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			1007 lines
		
	
	
	
		
			35 KiB
		
	
	
	
		
			Text
		
	
	
	
	
	
			
		
		
	
	
			1007 lines
		
	
	
	
		
			35 KiB
		
	
	
	
		
			Text
		
	
	
	
	
	
set @@join_buffer_size=256*1024;
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set @save_optimizer_switch=@@optimizer_switch;
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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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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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a	b
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2	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);
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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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a	b
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2	2
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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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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	3	
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2	INTERSECT	t2	ALL	NULL	NULL	NULL	NULL	3	
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3	INTERSECT	t3	ALL	NULL	NULL	NULL	NULL	3	
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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	
 | 
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2	INTERSECT	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	
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						|
3	INTERSECT	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	
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						|
NULL	INTERSECT RESULT	<intersect1,2,3>	ALL	NULL	NULL	NULL	NULL	NULL	NULL	
 | 
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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`)
 | 
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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;
 | 
						|
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	
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						|
3	INTERSECT	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	
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						|
4	INTERSECT	t3	ALL	NULL	NULL	NULL	NULL	3	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 (/* 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`
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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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EXPLAIN
 | 
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{
 | 
						|
  "query_block": {
 | 
						|
    "union_result": {
 | 
						|
      "table_name": "<intersect1,2,3>",
 | 
						|
      "access_type": "ALL",
 | 
						|
      "query_specifications": [
 | 
						|
        {
 | 
						|
          "query_block": {
 | 
						|
            "select_id": 1,
 | 
						|
            "cost": "COST_REPLACED",
 | 
						|
            "nested_loop": [
 | 
						|
              {
 | 
						|
                "table": {
 | 
						|
                  "table_name": "t1",
 | 
						|
                  "access_type": "ALL",
 | 
						|
                  "loops": 1,
 | 
						|
                  "rows": 3,
 | 
						|
                  "cost": "COST_REPLACED",
 | 
						|
                  "filtered": 100
 | 
						|
                }
 | 
						|
              }
 | 
						|
            ]
 | 
						|
          }
 | 
						|
        },
 | 
						|
        {
 | 
						|
          "query_block": {
 | 
						|
            "select_id": 2,
 | 
						|
            "operation": "INTERSECT",
 | 
						|
            "cost": "COST_REPLACED",
 | 
						|
            "nested_loop": [
 | 
						|
              {
 | 
						|
                "table": {
 | 
						|
                  "table_name": "t2",
 | 
						|
                  "access_type": "ALL",
 | 
						|
                  "loops": 1,
 | 
						|
                  "rows": 3,
 | 
						|
                  "cost": "COST_REPLACED",
 | 
						|
                  "filtered": 100
 | 
						|
                }
 | 
						|
              }
 | 
						|
            ]
 | 
						|
          }
 | 
						|
        },
 | 
						|
        {
 | 
						|
          "query_block": {
 | 
						|
            "select_id": 3,
 | 
						|
            "operation": "INTERSECT",
 | 
						|
            "cost": "COST_REPLACED",
 | 
						|
            "nested_loop": [
 | 
						|
              {
 | 
						|
                "table": {
 | 
						|
                  "table_name": "t3",
 | 
						|
                  "access_type": "ALL",
 | 
						|
                  "loops": 1,
 | 
						|
                  "rows": 3,
 | 
						|
                  "cost": "COST_REPLACED",
 | 
						|
                  "filtered": 100
 | 
						|
                }
 | 
						|
              }
 | 
						|
            ]
 | 
						|
          }
 | 
						|
        }
 | 
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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 (select c,d from t2) intersect (select e,f from t3);
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ANALYZE
 | 
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{
 | 
						|
  "query_optimization": {
 | 
						|
    "r_total_time_ms": "REPLACED"
 | 
						|
  },
 | 
						|
  "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,
 | 
						|
            "cost": "REPLACED",
 | 
						|
            "r_loops": 1,
 | 
						|
            "r_total_time_ms": "REPLACED",
 | 
						|
            "nested_loop": [
 | 
						|
              {
 | 
						|
                "table": {
 | 
						|
                  "table_name": "t1",
 | 
						|
                  "access_type": "ALL",
 | 
						|
                  "loops": 1,
 | 
						|
                  "r_loops": 1,
 | 
						|
                  "rows": 3,
 | 
						|
                  "r_rows": 3,
 | 
						|
                  "cost": "REPLACED",
 | 
						|
                  "r_table_time_ms": "REPLACED",
 | 
						|
                  "r_other_time_ms": "REPLACED",
 | 
						|
                  "r_engine_stats": REPLACED,
 | 
						|
                  "filtered": 100,
 | 
						|
                  "r_filtered": 100
 | 
						|
                }
 | 
						|
              }
 | 
						|
            ]
 | 
						|
          }
 | 
						|
        },
 | 
						|
        {
 | 
						|
          "query_block": {
 | 
						|
            "select_id": 2,
 | 
						|
            "operation": "INTERSECT",
 | 
						|
            "cost": "REPLACED",
 | 
						|
            "r_loops": 1,
 | 
						|
            "r_total_time_ms": "REPLACED",
 | 
						|
            "nested_loop": [
 | 
						|
              {
 | 
						|
                "table": {
 | 
						|
                  "table_name": "t2",
 | 
						|
                  "access_type": "ALL",
 | 
						|
                  "loops": 1,
 | 
						|
                  "r_loops": 1,
 | 
						|
                  "rows": 3,
 | 
						|
                  "r_rows": 3,
 | 
						|
                  "cost": "REPLACED",
 | 
						|
                  "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",
 | 
						|
            "cost": "REPLACED",
 | 
						|
            "r_loops": 1,
 | 
						|
            "r_total_time_ms": "REPLACED",
 | 
						|
            "nested_loop": [
 | 
						|
              {
 | 
						|
                "table": {
 | 
						|
                  "table_name": "t3",
 | 
						|
                  "access_type": "ALL",
 | 
						|
                  "loops": 1,
 | 
						|
                  "r_loops": 1,
 | 
						|
                  "rows": 3,
 | 
						|
                  "r_rows": 3,
 | 
						|
                  "cost": "REPLACED",
 | 
						|
                  "r_table_time_ms": "REPLACED",
 | 
						|
                  "r_other_time_ms": "REPLACED",
 | 
						|
                  "r_engine_stats": 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_optimization": {
 | 
						|
    "r_total_time_ms": "REPLACED"
 | 
						|
  },
 | 
						|
  "query_block": {
 | 
						|
    "select_id": 1,
 | 
						|
    "cost": "REPLACED",
 | 
						|
    "r_loops": 1,
 | 
						|
    "r_total_time_ms": "REPLACED",
 | 
						|
    "nested_loop": [
 | 
						|
      {
 | 
						|
        "table": {
 | 
						|
          "table_name": "<derived2>",
 | 
						|
          "access_type": "ALL",
 | 
						|
          "loops": 1,
 | 
						|
          "r_loops": 1,
 | 
						|
          "rows": 3,
 | 
						|
          "r_rows": 1,
 | 
						|
          "cost": "REPLACED",
 | 
						|
          "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,
 | 
						|
                      "cost": "REPLACED",
 | 
						|
                      "r_loops": 1,
 | 
						|
                      "r_total_time_ms": "REPLACED",
 | 
						|
                      "nested_loop": [
 | 
						|
                        {
 | 
						|
                          "table": {
 | 
						|
                            "table_name": "t1",
 | 
						|
                            "access_type": "ALL",
 | 
						|
                            "loops": 1,
 | 
						|
                            "r_loops": 1,
 | 
						|
                            "rows": 3,
 | 
						|
                            "r_rows": 3,
 | 
						|
                            "cost": "REPLACED",
 | 
						|
                            "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",
 | 
						|
                      "cost": "REPLACED",
 | 
						|
                      "r_loops": 1,
 | 
						|
                      "r_total_time_ms": "REPLACED",
 | 
						|
                      "nested_loop": [
 | 
						|
                        {
 | 
						|
                          "table": {
 | 
						|
                            "table_name": "t2",
 | 
						|
                            "access_type": "ALL",
 | 
						|
                            "loops": 1,
 | 
						|
                            "r_loops": 1,
 | 
						|
                            "rows": 3,
 | 
						|
                            "r_rows": 3,
 | 
						|
                            "cost": "REPLACED",
 | 
						|
                            "r_table_time_ms": "REPLACED",
 | 
						|
                            "r_other_time_ms": "REPLACED",
 | 
						|
                            "r_engine_stats": REPLACED,
 | 
						|
                            "filtered": 100,
 | 
						|
                            "r_filtered": 100
 | 
						|
                          }
 | 
						|
                        }
 | 
						|
                      ]
 | 
						|
                    }
 | 
						|
                  },
 | 
						|
                  {
 | 
						|
                    "query_block": {
 | 
						|
                      "select_id": 4,
 | 
						|
                      "operation": "INTERSECT",
 | 
						|
                      "cost": "REPLACED",
 | 
						|
                      "r_loops": 1,
 | 
						|
                      "r_total_time_ms": "REPLACED",
 | 
						|
                      "nested_loop": [
 | 
						|
                        {
 | 
						|
                          "table": {
 | 
						|
                            "table_name": "t3",
 | 
						|
                            "access_type": "ALL",
 | 
						|
                            "loops": 1,
 | 
						|
                            "r_loops": 1,
 | 
						|
                            "rows": 3,
 | 
						|
                            "r_rows": 3,
 | 
						|
                            "cost": "REPLACED",
 | 
						|
                            "r_table_time_ms": "REPLACED",
 | 
						|
                            "r_other_time_ms": "REPLACED",
 | 
						|
                            "r_engine_stats": 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,
 | 
						|
            "cost": "COST_REPLACED",
 | 
						|
            "nested_loop": [
 | 
						|
              {
 | 
						|
                "table": {
 | 
						|
                  "table_name": "t1",
 | 
						|
                  "access_type": "ALL",
 | 
						|
                  "loops": 1,
 | 
						|
                  "rows": 3,
 | 
						|
                  "cost": "COST_REPLACED",
 | 
						|
                  "filtered": 100
 | 
						|
                }
 | 
						|
              }
 | 
						|
            ]
 | 
						|
          }
 | 
						|
        },
 | 
						|
        {
 | 
						|
          "query_block": {
 | 
						|
            "select_id": 2,
 | 
						|
            "operation": "INTERSECT",
 | 
						|
            "cost": "COST_REPLACED",
 | 
						|
            "nested_loop": [
 | 
						|
              {
 | 
						|
                "table": {
 | 
						|
                  "table_name": "t2",
 | 
						|
                  "access_type": "ALL",
 | 
						|
                  "loops": 1,
 | 
						|
                  "rows": 3,
 | 
						|
                  "cost": "COST_REPLACED",
 | 
						|
                  "filtered": 100
 | 
						|
                }
 | 
						|
              },
 | 
						|
              {
 | 
						|
                "block-nl-join": {
 | 
						|
                  "table": {
 | 
						|
                    "table_name": "t3",
 | 
						|
                    "access_type": "ALL",
 | 
						|
                    "loops": 3,
 | 
						|
                    "rows": 3,
 | 
						|
                    "cost": "COST_REPLACED",
 | 
						|
                    "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_optimization": {
 | 
						|
    "r_total_time_ms": "REPLACED"
 | 
						|
  },
 | 
						|
  "query_block": {
 | 
						|
    "union_result": {
 | 
						|
      "table_name": "<intersect1,2>",
 | 
						|
      "access_type": "ALL",
 | 
						|
      "r_loops": 1,
 | 
						|
      "r_rows": 1,
 | 
						|
      "query_specifications": [
 | 
						|
        {
 | 
						|
          "query_block": {
 | 
						|
            "select_id": 1,
 | 
						|
            "cost": "REPLACED",
 | 
						|
            "r_loops": 1,
 | 
						|
            "r_total_time_ms": "REPLACED",
 | 
						|
            "nested_loop": [
 | 
						|
              {
 | 
						|
                "table": {
 | 
						|
                  "table_name": "t1",
 | 
						|
                  "access_type": "ALL",
 | 
						|
                  "loops": 1,
 | 
						|
                  "r_loops": 1,
 | 
						|
                  "rows": 3,
 | 
						|
                  "r_rows": 3,
 | 
						|
                  "cost": "REPLACED",
 | 
						|
                  "r_table_time_ms": "REPLACED",
 | 
						|
                  "r_other_time_ms": "REPLACED",
 | 
						|
                  "r_engine_stats": REPLACED,
 | 
						|
                  "filtered": 100,
 | 
						|
                  "r_filtered": 100
 | 
						|
                }
 | 
						|
              }
 | 
						|
            ]
 | 
						|
          }
 | 
						|
        },
 | 
						|
        {
 | 
						|
          "query_block": {
 | 
						|
            "select_id": 2,
 | 
						|
            "operation": "INTERSECT",
 | 
						|
            "cost": "REPLACED",
 | 
						|
            "r_loops": 1,
 | 
						|
            "r_total_time_ms": "REPLACED",
 | 
						|
            "nested_loop": [
 | 
						|
              {
 | 
						|
                "table": {
 | 
						|
                  "table_name": "t2",
 | 
						|
                  "access_type": "ALL",
 | 
						|
                  "loops": 1,
 | 
						|
                  "r_loops": 1,
 | 
						|
                  "rows": 3,
 | 
						|
                  "r_rows": 3,
 | 
						|
                  "cost": "REPLACED",
 | 
						|
                  "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": "t3",
 | 
						|
                    "access_type": "ALL",
 | 
						|
                    "loops": 3,
 | 
						|
                    "r_loops": 1,
 | 
						|
                    "rows": 3,
 | 
						|
                    "r_rows": 3,
 | 
						|
                    "cost": "REPLACED",
 | 
						|
                    "r_table_time_ms": "REPLACED",
 | 
						|
                    "r_other_time_ms": "REPLACED",
 | 
						|
                    "r_engine_stats": 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_optimization": {
 | 
						|
    "r_total_time_ms": "REPLACED"
 | 
						|
  },
 | 
						|
  "query_block": {
 | 
						|
    "select_id": 1,
 | 
						|
    "cost": "REPLACED",
 | 
						|
    "r_loops": 1,
 | 
						|
    "r_total_time_ms": "REPLACED",
 | 
						|
    "nested_loop": [
 | 
						|
      {
 | 
						|
        "table": {
 | 
						|
          "table_name": "<derived2>",
 | 
						|
          "access_type": "ALL",
 | 
						|
          "loops": 1,
 | 
						|
          "r_loops": 1,
 | 
						|
          "rows": 3,
 | 
						|
          "r_rows": 1,
 | 
						|
          "cost": "REPLACED",
 | 
						|
          "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,
 | 
						|
                      "cost": "REPLACED",
 | 
						|
                      "r_loops": 1,
 | 
						|
                      "r_total_time_ms": "REPLACED",
 | 
						|
                      "nested_loop": [
 | 
						|
                        {
 | 
						|
                          "table": {
 | 
						|
                            "table_name": "t1",
 | 
						|
                            "access_type": "ALL",
 | 
						|
                            "loops": 1,
 | 
						|
                            "r_loops": 1,
 | 
						|
                            "rows": 3,
 | 
						|
                            "r_rows": 3,
 | 
						|
                            "cost": "REPLACED",
 | 
						|
                            "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",
 | 
						|
                      "cost": "REPLACED",
 | 
						|
                      "r_loops": 1,
 | 
						|
                      "r_total_time_ms": "REPLACED",
 | 
						|
                      "nested_loop": [
 | 
						|
                        {
 | 
						|
                          "table": {
 | 
						|
                            "table_name": "t2",
 | 
						|
                            "access_type": "ALL",
 | 
						|
                            "loops": 1,
 | 
						|
                            "r_loops": 1,
 | 
						|
                            "rows": 3,
 | 
						|
                            "r_rows": 3,
 | 
						|
                            "cost": "REPLACED",
 | 
						|
                            "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": "t3",
 | 
						|
                              "access_type": "ALL",
 | 
						|
                              "loops": 3,
 | 
						|
                              "r_loops": 1,
 | 
						|
                              "rows": 3,
 | 
						|
                              "r_rows": 3,
 | 
						|
                              "cost": "REPLACED",
 | 
						|
                              "r_table_time_ms": "REPLACED",
 | 
						|
                              "r_other_time_ms": "REPLACED",
 | 
						|
                              "r_engine_stats": 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;
 |