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623ed1c204
With INTERSECT/EXCEPT fact that subquery item of IN/ALL/ANY was not assigned value does not mean that temporary table used for calculating unit is empty (records could be deleted).
194 lines
7.3 KiB
Plaintext
194 lines
7.3 KiB
Plaintext
create table t1 (a int, b int);
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create table t2 (c int, d int);
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insert into t1 values (1,1),(2,2);
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insert into t2 values (2,2),(3,3);
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(select a,b from t1) intersect (select c,d from t2);
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drop tables t1,t2;
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create table t1 (a int, b int) engine=MyISAM;
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create table t2 (c int, d int) engine=MyISAM;
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create table t3 (e int, f int) engine=MyISAM;
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insert into t1 values (1,1),(2,2),(3,3);
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insert into t2 values (2,2),(3,3),(4,4);
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insert into t3 values (1,1),(2,2),(5,5);
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(select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3);
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EXPLAIN (select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3);
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EXPLAIN extended (select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3);
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EXPLAIN extended select * from ((select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3)) a;
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EXPLAIN format=json (select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3);
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--replace_regex /"r_total_time_ms": [0-9e\.\-+]*,/"r_total_time_ms": "REPLACED",/
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ANALYZE format=json (select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3);
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--replace_regex /"r_total_time_ms": [0-9e\.\-+]*,/"r_total_time_ms": "REPLACED",/
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ANALYZE format=json select * from ((select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3)) a;
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select * from ((select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3)) a;
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prepare stmt from "(select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3);";
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execute stmt;
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execute stmt;
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prepare stmt from "select * from ((select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3)) a";
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execute stmt;
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execute stmt;
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(select a,b from t1) intersect (select c,e from t2,t3);
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EXPLAIN (select a,b from t1) intersect (select c,e from t2,t3);
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EXPLAIN extended (select a,b from t1) intersect (select c,e from t2,t3);
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EXPLAIN extended select * from ((select a,b from t1) intersect (select c,e from t2,t3)) a;
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EXPLAIN format=json (select a,b from t1) intersect (select c,e from t2,t3);
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--replace_regex /"r_total_time_ms": [0-9e\.\-+]*,/"r_total_time_ms": "REPLACED",/
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ANALYZE format=json (select a,b from t1) intersect (select c,e from t2,t3);
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--replace_regex /"r_total_time_ms": [0-9e\.\-+]*,/"r_total_time_ms": "REPLACED",/
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ANALYZE format=json select * from ((select a,b from t1) intersect (select c,e from t2,t3)) a;
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select * from ((select a,b from t1) intersect (select c,e from t2,t3)) a;
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prepare stmt from "(select a,b from t1) intersect (select c,e from t2,t3);";
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execute stmt;
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execute stmt;
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prepare stmt from "select * from ((select a,b from t1) intersect (select c,e from t2,t3)) a";
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execute stmt;
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execute stmt;
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drop tables t1,t2,t3;
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select 1 as a from dual intersect select 1 from dual;
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(select 1 from dual) intersect (select 1 from dual);
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--error ER_WRONG_USAGE
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(select 1 from dual into @v) intersect (select 1 from dual);
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--error ER_PARSE_ERROR
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select 1 from dual ORDER BY 1 intersect select 1 from dual;
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select 1 as a from dual union all select 1 from dual;
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--error ER_WRONG_USAGE
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select 1 from dual intersect all select 1 from dual;
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create table t1 (a int, b blob, a1 int, b1 blob);
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create table t2 (c int, d blob, c1 int, d1 blob);
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insert into t1 values (1,"ddd", 1, "sdfrrwwww"),(2, "fgh", 2, "dffggtt");
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insert into t2 values (2, "fgh", 2, "dffggtt"),(3, "ffggddd", 3, "dfgg");
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(select a,b,b1 from t1) intersect (select c,d,d1 from t2);
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drop tables t1,t2;
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create table t1 (a int, b blob) engine=MyISAM;
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create table t2 (c int, d blob) engine=MyISAM;
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create table t3 (e int, f blob) engine=MyISAM;
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insert into t1 values (1,1),(2,2),(3,3);
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insert into t2 values (2,2),(3,3),(4,4);
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insert into t3 values (1,1),(2,2),(5,5);
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(select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3);
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select * from ((select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3)) a;
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prepare stmt from "(select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3);";
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execute stmt;
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execute stmt;
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prepare stmt from "select * from ((select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3)) a";
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execute stmt;
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execute stmt;
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# make sure that blob is used
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create table t4 (select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3);
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show create table t4;
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drop tables t1,t2,t3,t4;
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create table t1 (a int, b blob) engine=MyISAM;
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create table t2 (c int, d blob) engine=MyISAM;
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create table t3 (e int, f blob) engine=MyISAM;
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insert into t1 values (1,1),(2,2),(3,3);
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insert into t2 values (2,2),(3,3);
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insert into t3 values (1,1),(2,2),(3,3);
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--sorted_result
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(select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3) union (select 4,4);
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--sorted_result
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(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);
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drop tables t1,t2,t3;
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create table t1 (a int, b int);
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create table t2 (c int, d int);
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create table t3 (e int, f int);
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insert into t1 values (1,1),(2,2),(3,3);
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insert into t2 values (2,2),(3,3);
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insert into t3 values (1,1),(2,2),(3,3);
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--sorted_result
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(select a,b from t1) intersect (select c,d from t2) intersect (select e,f from t3) union (select 4,4);
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--sorted_result
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(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);
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drop tables t1,t2,t3;
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--echo #
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--echo # INTERSECT precedence
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--echo #
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create table t1 (a int, b blob) engine=MyISAM;
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create table t2 (c int, d blob) engine=MyISAM;
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create table t3 (e int, f blob) engine=MyISAM;
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insert into t1 values (5,5),(6,6);
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insert into t2 values (2,2),(3,3);
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insert into t3 values (1,1),(3,3);
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--sorted_result
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(select a,b from t1) union (select c,d from t2) intersect (select e,f from t3) union (select 4,4);
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explain extended
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(select a,b from t1) union (select c,d from t2) intersect (select e,f from t3) union (select 4,4);
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# test result of linear mix operation
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--sorted_result
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(select e,f from t3) intersect (select c,d from t2) union (select a,b from t1) union (select 4,4);
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explain extended
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(select e,f from t3) intersect (select c,d from t2) union (select a,b from t1) union (select 4,4);
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--sorted_result
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(/* 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`);
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--sorted_result
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prepare stmt from "(select a,b from t1) union (select c,d from t2) intersect (select e,f from t3) union (select 4,4)";
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execute stmt;
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execute stmt;
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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);
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--sorted_result
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select b,a,b+1 from v1;
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--sorted_result
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select b,a,b+1 from v1 where a > 3;
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create procedure p1()
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select * from v1;
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--sorted_result
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call p1();
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--sorted_result
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call p1();
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drop procedure p1;
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create procedure p1()
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(select a,b from t1) union (select c,d from t2) intersect (select e,f from t3) union (select 4,4);
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--sorted_result
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call p1();
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--sorted_result
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call p1();
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drop procedure p1;
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show create view v1;
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drop view v1;
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drop tables t1,t2,t3;
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--echo # End of 10.3 tests
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