mirror of
https://github.com/MariaDB/server.git
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1008 lines
34 KiB
Text
1008 lines
34 KiB
Text
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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insert into t1 values (1,1),(2,2),(3,3),(2,2);
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insert into t2 values (2,2),(2,2),(5,5);
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select * from t1 intersect all select * from t2;
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a b
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2 2
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2 2
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(select a,b from t1) intersect all (select c,d from t2);
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a b
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2 2
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2 2
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select * from ((select a,b from t1) intersect all (select c,d from t2)) t;
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a b
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2 2
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2 2
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select * from ((select a from t1) intersect all (select c from t2)) t;
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a
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2
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2
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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),(2,2);
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insert into t2 values (2,2),(3,3),(4,4),(2,2);
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insert into t3 values (1,1),(2,2),(5,5),(2,2);
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(select a,b from t1) intersect all (select c,d from t2) intersect all (select e,f from t3);
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a b
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2 2
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2 2
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EXPLAIN (select a,b from t1) intersect all (select c,d from t2) intersect all (select e,f from t3);
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY t1 ALL NULL NULL NULL NULL 4
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2 INTERSECT t2 ALL NULL NULL NULL NULL 4
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3 INTERSECT t3 ALL NULL NULL NULL NULL 4
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NULL INTERSECT RESULT <intersect1,2,3> ALL NULL NULL NULL NULL NULL
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EXPLAIN extended (select a,b from t1) intersect all (select c,d from t2) intersect all (select e,f from t3);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY t1 ALL NULL NULL NULL NULL 4 100.00
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2 INTERSECT t2 ALL NULL NULL NULL NULL 4 100.00
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3 INTERSECT t3 ALL NULL NULL NULL NULL 4 100.00
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NULL INTERSECT RESULT <intersect1,2,3> ALL NULL NULL NULL NULL NULL NULL
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Warnings:
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Note 1003 (/* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1`) intersect all (/* select#2 */ select `test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d` from `test`.`t2`) intersect all (/* select#3 */ select `test`.`t3`.`e` AS `e`,`test`.`t3`.`f` AS `f` from `test`.`t3`)
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EXPLAIN extended select * from ((select a,b from t1) intersect all (select c,d from t2) intersect all (select e,f from t3)) a;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY <derived2> ALL NULL NULL NULL NULL 4 100.00
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2 DERIVED t1 ALL NULL NULL NULL NULL 4 100.00
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3 INTERSECT t2 ALL NULL NULL NULL NULL 4 100.00
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4 INTERSECT t3 ALL NULL NULL NULL NULL 4 100.00
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NULL INTERSECT RESULT <intersect2,3,4> ALL NULL NULL NULL NULL NULL NULL
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Warnings:
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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 all (/* select#3 */ select `test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d` from `test`.`t2`) intersect all (/* select#4 */ select `test`.`t3`.`e` AS `e`,`test`.`t3`.`f` AS `f` from `test`.`t3`)) `a`
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EXPLAIN format=json (select a,b from t1) intersect all (select c,d from t2) intersect all (select e,f from t3);
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EXPLAIN
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{
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"query_block": {
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"union_result": {
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"table_name": "<intersect1,2,3>",
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"access_type": "ALL",
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"query_specifications": [
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{
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"query_block": {
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"select_id": 1,
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"nested_loop": [
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{
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"table": {
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"table_name": "t1",
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"access_type": "ALL",
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"rows": 4,
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"filtered": 100
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}
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}
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]
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}
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},
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{
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"query_block": {
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"select_id": 2,
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"operation": "INTERSECT",
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"nested_loop": [
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{
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"table": {
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"table_name": "t2",
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"access_type": "ALL",
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"rows": 4,
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"filtered": 100
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}
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}
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]
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}
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},
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{
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"query_block": {
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"select_id": 3,
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"operation": "INTERSECT",
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"nested_loop": [
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{
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"table": {
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"table_name": "t3",
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"access_type": "ALL",
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"rows": 4,
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"filtered": 100
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}
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}
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]
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}
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}
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]
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}
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}
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}
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ANALYZE format=json (select a,b from t1) intersect all (select c,d from t2) intersect all (select e,f from t3);
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ANALYZE
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{
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"query_optimization": {
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"r_total_time_ms": "REPLACED"
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},
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"query_block": {
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"union_result": {
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"table_name": "<intersect1,2,3>",
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"access_type": "ALL",
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"r_loops": 1,
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"r_rows": 2,
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"query_specifications": [
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{
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"query_block": {
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"select_id": 1,
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"r_loops": 1,
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"r_total_time_ms": "REPLACED",
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"nested_loop": [
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{
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"table": {
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"table_name": "t1",
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"access_type": "ALL",
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"r_loops": 1,
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"rows": 4,
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"r_rows": 4,
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"r_table_time_ms": "REPLACED",
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"r_other_time_ms": "REPLACED",
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"r_engine_stats": REPLACED,
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"filtered": 100,
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"r_filtered": 100
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}
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}
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]
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}
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},
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{
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"query_block": {
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"select_id": 2,
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"operation": "INTERSECT",
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"r_loops": 1,
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"r_total_time_ms": "REPLACED",
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"nested_loop": [
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{
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"table": {
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"table_name": "t2",
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"access_type": "ALL",
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"r_loops": 1,
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"rows": 4,
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"r_rows": 4,
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"r_table_time_ms": "REPLACED",
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"r_other_time_ms": "REPLACED",
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"r_engine_stats": REPLACED,
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"filtered": 100,
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"r_filtered": 100
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}
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}
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]
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}
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},
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{
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"query_block": {
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"select_id": 3,
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"operation": "INTERSECT",
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"r_loops": 1,
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"r_total_time_ms": "REPLACED",
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"nested_loop": [
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{
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"table": {
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"table_name": "t3",
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"access_type": "ALL",
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"r_loops": 1,
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"rows": 4,
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"r_rows": 4,
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"r_table_time_ms": "REPLACED",
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"r_other_time_ms": "REPLACED",
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"r_engine_stats": REPLACED,
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"filtered": 100,
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"r_filtered": 100
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}
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}
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]
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}
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}
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]
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}
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}
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}
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ANALYZE format=json select * from ((select a,b from t1) intersect all (select c,d from t2) intersect all (select e,f from t3)) a;
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ANALYZE
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{
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"query_optimization": {
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"r_total_time_ms": "REPLACED"
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},
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"query_block": {
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"select_id": 1,
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"r_loops": 1,
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"r_total_time_ms": "REPLACED",
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"nested_loop": [
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{
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"table": {
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"table_name": "<derived2>",
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"access_type": "ALL",
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"r_loops": 1,
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"rows": 4,
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"r_rows": 2,
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"r_table_time_ms": "REPLACED",
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"r_other_time_ms": "REPLACED",
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"filtered": 100,
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"r_filtered": 100,
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"materialized": {
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"query_block": {
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"union_result": {
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"table_name": "<intersect2,3,4>",
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"access_type": "ALL",
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"r_loops": 1,
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"r_rows": 2,
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"query_specifications": [
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{
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"query_block": {
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"select_id": 2,
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"r_loops": 1,
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"r_total_time_ms": "REPLACED",
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"nested_loop": [
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{
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"table": {
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"table_name": "t1",
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"access_type": "ALL",
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"r_loops": 1,
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"rows": 4,
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"r_rows": 4,
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"r_table_time_ms": "REPLACED",
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"r_other_time_ms": "REPLACED",
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"r_engine_stats": REPLACED,
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"filtered": 100,
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"r_filtered": 100
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}
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}
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]
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}
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},
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{
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"query_block": {
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"select_id": 3,
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"operation": "INTERSECT",
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"r_loops": 1,
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"r_total_time_ms": "REPLACED",
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"nested_loop": [
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{
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"table": {
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"table_name": "t2",
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"access_type": "ALL",
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"r_loops": 1,
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"rows": 4,
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"r_rows": 4,
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"r_table_time_ms": "REPLACED",
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"r_other_time_ms": "REPLACED",
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"r_engine_stats": REPLACED,
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"filtered": 100,
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"r_filtered": 100
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}
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}
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]
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}
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},
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{
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"query_block": {
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"select_id": 4,
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"operation": "INTERSECT",
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"r_loops": 1,
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"r_total_time_ms": "REPLACED",
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"nested_loop": [
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{
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"table": {
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"table_name": "t3",
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"access_type": "ALL",
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"r_loops": 1,
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"rows": 4,
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"r_rows": 4,
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"r_table_time_ms": "REPLACED",
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"r_other_time_ms": "REPLACED",
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"r_engine_stats": REPLACED,
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"filtered": 100,
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"r_filtered": 100
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}
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}
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]
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}
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}
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]
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}
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}
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}
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}
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}
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]
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}
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}
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select * from ((select a,b from t1) intersect all (select c,d from t2) intersect all (select e,f from t3)) a;
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a b
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2 2
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2 2
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prepare stmt from "(select a,b from t1) intersect all (select c,d from t2) intersect all (select e,f from t3);";
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execute stmt;
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a b
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2 2
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2 2
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execute stmt;
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a b
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2 2
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2 2
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prepare stmt from "select * from ((select a,b from t1) intersect all (select c,d from t2) intersect all (select e,f from t3)) a";
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execute stmt;
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a b
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2 2
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2 2
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execute stmt;
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a b
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2 2
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2 2
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insert into t1 values (2,2),(3,3);
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insert into t2 values (2,2),(2,2),(2,2);
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(select a,b from t1) intersect all (select c,d from t2) intersect all (select e,f from t3);
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a b
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2 2
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2 2
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(select a,b from t1) intersect (select c,d from t2) intersect all (select e,f from t3);
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a b
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2 2
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insert into t3 values (2,2);
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(select a,b from t1) intersect all (select c,d from t2) intersect (select e,f from t3);
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a b
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2 2
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(select a,b from t1) intersect all (select c,e from t2,t3);
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a b
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2 2
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2 2
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2 2
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EXPLAIN (select a,b from t1) intersect all (select c,e from t2,t3);
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id select_type table type possible_keys key key_len ref rows Extra
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1 PRIMARY t1 ALL NULL NULL NULL NULL 6
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2 INTERSECT t3 ALL NULL NULL NULL NULL 5
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2 INTERSECT t2 ALL NULL NULL NULL NULL 7 Using join buffer (flat, BNL join)
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NULL INTERSECT RESULT <intersect1,2> ALL NULL NULL NULL NULL NULL
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EXPLAIN extended (select a,b from t1) intersect all (select c,e from t2,t3);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY t1 ALL NULL NULL NULL NULL 6 100.00
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2 INTERSECT t3 ALL NULL NULL NULL NULL 5 100.00
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2 INTERSECT t2 ALL NULL NULL NULL NULL 7 100.00 Using join buffer (flat, BNL join)
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NULL INTERSECT RESULT <intersect1,2> ALL NULL NULL NULL NULL NULL NULL
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Warnings:
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Note 1003 (/* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1`) intersect all (/* select#2 */ select `test`.`t2`.`c` AS `c`,`test`.`t3`.`e` AS `e` from `test`.`t2` join `test`.`t3`)
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EXPLAIN extended select * from ((select a,b from t1) intersect all (select c,e from t2,t3)) a;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY <derived2> ALL NULL NULL NULL NULL 6 100.00
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2 DERIVED t1 ALL NULL NULL NULL NULL 6 100.00
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3 INTERSECT t3 ALL NULL NULL NULL NULL 5 100.00
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3 INTERSECT t2 ALL NULL NULL NULL NULL 7 100.00 Using join buffer (flat, BNL join)
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NULL INTERSECT RESULT <intersect2,3> ALL NULL NULL NULL NULL NULL NULL
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Warnings:
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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 all (/* select#3 */ select `test`.`t2`.`c` AS `c`,`test`.`t3`.`e` AS `e` from `test`.`t2` join `test`.`t3`)) `a`
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EXPLAIN format=json (select a,b from t1) intersect all (select c,e from t2,t3);
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EXPLAIN
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{
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"query_block": {
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"union_result": {
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"table_name": "<intersect1,2>",
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"access_type": "ALL",
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"query_specifications": [
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{
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"query_block": {
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"select_id": 1,
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"nested_loop": [
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{
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"table": {
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"table_name": "t1",
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"access_type": "ALL",
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"rows": 6,
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"filtered": 100
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}
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}
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]
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}
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},
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{
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"query_block": {
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"select_id": 2,
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"operation": "INTERSECT",
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"nested_loop": [
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{
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"table": {
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"table_name": "t3",
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"access_type": "ALL",
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"rows": 5,
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"filtered": 100
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}
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},
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{
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"block-nl-join": {
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"table": {
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"table_name": "t2",
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"access_type": "ALL",
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"rows": 7,
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"filtered": 100
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},
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"buffer_type": "flat",
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"buffer_size": "65",
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"join_type": "BNL"
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}
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}
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]
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}
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}
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]
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}
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}
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}
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ANALYZE format=json (select a,b from t1) intersect all (select c,e from t2,t3);
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ANALYZE
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{
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"query_optimization": {
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"r_total_time_ms": "REPLACED"
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},
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"query_block": {
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"union_result": {
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"table_name": "<intersect1,2>",
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"access_type": "ALL",
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"r_loops": 1,
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"r_rows": 3,
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"query_specifications": [
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{
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"query_block": {
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"select_id": 1,
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"r_loops": 1,
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"r_total_time_ms": "REPLACED",
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"nested_loop": [
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{
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"table": {
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"table_name": "t1",
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"access_type": "ALL",
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"r_loops": 1,
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"rows": 6,
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"r_rows": 6,
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"r_table_time_ms": "REPLACED",
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"r_other_time_ms": "REPLACED",
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"r_engine_stats": REPLACED,
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"filtered": 100,
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"r_filtered": 100
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}
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}
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]
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}
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},
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{
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"query_block": {
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"select_id": 2,
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"operation": "INTERSECT",
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"r_loops": 1,
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"r_total_time_ms": "REPLACED",
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"nested_loop": [
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{
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"table": {
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"table_name": "t3",
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"access_type": "ALL",
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"r_loops": 1,
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"rows": 5,
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"r_rows": 5,
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"r_table_time_ms": "REPLACED",
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"r_other_time_ms": "REPLACED",
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"r_engine_stats": REPLACED,
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"filtered": 100,
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"r_filtered": 100
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}
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},
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{
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"block-nl-join": {
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"table": {
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"table_name": "t2",
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"access_type": "ALL",
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"r_loops": 1,
|
|
"rows": 7,
|
|
"r_rows": 7,
|
|
"r_table_time_ms": "REPLACED",
|
|
"r_other_time_ms": "REPLACED",
|
|
"r_engine_stats": REPLACED,
|
|
"filtered": 100,
|
|
"r_filtered": 100
|
|
},
|
|
"buffer_type": "flat",
|
|
"buffer_size": "65",
|
|
"join_type": "BNL",
|
|
"r_loops": 5,
|
|
"r_filtered": 100,
|
|
"r_unpack_time_ms": "REPLACED",
|
|
"r_other_time_ms": "REPLACED",
|
|
"r_effective_rows": 7
|
|
}
|
|
}
|
|
]
|
|
}
|
|
}
|
|
]
|
|
}
|
|
}
|
|
}
|
|
ANALYZE format=json select * from ((select a,b from t1) intersect all (select c,e from t2,t3)) a;
|
|
ANALYZE
|
|
{
|
|
"query_optimization": {
|
|
"r_total_time_ms": "REPLACED"
|
|
},
|
|
"query_block": {
|
|
"select_id": 1,
|
|
"r_loops": 1,
|
|
"r_total_time_ms": "REPLACED",
|
|
"nested_loop": [
|
|
{
|
|
"table": {
|
|
"table_name": "<derived2>",
|
|
"access_type": "ALL",
|
|
"r_loops": 1,
|
|
"rows": 6,
|
|
"r_rows": 3,
|
|
"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": 3,
|
|
"query_specifications": [
|
|
{
|
|
"query_block": {
|
|
"select_id": 2,
|
|
"r_loops": 1,
|
|
"r_total_time_ms": "REPLACED",
|
|
"nested_loop": [
|
|
{
|
|
"table": {
|
|
"table_name": "t1",
|
|
"access_type": "ALL",
|
|
"r_loops": 1,
|
|
"rows": 6,
|
|
"r_rows": 6,
|
|
"r_table_time_ms": "REPLACED",
|
|
"r_other_time_ms": "REPLACED",
|
|
"r_engine_stats": REPLACED,
|
|
"filtered": 100,
|
|
"r_filtered": 100
|
|
}
|
|
}
|
|
]
|
|
}
|
|
},
|
|
{
|
|
"query_block": {
|
|
"select_id": 3,
|
|
"operation": "INTERSECT",
|
|
"r_loops": 1,
|
|
"r_total_time_ms": "REPLACED",
|
|
"nested_loop": [
|
|
{
|
|
"table": {
|
|
"table_name": "t3",
|
|
"access_type": "ALL",
|
|
"r_loops": 1,
|
|
"rows": 5,
|
|
"r_rows": 5,
|
|
"r_table_time_ms": "REPLACED",
|
|
"r_other_time_ms": "REPLACED",
|
|
"r_engine_stats": REPLACED,
|
|
"filtered": 100,
|
|
"r_filtered": 100
|
|
}
|
|
},
|
|
{
|
|
"block-nl-join": {
|
|
"table": {
|
|
"table_name": "t2",
|
|
"access_type": "ALL",
|
|
"r_loops": 1,
|
|
"rows": 7,
|
|
"r_rows": 7,
|
|
"r_table_time_ms": "REPLACED",
|
|
"r_other_time_ms": "REPLACED",
|
|
"r_engine_stats": REPLACED,
|
|
"filtered": 100,
|
|
"r_filtered": 100
|
|
},
|
|
"buffer_type": "flat",
|
|
"buffer_size": "65",
|
|
"join_type": "BNL",
|
|
"r_loops": 5,
|
|
"r_filtered": 100,
|
|
"r_unpack_time_ms": "REPLACED",
|
|
"r_other_time_ms": "REPLACED",
|
|
"r_effective_rows": 7
|
|
}
|
|
}
|
|
]
|
|
}
|
|
}
|
|
]
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
]
|
|
}
|
|
}
|
|
select * from ((select a,b from t1) intersect all (select c,e from t2,t3)) a;
|
|
a b
|
|
2 2
|
|
2 2
|
|
2 2
|
|
prepare stmt from "(select a,b from t1) intersect all (select c,e from t2,t3);";
|
|
execute stmt;
|
|
a b
|
|
2 2
|
|
2 2
|
|
2 2
|
|
execute stmt;
|
|
a b
|
|
2 2
|
|
2 2
|
|
2 2
|
|
prepare stmt from "select * from ((select a,b from t1) intersect all (select c,e from t2,t3)) a";
|
|
execute stmt;
|
|
a b
|
|
2 2
|
|
2 2
|
|
2 2
|
|
execute stmt;
|
|
a b
|
|
2 2
|
|
2 2
|
|
2 2
|
|
drop tables t1,t2,t3;
|
|
select 1 as a from dual intersect all select 1 from dual;
|
|
a
|
|
1
|
|
(select 1 from dual) intersect all (select 1 from dual);
|
|
1
|
|
1
|
|
(select 1 from dual into @v) intersect all (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 all (select 1 from dual)' at line 1
|
|
select 1 from dual ORDER BY 1 intersect all 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 all 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"),(2, "fgh", 2, "dffggtt");
|
|
insert into t2 values (2, "fgh", 2, "dffggtt"),(3, "ffggddd", 3, "dfgg"),(2, "fgh", 2, "dffggtt");
|
|
(select a,b,b1 from t1) intersect all (select c,d,d1 from t2);
|
|
a b b1
|
|
2 fgh dffggtt
|
|
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),(2,2),(3,3);
|
|
insert into t2 values (2,2),(3,3),(4,4),(2,2),(2,2),(2,2);
|
|
insert into t3 values (1,1),(2,2),(5,5),(2,2),(5,5);
|
|
(select a,b from t1) intersect all (select c,d from t2) intersect all (select e,f from t3);
|
|
a b
|
|
2 2
|
|
2 2
|
|
select * from ((select a,b from t1) intersect all (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 all (select c,d from t2) intersect all (select e,f from t3);";
|
|
execute stmt;
|
|
a b
|
|
2 2
|
|
2 2
|
|
execute stmt;
|
|
a b
|
|
2 2
|
|
2 2
|
|
prepare stmt from "select * from ((select a,b from t1) intersect all (select c,d from t2) intersect all (select e,f from t3)) a";
|
|
execute stmt;
|
|
a b
|
|
2 2
|
|
2 2
|
|
execute stmt;
|
|
a b
|
|
2 2
|
|
2 2
|
|
create table t4 (select a,b from t1) intersect all (select c,d from t2) intersect all (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 t4;
|
|
(select a,b from t1) intersect all (select c,d from t2) intersect all (select e,f from t3) union all (select 4,4);
|
|
a b
|
|
4 4
|
|
2 2
|
|
2 2
|
|
(select a,b from t1) intersect all (select c,d from t2) intersect all (select e,f from t3) union all (select 4,4) except all (select 2,2);
|
|
a b
|
|
4 4
|
|
2 2
|
|
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),(2,2),(3,3);
|
|
insert into t2 values (2,2),(3,3),(4,4),(2,2),(2,2),(2,2);
|
|
insert into t3 values (1,1),(2,2),(5,5),(2,2),(5,5);
|
|
(select a,b from t1) intersect all (select c,d from t2) intersect all (select e,f from t3) union all (select 4,4);
|
|
a b
|
|
4 4
|
|
2 2
|
|
2 2
|
|
(select a,b from t1) intersect all (select c,d from t2) intersect all (select e,f from t3) union all (select 4,4) except all (select 2,2);
|
|
a b
|
|
4 4
|
|
2 2
|
|
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 all (select c,d from t2) intersect (select e,f from t3) union all (select 4,4);
|
|
a b
|
|
5 5
|
|
6 6
|
|
3 3
|
|
4 4
|
|
(select a,b from t1) union all (select c,d from t2) intersect all (select e,f from t3) union all (select 4,4);
|
|
a b
|
|
5 5
|
|
6 6
|
|
3 3
|
|
4 4
|
|
explain extended (select a,b from t1) union all (select c,d from t2) intersect all (select e,f from t3) union all (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
|
|
Warnings:
|
|
Note 1003 (/* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1`) union all /* 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 all (/* select#3 */ select `test`.`t3`.`e` AS `e`,`test`.`t3`.`f` AS `f` from `test`.`t3`)) `__5` union all (/* select#4 */ select 4 AS `4`,4 AS `4`)
|
|
insert into t2 values (3,3);
|
|
insert into t3 values (3,3);
|
|
(select e,f from t3) intersect all (select c,d from t2) union all (select a,b from t1) union all (select 4,4);
|
|
e f
|
|
3 3
|
|
3 3
|
|
5 5
|
|
6 6
|
|
4 4
|
|
explain extended (select e,f from t3) intersect all (select c,d from t2) union all (select a,b from t1) union all (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 3 100.00
|
|
2 INTERSECT t2 ALL NULL NULL NULL NULL 3 100.00
|
|
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 all (/* select#2 */ select `test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d` from `test`.`t2`) union all (/* select#3 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1`) union all (/* 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 all (/* 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
|
|
5 5
|
|
6 6
|
|
3 3
|
|
4 4
|
|
prepare stmt from "(select a,b from t1) union all (select c,d from t2) intersect all (select e,f from t3) union all (select 4,4)";
|
|
execute stmt;
|
|
a b
|
|
5 5
|
|
6 6
|
|
3 3
|
|
3 3
|
|
4 4
|
|
execute stmt;
|
|
a b
|
|
5 5
|
|
6 6
|
|
3 3
|
|
3 3
|
|
4 4
|
|
create view v1 as (select a,b from t1) union all (select c,d from t2) intersect all (select e,f from t3) union all (select 4,4);
|
|
select b,a,b+1 from v1;
|
|
b a b+1
|
|
5 5 6
|
|
6 6 7
|
|
3 3 4
|
|
3 3 4
|
|
4 4 5
|
|
select b,a,b+1 from v1 where a > 3;
|
|
b a b+1
|
|
5 5 6
|
|
6 6 7
|
|
4 4 5
|
|
create procedure p1()
|
|
select * from v1;
|
|
call p1();
|
|
a b
|
|
5 5
|
|
6 6
|
|
3 3
|
|
3 3
|
|
4 4
|
|
call p1();
|
|
a b
|
|
5 5
|
|
6 6
|
|
3 3
|
|
3 3
|
|
4 4
|
|
drop procedure p1;
|
|
create procedure p1()
|
|
(select a,b from t1) union all (select c,d from t2) intersect all (select e,f from t3) union all (select 4,4);
|
|
call p1();
|
|
a b
|
|
5 5
|
|
6 6
|
|
3 3
|
|
3 3
|
|
4 4
|
|
call p1();
|
|
a b
|
|
5 5
|
|
6 6
|
|
3 3
|
|
3 3
|
|
4 4
|
|
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 all select `__6`.`c` AS `c`,`__6`.`d` AS `d` from ((select `t2`.`c` AS `c`,`t2`.`d` AS `d` from `t2`) intersect all (select `t3`.`e` AS `e`,`t3`.`f` AS `f` from `t3`)) `__6` union all (select 4 AS `4`,4 AS `4`) latin1 latin1_swedish_ci
|
|
drop view v1;
|
|
drop tables t1,t2,t3;
|
|
CREATE TABLE t (i INT);
|
|
INSERT INTO t VALUES (1),(2);
|
|
SELECT * FROM t WHERE i != ANY ( SELECT 6 INTERSECT ALL SELECT 3 );
|
|
i
|
|
select i from t where
|
|
exists ((select 6 as r from dual having t.i <> 6)
|
|
intersect all
|
|
(select 3 from dual having t.i <> 3));
|
|
i
|
|
drop table t;
|
|
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
|
|
select count(*) from (
|
|
SELECT * FROM t1 LEFT OUTER JOIN t2 LEFT OUTER JOIN t3 ON b < c ON a > b
|
|
INTERSECT ALL
|
|
SELECT * FROM t1 LEFT OUTER JOIN t2 LEFT OUTER JOIN t3 ON b < c ON a > b
|
|
) a;
|
|
count(*)
|
|
14848
|
|
insert into t1 values ('Xiamen');
|
|
insert into t2 values ('Xiamen'),('Xiamen');
|
|
insert into t3 values ('Xiamen');
|
|
select count(*) from (
|
|
SELECT * FROM t1 LEFT OUTER JOIN t2 LEFT OUTER JOIN t3 ON b < c ON a > b
|
|
INTERSECT ALL
|
|
SELECT * FROM t1 LEFT OUTER JOIN t2 LEFT OUTER JOIN t3 ON b < c ON a > b
|
|
) a;
|
|
count(*)
|
|
16430
|
|
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'),('Detroit'),('Detroit');
|
|
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'),('Detroit'),('Detroit');
|
|
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'),
|
|
('Detroit');
|
|
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(*)
|
|
15547
|
|
drop table t1,t2,t3;
|
|
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 all select * from t12;
|
|
c1
|
|
1
|
|
3
|
|
2
|
|
drop table t12,t13,t234;
|
|
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), (2), (2);
|
|
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 all
|
|
select * from t3 where a < 5;
|
|
a
|
|
7
|
|
7
|
|
2
|
|
1
|
|
2
|
|
explain extended
|
|
select * from t1 where a > 4
|
|
union all
|
|
select * from t2 where a < 5
|
|
intersect all
|
|
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 7 100.00
|
|
2 DERIVED t2 ALL NULL NULL NULL NULL 8 100.00 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 all /* select#3 */ select `test`.`t3`.`a` AS `a` from `test`.`t3` where `test`.`t3`.`a` < 5) `__4`
|
|
drop table t1,t2,t3;
|