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 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 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 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 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": "", "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": "", "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_total_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_total_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_total_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": "", "access_type": "ALL", "r_loops": 1, "rows": 3, "r_rows": 1, "r_total_time_ms": "REPLACED", "filtered": 100, "r_filtered": 100, "materialized": { "query_block": { "union_result": { "table_name": "", "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_total_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_total_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_total_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 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 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 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 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` EXPLAIN format=json (select a,b from t1) intersect (select c,e from t2,t3); EXPLAIN { "query_block": { "union_result": { "table_name": "", "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": "", "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_total_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_total_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_total_time_ms": "REPLACED", "filtered": 100, "r_filtered": 100 }, "buffer_type": "flat", "buffer_size": "256Kb", "join_type": "BNL", "r_filtered": 100 } } } ] } } } 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": "", "access_type": "ALL", "r_loops": 1, "rows": 3, "r_rows": 1, "r_total_time_ms": "REPLACED", "filtered": 100, "r_filtered": 100, "materialized": { "query_block": { "union_result": { "table_name": "", "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_total_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_total_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_total_time_ms": "REPLACED", "filtered": 100, "r_filtered": 100 }, "buffer_type": "flat", "buffer_size": "256Kb", "join_type": "BNL", "r_filtered": 100 } } } ] } } } } } } 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 HY000: Incorrect usage of INTERSECT and INTO 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 select 1 from dual intersect all select 1 from dual; ERROR HY000: Incorrect usage of INTERSECT and ALL 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 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 3 UNION ALL NULL NULL NULL NULL 2 100.00 2 DERIVED t2 ALL NULL NULL NULL NULL 2 100.00 4 INTERSECT t3 ALL NULL NULL NULL NULL 2 100.00 NULL INTERSECT RESULT ALL NULL NULL NULL NULL NULL NULL 5 UNION NULL NULL NULL NULL NULL NULL NULL NULL No tables used NULL UNION RESULT 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#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`) (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 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 `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1`) union select `__3`.`c` AS `c`,`__3`.`d` AS `d` from ((select `test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d` from `test`.`t2`) intersect (select `test`.`t3`.`e` AS `e`,`test`.`t3`.`f` AS `f` from `test`.`t3`)) `__3` union (select 4 AS `4`,4 AS `4`) latin1 latin1_swedish_ci drop view v1; drop tables t1,t2,t3; # End of 10.3 tests