver'),('Dallas'),('Kabul'),
('Prague'),('Izhevsk'),('Tirana'),('Sofia'),('Detroit'),('Sorbonne');
select count(*) from (
SELECT * FROM t1 LEFT OUTER JOIN t2 LEFT OUTER JOIN t3 ON b < c ON a > b
INTERSECT
SELECT * FROM t1 LEFT OUTER JOIN t2 LEFT OUTER JOIN t3 ON b < c ON a > b
) a;
count(*)
14848
drop table t1,t2,t3;
#
# MDEV-13695: INTERSECT precedence is not in line with Oracle even
# in SQL_MODE=Oracle
#
create table t12(c1 int);
insert into t12 values(1);
insert into t12 values(2);
create table t13(c1 int);
insert into t13 values(1);
insert into t13 values(3);
create table t234(c1 int);
insert into t234 values(2);
insert into t234 values(3);
insert into t234 values(4);
select * from t13 union select * from t234 intersect select * from t12;
c1
1
2
3
drop table t12,t13,t234;
# End of 10.3 tests
#
# MDEV-18701: Wrong result from query that uses INTERSECT after UNION ALL
#
create table t1 (a int);
insert into t1 values (3), (1), (7), (3), (2), (7), (4);
create table t2 (a int);
insert into t2 values (4), (5), (9), (1), (8), (9);
create table t3 (a int);
insert into t3 values (8), (1), (8), (2), (3), (7), (2);
select * from t1 where a > 4
union all
select * from t2 where a < 5
intersect
select * from t3 where a < 5;
a
1
7
7
explain extended
select * from t1 where a > 4
union all
select * from t2 where a < 5
intersect
select * from t3 where a < 5;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 7 100.00 Using where
4 UNION <derived2> ALL NULL NULL NULL NULL 6 100.00
2 DERIVED t2 ALL NULL NULL NULL NULL 6 100.00 Using where
3 INTERSECT t3 ALL NULL NULL NULL NULL 7 100.00 Using where
NULL INTERSECT RESULT <intersect2,3> ALL NULL NULL NULL NULL NULL NULL
Warnings:
Note 1003 /* select#1 */ select `test`.`t1`.`a` AS `a` from `test`.`t1` where `test`.`t1`.`a` > 4 union all /* select#4 */ select `__4`.`a` AS `a` from (/* select#2 */ select `test`.`t2`.`a` AS `a` from `test`.`t2` where `test`.`t2`.`a` < 5 intersect /* select#3 */ select `test`.`t3`.`a` AS `a` from `test`.`t3` where `test`.`t3`.`a` < 5) `__4`
drop table t1,t2,t3;
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