1201 lines
		
	
	
		
			33 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
		
		
			
		
	
	
			1201 lines
		
	
	
		
			33 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
|  | 
 | ||
|  | --disable_warnings | ||
|  | DROP TABLE IF EXISTS t0,t1,t2,t3,t4,t5,t6,t7,t8,t9; | ||
|  | --enable_warnings | ||
|  | 
 | ||
|  | CREATE TABLE t0 (a int, b int, c int); | ||
|  | CREATE TABLE t1 (a int, b int, c int); | ||
|  | CREATE TABLE t2 (a int, b int, c int); | ||
|  | CREATE TABLE t3 (a int, b int, c int); | ||
|  | CREATE TABLE t4 (a int, b int, c int); | ||
|  | CREATE TABLE t5 (a int, b int, c int); | ||
|  | CREATE TABLE t6 (a int, b int, c int); | ||
|  | CREATE TABLE t7 (a int, b int, c int); | ||
|  | CREATE TABLE t8 (a int, b int, c int); | ||
|  | CREATE TABLE t9 (a int, b int, c int); | ||
|  | 
 | ||
|  | INSERT INTO t0 VALUES (1,1,0), (1,2,0), (2,2,0); | ||
|  | INSERT INTO t1 VALUES (1,3,0), (2,2,0), (3,2,0); | ||
|  | INSERT INTO t2 VALUES (3,3,0), (4,2,0), (5,3,0); | ||
|  | INSERT INTO t3 VALUES (1,2,0), (2,2,0); | ||
|  | INSERT INTO t4 VALUES (3,2,0), (4,2,0); | ||
|  | INSERT INTO t5 VALUES (3,1,0), (2,2,0), (3,3,0); | ||
|  | INSERT INTO t6 VALUES (3,2,0), (6,2,0), (6,1,0); | ||
|  | INSERT INTO t7 VALUES (1,1,0), (2,2,0); | ||
|  | INSERT INTO t8 VALUES (0,2,0), (1,2,0); | ||
|  | INSERT INTO t9 VALUES (1,1,0), (1,2,0), (3,3,0); | ||
|  | 
 | ||
|  | 
 | ||
|  | SELECT t2.a,t2.b | ||
|  |   FROM t2; | ||
|  | 
 | ||
|  | SELECT t3.a,t3.b | ||
|  |   FROM t3; | ||
|  | 
 | ||
|  | SELECT t4.a,t4.b | ||
|  |   FROM t4; | ||
|  | 
 | ||
|  | SELECT t3.a,t3.b,t4.a,t4.b | ||
|  |   FROM t3,t4; | ||
|  | 
 | ||
|  | SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b | ||
|  |   FROM t2 | ||
|  |        LEFT JOIN               | ||
|  |        (t3, t4) | ||
|  |        ON t2.b=t4.b; | ||
|  | 
 | ||
|  | SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b | ||
|  |   FROM t2 | ||
|  |        LEFT JOIN               | ||
|  |        (t3, t4) | ||
|  |        ON t3.a=1 AND t2.b=t4.b; | ||
|  | 
 | ||
|  | EXPLAIN EXTENDED | ||
|  | SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b | ||
|  |   FROM t2 | ||
|  |        LEFT JOIN               | ||
|  |        (t3, t4) | ||
|  |        ON t2.b=t4.b | ||
|  |     WHERE t3.a=1 OR t3.c IS NULL; | ||
|  | 
 | ||
|  | SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b | ||
|  |   FROM t2 | ||
|  |        LEFT JOIN               | ||
|  |        (t3, t4) | ||
|  |        ON t2.b=t4.b | ||
|  |     WHERE t3.a=1 OR t3.c IS NULL; | ||
|  | 
 | ||
|  | SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b | ||
|  |   FROM t2 | ||
|  |        LEFT JOIN               | ||
|  |        (t3, t4) | ||
|  |        ON t2.b=t4.b | ||
|  |     WHERE t3.a>1 OR t3.c IS NULL; | ||
|  | 
 | ||
|  | SELECT t5.a,t5.b | ||
|  |   FROM t5; | ||
|  | 
 | ||
|  | SELECT t3.a,t3.b,t4.a,t4.b,t5.a,t5.b | ||
|  |   FROM t3,t4,t5; | ||
|  | 
 | ||
|  | SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,t5.a,t5.b | ||
|  |   FROM t2 | ||
|  |        LEFT JOIN               | ||
|  |        (t3, t4, t5) | ||
|  |        ON t2.b=t4.b; | ||
|  | 
 | ||
|  | EXPLAIN EXTENDED | ||
|  | SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,t5.a,t5.b | ||
|  |   FROM t2 | ||
|  |        LEFT JOIN               | ||
|  |        (t3, t4, t5) | ||
|  |        ON t2.b=t4.b | ||
|  |     WHERE t3.a>1 OR t3.c IS NULL; | ||
|  | 
 | ||
|  | SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,t5.a,t5.b | ||
|  |   FROM t2 | ||
|  |        LEFT JOIN               | ||
|  |        (t3, t4, t5) | ||
|  |        ON t2.b=t4.b | ||
|  |     WHERE t3.a>1 OR t3.c IS NULL; | ||
|  | 
 | ||
|  | EXPLAIN EXTENDED | ||
|  | SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,t5.a,t5.b | ||
|  |   FROM t2 | ||
|  |        LEFT JOIN               | ||
|  |        (t3, t4, t5) | ||
|  |        ON t2.b=t4.b | ||
|  |     WHERE (t3.a>1 OR t3.c IS NULL) AND  | ||
|  |           (t5.a<3 OR t5.c IS NULL); | ||
|  | 
 | ||
|  | SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,t5.a,t5.b | ||
|  |   FROM t2 | ||
|  |        LEFT JOIN               | ||
|  |        (t3, t4, t5) | ||
|  |        ON t2.b=t4.b | ||
|  |     WHERE (t3.a>1 OR t3.c IS NULL) AND  | ||
|  |           (t5.a<3 OR t5.c IS NULL); | ||
|  | 
 | ||
|  | SELECT t6.a,t6.b | ||
|  |   FROM t6; | ||
|  | 
 | ||
|  | SELECT t7.a,t7.b | ||
|  |   FROM t7; | ||
|  | 
 | ||
|  | SELECT t6.a,t6.b,t7.a,t7.b | ||
|  |   FROM t6,t7; | ||
|  | 
 | ||
|  | SELECT t8.a,t8.b | ||
|  |   FROM t8; | ||
|  | 
 | ||
|  | EXPLAIN EXTENDED | ||
|  | SELECT t6.a,t6.b,t7.a,t7.b,t8.a,t8.b | ||
|  |   FROM (t6, t7) | ||
|  |        LEFT JOIN  | ||
|  |        t8 | ||
|  |        ON t7.b=t8.b AND t6.b < 10; | ||
|  | 
 | ||
|  | SELECT t6.a,t6.b,t7.a,t7.b,t8.a,t8.b | ||
|  |   FROM (t6, t7) | ||
|  |        LEFT JOIN  | ||
|  |        t8 | ||
|  |        ON t7.b=t8.b AND t6.b < 10; | ||
|  | 
 | ||
|  | SELECT t5.a,t5.b | ||
|  |   FROM t5; | ||
|  | 
 | ||
|  | SELECT t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b | ||
|  |   FROM t5  | ||
|  |        LEFT JOIN  | ||
|  |        (  | ||
|  |          (t6, t7) | ||
|  |          LEFT JOIN  | ||
|  |          t8 | ||
|  |          ON t7.b=t8.b AND t6.b < 10 | ||
|  |        ) | ||
|  |        ON t6.b >= 2 AND t5.b=t7.b; | ||
|  | 
 | ||
|  | SELECT t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b | ||
|  |   FROM t5  | ||
|  |        LEFT JOIN  | ||
|  |        (  | ||
|  |          (t6, t7) | ||
|  |          LEFT JOIN  | ||
|  |          t8 | ||
|  |          ON t7.b=t8.b AND t6.b < 10 | ||
|  |        ) | ||
|  |        ON t6.b >= 2 AND t5.b=t7.b AND | ||
|  |           (t8.a < 1 OR t8.c IS NULL); | ||
|  | 
 | ||
|  | SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b | ||
|  |   FROM t2 | ||
|  |        LEFT JOIN               | ||
|  |        (t3, t4) | ||
|  |        ON t3.a=1 AND t2.b=t4.b; | ||
|  | 
 | ||
|  | SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b, | ||
|  |        t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b | ||
|  |   FROM t2 | ||
|  |        LEFT JOIN               | ||
|  |        (t3, t4) | ||
|  |        ON t3.a=1 AND t2.b=t4.b, | ||
|  |        t5  | ||
|  |        LEFT JOIN  | ||
|  |        (  | ||
|  |          (t6, t7) | ||
|  |          LEFT JOIN  | ||
|  |          t8 | ||
|  |          ON t7.b=t8.b AND t6.b < 10 | ||
|  |        ) | ||
|  |        ON t6.b >= 2 AND t5.b=t7.b;  | ||
|  | 
 | ||
|  | SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b, | ||
|  |        t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b | ||
|  |   FROM t2 | ||
|  |        LEFT JOIN               | ||
|  |        (t3, t4) | ||
|  |        ON t3.a=1 AND t2.b=t4.b, | ||
|  |        t5  | ||
|  |        LEFT JOIN  | ||
|  |        (  | ||
|  |          (t6, t7) | ||
|  |          LEFT JOIN  | ||
|  |          t8 | ||
|  |          ON t7.b=t8.b AND t6.b < 10 | ||
|  |        ) | ||
|  |        ON t6.b >= 2 AND t5.b=t7.b | ||
|  |     WHERE t2.a > 3 AND | ||
|  |           (t6.a < 6 OR t6.c IS NULL); | ||
|  | 
 | ||
|  | SELECT t1.a,t1.b | ||
|  |   FROM t1; | ||
|  | 
 | ||
|  | SELECT t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b, | ||
|  |        t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b | ||
|  |   FROM t1 | ||
|  |        LEFT JOIN                 | ||
|  |        (  | ||
|  |          t2 | ||
|  |          LEFT JOIN               | ||
|  |          (t3, t4) | ||
|  |          ON t3.a=1 AND t2.b=t4.b, | ||
|  |          t5  | ||
|  |          LEFT JOIN  | ||
|  |          (  | ||
|  |            (t6, t7) | ||
|  |            LEFT JOIN  | ||
|  |            t8 | ||
|  |            ON t7.b=t8.b AND t6.b < 10 | ||
|  |          ) | ||
|  |          ON t6.b >= 2 AND t5.b=t7.b  | ||
|  |        ) | ||
|  |        ON (t3.b=2 OR t3.c IS NULL) AND (t6.b=2 OR t6.c IS NULL) AND | ||
|  |           (t1.b=t5.b OR t3.c IS NULL OR t6.c IS NULL or t8.c IS NULL) AND | ||
|  |           (t1.a != 2); | ||
|  | 
 | ||
|  | SELECT t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b, | ||
|  |        t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b | ||
|  |   FROM t1 | ||
|  |        LEFT JOIN                 | ||
|  |        (  | ||
|  |          t2 | ||
|  |          LEFT JOIN               | ||
|  |          (t3, t4) | ||
|  |          ON t3.a=1 AND t2.b=t4.b, | ||
|  |          t5  | ||
|  |          LEFT JOIN  | ||
|  |          (  | ||
|  |            (t6, t7) | ||
|  |            LEFT JOIN  | ||
|  |            t8 | ||
|  |            ON t7.b=t8.b AND t6.b < 10 | ||
|  |          ) | ||
|  |          ON t6.b >= 2 AND t5.b=t7.b  | ||
|  |        ) | ||
|  |        ON (t3.b=2 OR t3.c IS NULL) AND (t6.b=2 OR t6.c IS NULL) AND | ||
|  |           (t1.b=t5.b OR t3.c IS NULL OR t6.c IS NULL or t8.c IS NULL) AND | ||
|  |           (t1.a != 2) | ||
|  |     WHERE (t2.a >= 4 OR t2.c IS NULL); | ||
|  |     | ||
|  | SELECT t0.a,t0.b | ||
|  |   FROM t0; | ||
|  | 
 | ||
|  | EXPLAIN EXTENDED | ||
|  | SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b, | ||
|  |        t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b | ||
|  |   FROM t0,t1 | ||
|  |        LEFT JOIN                 | ||
|  |        (  | ||
|  |          t2 | ||
|  |          LEFT JOIN               | ||
|  |          (t3, t4) | ||
|  |          ON t3.a=1 AND t2.b=t4.b, | ||
|  |          t5  | ||
|  |          LEFT JOIN  | ||
|  |          (  | ||
|  |            (t6, t7) | ||
|  |            LEFT JOIN  | ||
|  |            t8 | ||
|  |            ON t7.b=t8.b AND t6.b < 10 | ||
|  |          ) | ||
|  |          ON t6.b >= 2 AND t5.b=t7.b  | ||
|  |        ) | ||
|  |        ON (t3.b=2 OR t3.c IS NULL) AND (t6.b=2 OR t6.c IS NULL) AND | ||
|  |           (t1.b=t5.b OR t3.c IS NULL OR t6.c IS NULL or t8.c IS NULL) AND | ||
|  |           (t1.a != 2) | ||
|  |     WHERE t0.a=1 AND | ||
|  |           t0.b=t1.b AND           | ||
|  |           (t2.a >= 4 OR t2.c IS NULL);  | ||
|  | 
 | ||
|  | SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b, | ||
|  |        t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b | ||
|  |   FROM t0,t1 | ||
|  |        LEFT JOIN                 | ||
|  |        (  | ||
|  |          t2 | ||
|  |          LEFT JOIN               | ||
|  |          (t3, t4) | ||
|  |          ON t3.a=1 AND t2.b=t4.b, | ||
|  |          t5  | ||
|  |          LEFT JOIN  | ||
|  |          (  | ||
|  |            (t6, t7) | ||
|  |            LEFT JOIN  | ||
|  |            t8 | ||
|  |            ON t7.b=t8.b AND t6.b < 10 | ||
|  |          ) | ||
|  |          ON t6.b >= 2 AND t5.b=t7.b  | ||
|  |        ) | ||
|  |        ON (t3.b=2 OR t3.c IS NULL) AND (t6.b=2 OR t6.c IS NULL) AND | ||
|  |           (t1.b=t5.b OR t3.c IS NULL OR t6.c IS NULL or t8.c IS NULL) AND | ||
|  |           (t1.a != 2) | ||
|  |     WHERE t0.a=1 AND | ||
|  |           t0.b=t1.b AND           | ||
|  |           (t2.a >= 4 OR t2.c IS NULL);  | ||
|  | 
 | ||
|  | EXPLAIN EXTENDED | ||
|  | SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b, | ||
|  |        t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b,t9.a,t9.b | ||
|  |   FROM t0,t1 | ||
|  |        LEFT JOIN                 | ||
|  |        (  | ||
|  |          t2 | ||
|  |          LEFT JOIN               | ||
|  |          (t3, t4) | ||
|  |          ON t3.a=1 AND t2.b=t4.b, | ||
|  |          t5  | ||
|  |          LEFT JOIN  | ||
|  |          (  | ||
|  |            (t6, t7) | ||
|  |            LEFT JOIN  | ||
|  |            t8 | ||
|  |            ON t7.b=t8.b AND t6.b < 10 | ||
|  |          ) | ||
|  |          ON t6.b >= 2 AND t5.b=t7.b  | ||
|  |        ) | ||
|  |        ON (t3.b=2 OR t3.c IS NULL) AND (t6.b=2 OR t6.c IS NULL) AND | ||
|  |           (t1.b=t5.b OR t3.c IS NULL OR t6.c IS NULL or t8.c IS NULL) AND | ||
|  |           (t1.a != 2), | ||
|  |        t9 | ||
|  |      WHERE t0.a=1 AND | ||
|  |            t0.b=t1.b AND           | ||
|  |            (t2.a >= 4 OR t2.c IS NULL) AND | ||
|  |            (t3.a < 5 OR t3.c IS NULL) AND | ||
|  |            (t3.b=t4.b OR t3.c IS NULL OR t4.c IS NULL) AND | ||
|  |            (t5.a >=2 OR t5.c IS NULL) AND | ||
|  |            (t6.a >=4 OR t6.c IS NULL) AND | ||
|  |            (t7.a <= 2 OR t7.c IS NULL) AND | ||
|  |            (t8.a < 1 OR t8.c IS NULL) AND | ||
|  |            (t8.b=t9.b OR t8.c IS NULL) AND | ||
|  |            (t9.a=1);  | ||
|  | 
 | ||
|  | SELECT t9.a,t9.b | ||
|  |   FROM t9; | ||
|  | 
 | ||
|  | SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b, | ||
|  |        t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b,t9.a,t9.b | ||
|  |   FROM t0,t1 | ||
|  |        LEFT JOIN                 | ||
|  |        (  | ||
|  |          t2 | ||
|  |          LEFT JOIN               | ||
|  |          (t3, t4) | ||
|  |          ON t3.a=1 AND t2.b=t4.b, | ||
|  |          t5  | ||
|  |          LEFT JOIN  | ||
|  |          (  | ||
|  |            (t6, t7) | ||
|  |            LEFT JOIN  | ||
|  |            t8 | ||
|  |            ON t7.b=t8.b AND t6.b < 10 | ||
|  |          ) | ||
|  |          ON t6.b >= 2 AND t5.b=t7.b  | ||
|  |        ) | ||
|  |        ON (t3.b=2 OR t3.c IS NULL) AND (t6.b=2 OR t6.c IS NULL) AND | ||
|  |           (t1.b=t5.b OR t3.c IS NULL OR t6.c IS NULL or t8.c IS NULL) AND | ||
|  |           (t1.a != 2), | ||
|  |        t9 | ||
|  |      WHERE t0.a=1 AND | ||
|  |            t0.b=t1.b AND           | ||
|  |            (t2.a >= 4 OR t2.c IS NULL) AND | ||
|  |            (t3.a < 5 OR t3.c IS NULL) AND | ||
|  |            (t3.b=t4.b OR t3.c IS NULL OR t4.c IS NULL) AND | ||
|  |            (t5.a >=2 OR t5.c IS NULL) AND | ||
|  |            (t6.a >=4 OR t6.c IS NULL) AND | ||
|  |            (t7.a <= 2 OR t7.c IS NULL) AND | ||
|  |            (t8.a < 1 OR t8.c IS NULL) AND | ||
|  |            (t8.b=t9.b OR t8.c IS NULL) AND | ||
|  |            (t9.a=1);  | ||
|  | 
 | ||
|  | SELECT t1.a,t1.b | ||
|  |   FROM t1; | ||
|  | 
 | ||
|  | SELECT t2.a,t2.b | ||
|  |   FROM t2; | ||
|  | 
 | ||
|  | SELECT t3.a,t3.b | ||
|  |   FROM t3; | ||
|  | 
 | ||
|  | SELECT t2.a,t2.b,t3.a,t3.b | ||
|  |   FROM t2  | ||
|  |        LEFT JOIN               | ||
|  |        t3 | ||
|  |        ON t2.b=t3.b; | ||
|  | 
 | ||
|  | SELECT t1.a,t1.b,t2.a,t2.b,t3.a,t3.b | ||
|  |   FROM t1, t2  | ||
|  |        LEFT JOIN               | ||
|  |        t3 | ||
|  |        ON t2.b=t3.b | ||
|  |     WHERE t1.a <= 2; | ||
|  | 
 | ||
|  | SELECT t1.a,t1.b,t2.a,t2.b,t3.a,t3.b | ||
|  |   FROM t1, t3  | ||
|  |        RIGHT JOIN               | ||
|  |        t2 | ||
|  |        ON t2.b=t3.b | ||
|  |     WHERE t1.a <= 2; | ||
|  | 
 | ||
|  | SELECT t3.a,t3.b,t4.a,t4.b | ||
|  |   FROM t3,t4; | ||
|  | 
 | ||
|  | SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b | ||
|  |   FROM t2  | ||
|  |        LEFT JOIN               | ||
|  |        (t3, t4) | ||
|  |        ON t3.a=1 AND t2.b=t4.b; | ||
|  | 
 | ||
|  | SELECT t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b | ||
|  |   FROM t1, t2  | ||
|  |        LEFT JOIN               | ||
|  |        (t3, t4) | ||
|  |        ON t3.a=1 AND t2.b=t4.b | ||
|  |     WHERE t1.a <= 2; | ||
|  | 
 | ||
|  | SELECT t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b | ||
|  |   FROM t1, (t3, t4)  | ||
|  |        RIGHT JOIN               | ||
|  |        t2 | ||
|  |        ON t3.a=1 AND t2.b=t4.b | ||
|  |     WHERE t1.a <= 2; | ||
|  | 
 | ||
|  | SELECT t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b | ||
|  |   FROM t1, (t3, t4) | ||
|  |        RIGHT JOIN               | ||
|  |        t2 | ||
|  |        ON t3.a=1 AND t2.b=t4.b | ||
|  |     WHERE t1.a <= 2; | ||
|  | 
 | ||
|  | EXPLAIN EXTENDED | ||
|  | SELECT t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b | ||
|  |   FROM t1, (t3, t4) | ||
|  |        RIGHT JOIN | ||
|  |        t2 | ||
|  |        ON t3.a=1 AND t2.b=t4.b | ||
|  |     WHERE t1.a <= 2; | ||
|  | 
 | ||
|  | CREATE INDEX idx_b ON t2(b); | ||
|  | 
 | ||
|  | EXPLAIN EXTENDED | ||
|  | SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b | ||
|  |   FROM (t3,t4) | ||
|  |        LEFT JOIN               | ||
|  |        (t1,t2) | ||
|  |        ON t3.a=1 AND t3.b=t2.b AND t2.b=t4.b; | ||
|  | 
 | ||
|  | SELECT t2.a,t2.b,t3.a,t3.b,t4.a,t4.b | ||
|  |   FROM (t3,t4) | ||
|  |        LEFT JOIN               | ||
|  |        (t1,t2) | ||
|  |        ON t3.a=1 AND t3.b=t2.b AND t2.b=t4.b; | ||
|  | 
 | ||
|  | EXPLAIN EXTENDED | ||
|  | SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b, | ||
|  |        t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b,t9.a,t9.b | ||
|  |   FROM t0,t1 | ||
|  |        LEFT JOIN                 | ||
|  |        (  | ||
|  |          t2 | ||
|  |          LEFT JOIN               | ||
|  |          (t3, t4) | ||
|  |          ON t3.a=1 AND t2.b=t4.b, | ||
|  |          t5  | ||
|  |          LEFT JOIN  | ||
|  |          (  | ||
|  |            (t6, t7) | ||
|  |            LEFT JOIN  | ||
|  |            t8 | ||
|  |            ON t7.b=t8.b AND t6.b < 10 | ||
|  |          ) | ||
|  |          ON t6.b >= 2 AND t5.b=t7.b  | ||
|  |        ) | ||
|  |        ON (t3.b=2 OR t3.c IS NULL) AND (t6.b=2 OR t6.c IS NULL) AND | ||
|  |           (t1.b=t5.b OR t3.c IS NULL OR t6.c IS NULL or t8.c IS NULL) AND | ||
|  |           (t1.a != 2), | ||
|  |        t9 | ||
|  |      WHERE t0.a=1 AND | ||
|  |            t0.b=t1.b AND           | ||
|  |            (t2.a >= 4 OR t2.c IS NULL) AND | ||
|  |            (t3.a < 5 OR t3.c IS NULL) AND | ||
|  |            (t3.b=t4.b OR t3.c IS NULL OR t4.c IS NULL) AND | ||
|  |            (t5.a >=2 OR t5.c IS NULL) AND | ||
|  |            (t6.a >=4 OR t6.c IS NULL) AND | ||
|  |            (t7.a <= 2 OR t7.c IS NULL) AND | ||
|  |            (t8.a < 1 OR t8.c IS NULL) AND | ||
|  |            (t8.b=t9.b OR t8.c IS NULL) AND | ||
|  |            (t9.a=1);  | ||
|  | 
 | ||
|  | CREATE INDEX idx_b ON t4(b); | ||
|  | CREATE INDEX idx_b ON t5(b); | ||
|  | 
 | ||
|  | EXPLAIN EXTENDED | ||
|  | SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b, | ||
|  |        t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b,t9.a,t9.b | ||
|  |   FROM t0,t1 | ||
|  |        LEFT JOIN                 | ||
|  |        (  | ||
|  |          t2 | ||
|  |          LEFT JOIN               | ||
|  |          (t3, t4) | ||
|  |          ON t3.a=1 AND t2.b=t4.b, | ||
|  |          t5  | ||
|  |          LEFT JOIN  | ||
|  |          (  | ||
|  |            (t6, t7) | ||
|  |            LEFT JOIN  | ||
|  |            t8 | ||
|  |            ON t7.b=t8.b AND t6.b < 10 | ||
|  |          ) | ||
|  |          ON t6.b >= 2 AND t5.b=t7.b  | ||
|  |        ) | ||
|  |        ON (t3.b=2 OR t3.c IS NULL) AND (t6.b=2 OR t6.c IS NULL) AND | ||
|  |           (t1.b=t5.b OR t3.c IS NULL OR t6.c IS NULL or t8.c IS NULL) AND | ||
|  |           (t1.a != 2), | ||
|  |        t9 | ||
|  |      WHERE t0.a=1 AND | ||
|  |            t0.b=t1.b AND           | ||
|  |            (t2.a >= 4 OR t2.c IS NULL) AND | ||
|  |            (t3.a < 5 OR t3.c IS NULL) AND | ||
|  |            (t3.b=t4.b OR t3.c IS NULL OR t4.c IS NULL) AND | ||
|  |            (t5.a >=2 OR t5.c IS NULL) AND | ||
|  |            (t6.a >=4 OR t6.c IS NULL) AND | ||
|  |            (t7.a <= 2 OR t7.c IS NULL) AND | ||
|  |            (t8.a < 1 OR t8.c IS NULL) AND | ||
|  |            (t8.b=t9.b OR t8.c IS NULL) AND | ||
|  |            (t9.a=1);  | ||
|  | 
 | ||
|  | CREATE INDEX idx_b ON t8(b); | ||
|  | 
 | ||
|  | EXPLAIN EXTENDED | ||
|  | SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b, | ||
|  |        t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b,t9.a,t9.b | ||
|  |   FROM t0,t1 | ||
|  |        LEFT JOIN                 | ||
|  |        (  | ||
|  |          t2 | ||
|  |          LEFT JOIN               | ||
|  |          (t3, t4) | ||
|  |          ON t3.a=1 AND t2.b=t4.b, | ||
|  |          t5  | ||
|  |          LEFT JOIN  | ||
|  |          (  | ||
|  |            (t6, t7) | ||
|  |            LEFT JOIN  | ||
|  |            t8 | ||
|  |            ON t7.b=t8.b AND t6.b < 10 | ||
|  |          ) | ||
|  |          ON t6.b >= 2 AND t5.b=t7.b  | ||
|  |        ) | ||
|  |        ON (t3.b=2 OR t3.c IS NULL) AND (t6.b=2 OR t6.c IS NULL) AND | ||
|  |           (t1.b=t5.b OR t3.c IS NULL OR t6.c IS NULL or t8.c IS NULL) AND | ||
|  |           (t1.a != 2), | ||
|  |        t9 | ||
|  |      WHERE t0.a=1 AND | ||
|  |            t0.b=t1.b AND           | ||
|  |            (t2.a >= 4 OR t2.c IS NULL) AND | ||
|  |            (t3.a < 5 OR t3.c IS NULL) AND | ||
|  |            (t3.b=t4.b OR t3.c IS NULL OR t4.c IS NULL) AND | ||
|  |            (t5.a >=2 OR t5.c IS NULL) AND | ||
|  |            (t6.a >=4 OR t6.c IS NULL) AND | ||
|  |            (t7.a <= 2 OR t7.c IS NULL) AND | ||
|  |            (t8.a < 1 OR t8.c IS NULL) AND | ||
|  |            (t8.b=t9.b OR t8.c IS NULL) AND | ||
|  |            (t9.a=1);  | ||
|  | 
 | ||
|  | CREATE INDEX idx_b ON t1(b); | ||
|  | CREATE INDEX idx_a ON t0(a); | ||
|  | 
 | ||
|  | EXPLAIN EXTENDED | ||
|  | SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b, | ||
|  |        t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b,t9.a,t9.b | ||
|  |   FROM t0,t1 | ||
|  |        LEFT JOIN                 | ||
|  |        (  | ||
|  |          t2 | ||
|  |          LEFT JOIN               | ||
|  |          (t3, t4) | ||
|  |          ON t3.a=1 AND t2.b=t4.b, | ||
|  |          t5  | ||
|  |          LEFT JOIN  | ||
|  |          (  | ||
|  |            (t6, t7) | ||
|  |            LEFT JOIN  | ||
|  |            t8 | ||
|  |            ON t7.b=t8.b AND t6.b < 10 | ||
|  |          ) | ||
|  |          ON t6.b >= 2 AND t5.b=t7.b  | ||
|  |        ) | ||
|  |        ON (t3.b=2 OR t3.c IS NULL) AND (t6.b=2 OR t6.c IS NULL) AND | ||
|  |           (t1.b=t5.b OR t3.c IS NULL OR t6.c IS NULL or t8.c IS NULL) AND | ||
|  |           (t1.a != 2), | ||
|  |        t9 | ||
|  |      WHERE t0.a=1 AND | ||
|  |            t0.b=t1.b AND           | ||
|  |            (t2.a >= 4 OR t2.c IS NULL) AND | ||
|  |            (t3.a < 5 OR t3.c IS NULL) AND | ||
|  |            (t3.b=t4.b OR t3.c IS NULL OR t4.c IS NULL) AND | ||
|  |            (t5.a >=2 OR t5.c IS NULL) AND | ||
|  |            (t6.a >=4 OR t6.c IS NULL) AND | ||
|  |            (t7.a <= 2 OR t7.c IS NULL) AND | ||
|  |            (t8.a < 1 OR t8.c IS NULL) AND | ||
|  |            (t8.b=t9.b OR t8.c IS NULL) AND | ||
|  |            (t9.a=1);  | ||
|  | 
 | ||
|  | SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b, | ||
|  |        t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b,t9.a,t9.b | ||
|  |   FROM t0,t1 | ||
|  |        LEFT JOIN                 | ||
|  |        (  | ||
|  |          t2 | ||
|  |          LEFT JOIN               | ||
|  |          (t3, t4) | ||
|  |          ON t3.a=1 AND t2.b=t4.b, | ||
|  |          t5  | ||
|  |          LEFT JOIN  | ||
|  |          (  | ||
|  |            (t6, t7) | ||
|  |            LEFT JOIN  | ||
|  |            t8 | ||
|  |            ON t7.b=t8.b AND t6.b < 10 | ||
|  |          ) | ||
|  |          ON t6.b >= 2 AND t5.b=t7.b  | ||
|  |        ) | ||
|  |        ON (t3.b=2 OR t3.c IS NULL) AND (t6.b=2 OR t6.c IS NULL) AND | ||
|  |           (t1.b=t5.b OR t3.c IS NULL OR t6.c IS NULL or t8.c IS NULL) AND | ||
|  |           (t1.a != 2), | ||
|  |        t9 | ||
|  |      WHERE t0.a=1 AND | ||
|  |            t0.b=t1.b AND           | ||
|  |            (t2.a >= 4 OR t2.c IS NULL) AND | ||
|  |            (t3.a < 5 OR t3.c IS NULL) AND | ||
|  |            (t3.b=t4.b OR t3.c IS NULL OR t4.c IS NULL) AND | ||
|  |            (t5.a >=2 OR t5.c IS NULL) AND | ||
|  |            (t6.a >=4 OR t6.c IS NULL) AND | ||
|  |            (t7.a <= 2 OR t7.c IS NULL) AND | ||
|  |            (t8.a < 1 OR t8.c IS NULL) AND | ||
|  |            (t8.b=t9.b OR t8.c IS NULL) AND | ||
|  |            (t9.a=1);  | ||
|  | 
 | ||
|  | SELECT t2.a,t2.b | ||
|  |   FROM t2; | ||
|  | 
 | ||
|  | SELECT t3.a,t3.b | ||
|  |   FROM t3; | ||
|  | 
 | ||
|  | SELECT t2.a,t2.b,t3.a,t3.b | ||
|  |   FROM t2 LEFT JOIN t3 ON t2.b=t3.b | ||
|  |     WHERE t2.a = 4 OR (t2.a > 4 AND t3.a IS NULL); | ||
|  | 
 | ||
|  | SELECT t2.a,t2.b,t3.a,t3.b | ||
|  |   FROM t2 LEFT JOIN (t3) ON t2.b=t3.b | ||
|  |     WHERE t2.a = 4 OR (t2.a > 4 AND t3.a IS NULL); | ||
|  | 
 | ||
|  | ALTER TABLE t3 | ||
|  |   CHANGE COLUMN a a1 int, | ||
|  |   CHANGE COLUMN c c1 int;  | ||
|  | 
 | ||
|  | SELECT t2.a,t2.b,t3.a1,t3.b | ||
|  |   FROM t2 LEFT JOIN t3 ON t2.b=t3.b | ||
|  |     WHERE t2.a = 4 OR (t2.a > 4 AND t3.a1 IS NULL); | ||
|  | 
 | ||
|  | SELECT t2.a,t2.b,t3.a1,t3.b | ||
|  |   FROM t2 NATURAL LEFT JOIN t3 | ||
|  |     WHERE t2.a = 4 OR (t2.a > 4 AND t3.a1 IS NULL); | ||
|  | 
 | ||
|  | DROP TABLE t0,t1,t2,t3,t4,t5,t6,t7,t8,t9; | ||
|  | 
 | ||
|  | CREATE TABLE t1 (a int); | ||
|  | CREATE TABLE t2 (a int); | ||
|  | CREATE TABLE t3 (a int); | ||
|  | 
 | ||
|  | INSERT INTO t1 VALUES (1); | ||
|  | INSERT INTO t2 VALUES (2); | ||
|  | INSERT INTO t3 VALUES (2); | ||
|  | INSERT INTO t1 VALUES (2); | ||
|  | 
 | ||
|  | #check proper syntax for nested outer joins | ||
|  | 
 | ||
|  | SELECT * FROM t1 LEFT JOIN (t2 LEFT JOIN t3 ON t2.a=t3.a) ON t1.a=t3.a; | ||
|  | 
 | ||
|  | #must be equivalent to: | ||
|  | 
 | ||
|  | SELECT * FROM t1 LEFT JOIN t2 LEFT JOIN t3 ON t2.a=t3.a ON t1.a=t3.a; | ||
|  | 
 | ||
|  | #check that everything is al right when all tables contain not more than 1 row | ||
|  | #(bug #4922) | ||
|  | 
 | ||
|  | DELETE FROM t1 WHERE a=2; | ||
|  | SELECT * FROM t1 LEFT JOIN t2 LEFT JOIN t3 ON t2.a=t3.a ON t1.a=t3.a; | ||
|  | DELETE FROM t2; | ||
|  | SELECT * FROM t1 LEFT JOIN t2 LEFT JOIN t3 ON t2.a=t3.a ON t1.a=t3.a; | ||
|  | 
 | ||
|  | DROP TABLE t1,t2,t3; | ||
|  | 
 | ||
|  | #on expression for a nested outer join does not depend on the outer table | ||
|  | #bug #4976 | ||
|  | 
 | ||
|  | CREATE TABLE t1(a int, key (a));                                               | ||
|  | CREATE TABLE t2(b int, key (b));                                                | ||
|  | CREATE TABLE t3(c int, key (c));                                                | ||
|  | 
 | ||
|  | INSERT INTO t1 VALUES (NULL), (0), (1), (2), (3), (4), (5), (6), (7), (8), (9), | ||
|  | (10), (11), (12), (13), (14), (15), (16), (17), (18), (19); | ||
|  | 
 | ||
|  | INSERT INTO t2 VALUES (NULL), (0), (1), (2), (3), (4), (5), (6), (7), (8), (9), | ||
|  | (10), (11), (12), (13), (14), (15), (16), (17), (18), (19); | ||
|  | 
 | ||
|  | INSERT INTO t3 VALUES (0), (1), (2), (3), (4), (5); | ||
|  |   | ||
|  | EXPLAIN SELECT a, b, c FROM t1 LEFT JOIN (t2, t3) ON c < 3 and b = c; | ||
|  | EXPLAIN SELECT a, b, c FROM t1 LEFT JOIN (t2, t3) ON b < 3 and b = c; | ||
|  | SELECT a, b, c FROM t1 LEFT JOIN (t2, t3) ON b < 3 and b = c; | ||
|  | 
 | ||
|  | DELETE FROM t3; | ||
|  | EXPLAIN SELECT a, b, c FROM t1 LEFT JOIN (t2, t3) ON b < 3 and b = c; | ||
|  | SELECT a, b, c FROM t1 LEFT JOIN (t2, t3) ON b < 3 and b = c; | ||
|  | 
 | ||
|  | DROP TABLE t1,t2,t3; | ||
|  | 
 | ||
|  | # | ||
|  | # Test for bug #11284: empty table in a nested left join | ||
|  | #  | ||
|  | 
 | ||
|  | CREATE TABLE t1 (c11 int); | ||
|  | CREATE TABLE t2 (c21 int); | ||
|  | CREATE TABLE t3 (c31 int); | ||
|  | 
 | ||
|  | INSERT INTO t1 VALUES (4), (5); | ||
|  | 
 | ||
|  | SELECT * FROM t1 LEFT JOIN t2 ON c11=c21; | ||
|  | EXPLAIN SELECT * FROM t1 LEFT JOIN t2 ON c11=c21; | ||
|  | 
 | ||
|  | SELECT * FROM t1 LEFT JOIN (t2 LEFT JOIN t3 ON c21=c31) ON c11=c21; | ||
|  | EXPLAIN SELECT * FROM t1 LEFT JOIN (t2 LEFT JOIN t3 ON c21=c31) ON c11=c21; | ||
|  | 
 | ||
|  | DROP TABLE t1,t2,t3; | ||
|  | 
 | ||
|  | # | ||
|  | # Bug #12154: creation of temp table for a query with nested outer join | ||
|  | #  | ||
|  | 
 | ||
|  | CREATE TABLE t1 (goods int(12) NOT NULL, price varchar(128) NOT NULL); | ||
|  | INSERT INTO t1 VALUES (23, 2340), (26, 9900); | ||
|  | 
 | ||
|  | CREATE TABLE t2 (goods int(12), name varchar(50), shop char(2)); | ||
|  | INSERT INTO t2 VALUES (23, 'as300', 'fr'), (26, 'as600', 'fr'); | ||
|  | 
 | ||
|  | create table t3 (groupid int(12) NOT NULL, goodsid int(12) NOT NULL); | ||
|  | INSERT INTO t3 VALUES (3,23), (6,26); | ||
|  | 
 | ||
|  | CREATE TABLE t4 (groupid int(12)); | ||
|  | INSERT INTO t4 VALUES (1), (2), (3), (4), (5), (6); | ||
|  | 
 | ||
|  | SELECT * FROM | ||
|  | (SELECT DISTINCT gl.groupid, gp.price | ||
|  |   FROM t4 gl  | ||
|  |        LEFT JOIN | ||
|  |        (t3 g INNER JOIN t2 p ON g.goodsid = p.goods  | ||
|  |              INNER JOIN t1 gp ON p.goods = gp.goods) | ||
|  |        ON gl.groupid = g.groupid and p.shop = 'fr') t; | ||
|  | 
 | ||
|  | CREATE VIEW v1 AS | ||
|  | SELECT g.groupid groupid, p.goods goods,   | ||
|  |        p.name name, p.shop shop,  | ||
|  |        gp.price price | ||
|  |   FROM t3 g INNER JOIN t2 p ON g.goodsid = p.goods | ||
|  |             INNER JOIN t1 gp on p.goods = gp.goods; | ||
|  | 
 | ||
|  | CREATE VIEW v2 AS | ||
|  | SELECT DISTINCT g.groupid, fr.price | ||
|  |   FROM t4 g | ||
|  |        LEFT JOIN | ||
|  |        v1 fr on g.groupid = fr.groupid and fr.shop = 'fr'; | ||
|  | 
 | ||
|  | SELECT * FROM v2; | ||
|  | 
 | ||
|  | SELECT * FROM  | ||
|  | (SELECT DISTINCT g.groupid, fr.price | ||
|  |   FROM t4 g | ||
|  |        LEFT JOIN | ||
|  |        v1 fr on g.groupid = fr.groupid and fr.shop = 'fr') t; | ||
|  | 
 | ||
|  | DROP VIEW v1,v2; | ||
|  | DROP TABLE t1,t2,t3,t4; | ||
|  | 
 | ||
|  | # | ||
|  | # Bug #13545: problem with NATURAL/USING joins. | ||
|  | # | ||
|  | 
 | ||
|  | CREATE TABLE t1(a int); | ||
|  | CREATE TABLE t2(b int); | ||
|  | CREATE TABLE t3(c int, d int); | ||
|  | CREATE TABLE t4(d int); | ||
|  | CREATE TABLE t5(e int, f int); | ||
|  | CREATE TABLE t6(f int); | ||
|  | CREATE VIEW v1 AS  | ||
|  |   SELECT e FROM t5 JOIN t6 ON t5.e=t6.f; | ||
|  | CREATE VIEW v2 AS  | ||
|  |   SELECT e FROM t5 NATURAL JOIN t6; | ||
|  | 
 | ||
|  | SELECT t1.a FROM t1 JOIN t2 ON a=b JOIN t3 ON a=c JOIN t4 USING(d); | ||
|  | --error 1054 | ||
|  | SELECT t1.x FROM t1 JOIN t2 ON a=b JOIN t3 ON a=c JOIN t4 USING(d); | ||
|  | SELECT t1.a FROM t1 JOIN t2 ON a=b JOIN t3 ON a=c NATURAL JOIN t4; | ||
|  | --error 1054 | ||
|  | SELECT t1.x FROM t1 JOIN t2 ON a=b JOIN t3 ON a=c NATURAL JOIN t4; | ||
|  | SELECT v1.e FROM v1 JOIN t2 ON e=b JOIN t3 ON e=c JOIN t4 USING(d); | ||
|  | --error 1054 | ||
|  | SELECT v1.x FROM v1 JOIN t2 ON e=b JOIN t3 ON e=c JOIN t4 USING(d); | ||
|  | SELECT v2.e FROM v2 JOIN t2 ON e=b JOIN t3 ON e=c JOIN t4 USING(d); | ||
|  | --error 1054 | ||
|  | SELECT v2.x FROM v2 JOIN t2 ON e=b JOIN t3 ON e=c JOIN t4 USING(d); | ||
|  | 
 | ||
|  | DROP VIEW v1, v2; | ||
|  | DROP TABLE t1, t2, t3, t4, t5, t6; | ||
|  | 
 | ||
|  | # | ||
|  | # BUG#13126 -test case from bug report | ||
|  | # | ||
|  | create table t1 (id1 int(11) not null);  | ||
|  | insert into t1 values (1),(2); | ||
|  | 
 | ||
|  | create table t2 (id2 int(11) not null); | ||
|  | insert into t2 values (1),(2),(3),(4); | ||
|  | 
 | ||
|  | create table t3 (id3 char(16) not null); | ||
|  | insert into t3 values ('100'); | ||
|  | 
 | ||
|  | create table t4 (id2 int(11) not null, id3 char(16)); | ||
|  | 
 | ||
|  | create table t5 (id1 int(11) not null, key (id1)); | ||
|  | insert into t5 values (1),(2),(1); | ||
|  | 
 | ||
|  | create view v1 as | ||
|  |   select t4.id3 from t4 join t2 on t4.id2 = t2.id2; | ||
|  | 
 | ||
|  | select t1.id1 from t1 inner join (t3 left join v1 on t3.id3 = v1.id3); | ||
|  | 
 | ||
|  | drop view v1; | ||
|  | drop table t1, t2, t3, t4, t5; | ||
|  | 
 | ||
|  | create table t0 (a int); | ||
|  | insert into t0 values (0),(1),(2),(3); | ||
|  | create table t1(a int); | ||
|  | insert into t1 select A.a + 10*(B.a) from t0 A, t0 B; | ||
|  | 
 | ||
|  | create table t2 (a int, b int); | ||
|  | insert into t2 values (1,1), (2,2), (3,3); | ||
|  | 
 | ||
|  | create table t3(a int, b int, filler char(200), key(a)); | ||
|  | insert into t3 select a,a,'filler' from t1; | ||
|  | insert into t3 select a,a,'filler' from t1; | ||
|  | 
 | ||
|  | create table t4 like t3; | ||
|  | insert into t4 select * from t3; | ||
|  | insert into t4 select * from t3; | ||
|  | 
 | ||
|  | create table t5 like t4; | ||
|  | insert into t5 select * from t4; | ||
|  | insert into t5 select * from t4; | ||
|  | 
 | ||
|  | create table t6 like t5; | ||
|  | insert into t6 select * from t5; | ||
|  | insert into t6 select * from t5; | ||
|  | 
 | ||
|  | create table t7 like t6; | ||
|  | insert into t7 select * from t6; | ||
|  | insert into t7 select * from t6; | ||
|  | 
 | ||
|  | --replace_column 9 X | ||
|  | explain select * from t4 join  | ||
|  |   t2 left join (t3 join t5 on t5.a=t3.b) on t3.a=t2.b where t4.a<=>t3.b; | ||
|  | 
 | ||
|  | --replace_column 9 X | ||
|  | explain select * from (t4 join t6 on t6.a=t4.b) right join t3 on t4.a=t3.b | ||
|  |   join t2 left join (t5 join t7 on t7.a=t5.b) on t5.a=t2.b where t3.a<=>t2.b; | ||
|  | 
 | ||
|  | --replace_column 9 X | ||
|  | explain select * from t2 left join | ||
|  |   (t3 left join (t4 join t6 on t6.a=t4.b) on t4.a=t3.b  | ||
|  |    join t5 on t5.a=t3.b) on t3.a=t2.b; | ||
|  | 
 | ||
|  | drop table t0, t1, t2, t3, t4, t5, t6, t7; | ||
|  | 
 | ||
|  | # BUG#16393 | ||
|  | create table t1 (a int); | ||
|  | insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9); | ||
|  | create table t2 (a int, filler char(100), key(a)); | ||
|  | insert into t2 select A.a + 10*B.a, '' from t1 A, t1 B; | ||
|  | create table t3 like t2; | ||
|  | insert into t3 select * from t2; | ||
|  | 
 | ||
|  | explain select * from t1 left join  | ||
|  |   (t2 left join t3 on (t2.a = t3.a))  | ||
|  |   on (t1.a = t2.a); | ||
|  | drop table t1, t2, t3; | ||
|  | 
 | ||
|  | # | ||
|  | # Bug #16260: single row table in the inner nest of an outer join   | ||
|  | # | ||
|  | 
 | ||
|  | CREATE TABLE t1 (id int NOT NULL PRIMARY KEY, type varchar(10)); | ||
|  | CREATE TABLE t2 (pid int NOT NULL PRIMARY KEY, type varchar(10)); | ||
|  | CREATE TABLE t3 (cid int NOT NULL PRIMARY KEY, | ||
|  |                  id int NOT NULL, | ||
|  |                  pid int NOT NULL); | ||
|  | 
 | ||
|  | INSERT INTO t1 VALUES (1, 'A'), (3, 'C'); | ||
|  | INSERT INTO t2 VALUES (1, 'A'), (3, 'C'); | ||
|  | INSERT INTO t3 VALUES (1, 1, 1), (3, 3, 3); | ||
|  | 
 | ||
|  | SELECT * FROM t1 p LEFT JOIN (t3 JOIN t1) | ||
|  |                      ON (t1.id=t3.id AND t1.type='B' AND p.id=t3.id) | ||
|  |                    LEFT JOIN t2 ON (t3.pid=t2.pid) | ||
|  |   WHERE p.id=1; | ||
|  | 
 | ||
|  | CREATE VIEW v1 AS | ||
|  |   SELECT t3.* FROM t3 JOIN t1 ON t1.id=t3.id AND t1.type='B'; | ||
|  | 
 | ||
|  | SELECT * FROM t1 p LEFT JOIN v1 ON p.id=v1.id | ||
|  |                    LEFT JOIN t2 ON v1.pid=t2.pid | ||
|  |   WHERE p.id=1; | ||
|  | 
 | ||
|  | DROP VIEW v1; | ||
|  | DROP TABLE t1,t2,t3; | ||
|  | 
 | ||
|  | 
 | ||
|  | # | ||
|  | # Test for bug #18279: crash when on conditions are moved out of a nested join | ||
|  | #                      to the on conditions for the nest | ||
|  | 
 | ||
|  | CREATE TABLE t1 (id1 int PRIMARY KEY, id2 int); | ||
|  | CREATE TABLE t2 (id1 int PRIMARY KEY, id2 int); | ||
|  | CREATE TABLE t3 (id1 int PRIMARY KEY, id2 int); | ||
|  | CREATE TABLE t4 (id1 int PRIMARY KEY, id2 int); | ||
|  | CREATE TABLE t5 (id1 int PRIMARY KEY, id2 int); | ||
|  | 
 | ||
|  | SELECT t1.id1 AS id, t5.id1 AS ngroupbynsa | ||
|  |   FROM t1 INNER JOIN t2 ON t2.id2 = t1.id1 | ||
|  |        LEFT OUTER JOIN | ||
|  |        (t3 INNER JOIN t4 ON t4.id1 = t3.id2 INNER JOIN t5 ON t4.id2 = t5.id1) | ||
|  |        ON t3.id2 IS NOT NULL | ||
|  |     WHERE t1.id1=2; | ||
|  | 
 | ||
|  | PREPARE stmt FROM | ||
|  | "SELECT t1.id1 AS id, t5.id1 AS ngroupbynsa | ||
|  |   FROM t1 INNER JOIN t2 ON t2.id2 = t1.id1 | ||
|  |        LEFT OUTER JOIN | ||
|  |        (t3 INNER JOIN t4 ON t4.id1 = t3.id2 INNER JOIN t5 ON t4.id2 = t5.id1) | ||
|  |        ON t3.id2 IS NOT NULL | ||
|  |     WHERE t1.id1=2"; | ||
|  | 
 | ||
|  | EXECUTE stmt;  | ||
|  | EXECUTE stmt;  | ||
|  | EXECUTE stmt;  | ||
|  | EXECUTE stmt; | ||
|  | 
 | ||
|  | INSERT INTO t1 VALUES (1,1), (2,1), (3,2); | ||
|  | INSERT INTO t2 VALUES (2,1), (3,2), (4,3); | ||
|  | INSERT INTO t3 VALUES (1,1), (3,2), (2,NULL); | ||
|  | INSERT INTO t4 VALUES (1,1), (2,1), (3,3); | ||
|  | INSERT INTO t5 VALUES (1,1), (2,2), (3,3), (4,3); | ||
|  | 
 | ||
|  | EXECUTE stmt;  | ||
|  | EXECUTE stmt;  | ||
|  | EXECUTE stmt;  | ||
|  | EXECUTE stmt; | ||
|  | 
 | ||
|  | SELECT t1.id1 AS id, t5.id1 AS ngroupbynsa | ||
|  |   FROM t1 INNER JOIN t2 ON t2.id2 = t1.id1 | ||
|  |        LEFT OUTER JOIN | ||
|  |        (t3 INNER JOIN t4 ON t4.id1 = t3.id2 INNER JOIN t5 ON t4.id2 = t5.id1) | ||
|  |        ON t3.id2 IS NOT NULL | ||
|  |     WHERE t1.id1=2;  | ||
|  | 
 | ||
|  | DROP TABLE t1,t2,t3,t4,t5; | ||
|  | 
 | ||
|  | # | ||
|  | # Test for bug #24345: crash with nested left outer join when outer table is substituted | ||
|  | #                      for a row that happens to have a null value for the join attribute. | ||
|  | # | ||
|  | 
 | ||
|  | CREATE TABLE t1 ( | ||
|  |   id int NOT NULL PRIMARY KEY, | ||
|  |   ct int DEFAULT NULL, | ||
|  |   pc int DEFAULT NULL, | ||
|  |   INDEX idx_ct (ct), | ||
|  |   INDEX idx_pc (pc) | ||
|  | ); | ||
|  | INSERT INTO t1 VALUES   | ||
|  |  (1,NULL,NULL),(2,NULL,NULL),(3,NULL,NULL),(4,NULL,NULL),(5,NULL,NULL); | ||
|  | 
 | ||
|  | CREATE TABLE t2 ( | ||
|  |   id int NOT NULL PRIMARY KEY, | ||
|  |   sr int NOT NULL, | ||
|  |   nm varchar(255) NOT NULL, | ||
|  |   INDEX idx_sr (sr) | ||
|  | ); | ||
|  | INSERT INTO t2 VALUES | ||
|  |   (2441905,4308,'LesAbymes'),(2441906,4308,'Anse-Bertrand'); | ||
|  | 
 | ||
|  | CREATE TABLE t3 ( | ||
|  |   id int NOT NULL PRIMARY KEY, | ||
|  |   ct int NOT NULL, | ||
|  |   ln int NOT NULL, | ||
|  |   INDEX idx_ct (ct), | ||
|  |   INDEX idx_ln (ln) | ||
|  | ); | ||
|  | 
 | ||
|  | CREATE TABLE t4 ( | ||
|  |   id int NOT NULL PRIMARY KEY, | ||
|  |   nm varchar(255) NOT NULL | ||
|  | ); | ||
|  | 
 | ||
|  | INSERT INTO t4 VALUES (4308,'Guadeloupe'),(4309,'Martinique'); | ||
|  | 
 | ||
|  | SELECT t1.* | ||
|  |   FROM t1 LEFT JOIN | ||
|  |        (t2 LEFT JOIN t3 ON t3.ct=t2.id AND t3.ln='5') ON t1.ct=t2.id | ||
|  |     WHERE t1.id='5'; | ||
|  | 
 | ||
|  | SELECT t1.*, t4.nm | ||
|  |   FROM t1 LEFT JOIN | ||
|  |       (t2 LEFT JOIN t3 ON t3.ct=t2.id AND t3.ln='5') ON t1.ct=t2.id | ||
|  |           LEFT JOIN t4 ON t2.sr=t4.id | ||
|  |     WHERE t1.id='5'; | ||
|  | 
 | ||
|  | DROP TABLE t1,t2,t3,t4; | ||
|  | 
 | ||
|  | # | ||
|  | # BUG#25575: ERROR 1052 (Column in from clause is ambiguous) with sub-join | ||
|  | # | ||
|  | CREATE TABLE t1 (a INT, b INT); | ||
|  | CREATE TABLE t2 (a INT); | ||
|  | CREATE TABLE t3 (a INT, c INT); | ||
|  | CREATE TABLE t4 (a INT, c INT); | ||
|  | CREATE TABLE t5 (a INT, c INT); | ||
|  | 
 | ||
|  | SELECT b FROM t1 JOIN (t2 LEFT JOIN t3 USING (a) LEFT JOIN t4 USING (a) | ||
|  | LEFT JOIN t5 USING (a)) USING (a); | ||
|  | 
 | ||
|  | --error ER_NON_UNIQ_ERROR | ||
|  | SELECT c FROM t1 JOIN (t2 LEFT JOIN t3 USING (a) LEFT JOIN t4 USING (a) | ||
|  | LEFT JOIN t5 USING (a)) USING (a); | ||
|  | 
 | ||
|  | SELECT b FROM t1 JOIN (t2 JOIN t3 USING (a) JOIN t4 USING (a) | ||
|  | JOIN t5 USING (a)) USING (a); | ||
|  | 
 | ||
|  | --error ER_NON_UNIQ_ERROR | ||
|  | SELECT c FROM t1 JOIN (t2 JOIN t3 USING (a) JOIN t4 USING (a) | ||
|  | JOIN t5 USING (a)) USING (a); | ||
|  | 
 | ||
|  | DROP TABLE t1,t2,t3,t4,t5; | ||
|  | CREATE TABLE t1 (a INT, b INT); | ||
|  | CREATE TABLE t2 (a INT, b INT); | ||
|  | CREATE TABLE t3 (a INT, b INT); | ||
|  | 
 | ||
|  | INSERT INTO t1 VALUES (1,1); | ||
|  | INSERT INTO t2 VALUES (1,1); | ||
|  | INSERT INTO t3 VALUES (1,1); | ||
|  | 
 | ||
|  | --error ER_NON_UNIQ_ERROR | ||
|  | SELECT * FROM t1 JOIN (t2 JOIN t3 USING (b)) USING (a); | ||
|  | 
 | ||
|  | DROP TABLE t1,t2,t3; | ||
|  | 
 | ||
|  | # | ||
|  | # BUG#29604: inner nest of left join interleaves with outer tables | ||
|  | # | ||
|  | 
 | ||
|  | CREATE TABLE t1 ( | ||
|  |   carrier char(2) default NULL, | ||
|  |   id int NOT NULL auto_increment PRIMARY KEY | ||
|  | ); | ||
|  | INSERT INTO t1 VALUES | ||
|  |   ('CO',235371754),('CO',235376554),('CO',235376884),('CO',235377874), | ||
|  |   ('CO',231060394),('CO',231059224),('CO',231059314),('CO',231060484), | ||
|  |   ('CO',231060274),('CO',231060124),('CO',231060244),('CO',231058594), | ||
|  |   ('CO',231058924),('CO',231058504),('CO',231059344),('CO',231060424), | ||
|  |   ('CO',231059554),('CO',231060304),('CO',231059644),('CO',231059464), | ||
|  |   ('CO',231059764),('CO',231058294),('CO',231058624),('CO',231058864), | ||
|  |   ('CO',231059374),('CO',231059584),('CO',231059734),('CO',231059014), | ||
|  |   ('CO',231059854),('CO',231059494),('CO',231059794),('CO',231058534), | ||
|  |   ('CO',231058324),('CO',231058684),('CO',231059524),('CO',231059974); | ||
|  | 
 | ||
|  | CREATE TABLE t2 ( | ||
|  |   scan_date date default NULL, | ||
|  |   package_id int default NULL, | ||
|  |   INDEX scan_date(scan_date), | ||
|  |   INDEX package_id(package_id) | ||
|  | ); | ||
|  | INSERT INTO t2 VALUES | ||
|  |   ('2008-12-29',231062944),('2008-12-29',231065764),('2008-12-29',231066124), | ||
|  |   ('2008-12-29',231060094),('2008-12-29',231061054),('2008-12-29',231065644), | ||
|  |   ('2008-12-29',231064384),('2008-12-29',231064444),('2008-12-29',231073774), | ||
|  |   ('2008-12-29',231058594),('2008-12-29',231059374),('2008-12-29',231066004), | ||
|  |   ('2008-12-29',231068494),('2008-12-29',231070174),('2008-12-29',231071884), | ||
|  |   ('2008-12-29',231063274),('2008-12-29',231063754),('2008-12-29',231064144), | ||
|  |   ('2008-12-29',231069424),('2008-12-29',231073714),('2008-12-29',231058414), | ||
|  |   ('2008-12-29',231060994),('2008-12-29',231069154),('2008-12-29',231068614), | ||
|  |   ('2008-12-29',231071464),('2008-12-29',231074014),('2008-12-29',231059614), | ||
|  |   ('2008-12-29',231059074),('2008-12-29',231059464),('2008-12-29',231069094), | ||
|  |   ('2008-12-29',231067294),('2008-12-29',231070144),('2008-12-29',231073804), | ||
|  |   ('2008-12-29',231072634),('2008-12-29',231058294),('2008-12-29',231065344), | ||
|  |   ('2008-12-29',231066094),('2008-12-29',231069034),('2008-12-29',231058594), | ||
|  |   ('2008-12-29',231059854),('2008-12-29',231059884),('2008-12-29',231059914), | ||
|  |   ('2008-12-29',231063664),('2008-12-29',231063814),('2008-12-29',231063904); | ||
|  | 
 | ||
|  | CREATE TABLE t3 ( | ||
|  |   package_id int default NULL, | ||
|  |   INDEX package_id(package_id) | ||
|  | ); | ||
|  | INSERT INTO t3 VALUES | ||
|  |   (231058294),(231058324),(231058354),(231058384),(231058414),(231058444), | ||
|  |   (231058474),(231058504),(231058534),(231058564),(231058594),(231058624), | ||
|  |   (231058684),(231058744),(231058804),(231058864),(231058924),(231058954), | ||
|  |   (231059014),(231059074),(231059104),(231059134),(231059164),(231059194), | ||
|  |   (231059224),(231059254),(231059284),(231059314),(231059344),(231059374), | ||
|  |   (231059404),(231059434),(231059464),(231059494),(231059524),(231059554), | ||
|  |   (231059584),(231059614),(231059644),(231059674),(231059704),(231059734), | ||
|  |   (231059764),(231059794),(231059824),(231059854),(231059884),(231059914), | ||
|  |   (231059944),(231059974),(231060004),(231060034),(231060064),(231060094), | ||
|  |   (231060124),(231060154),(231060184),(231060214),(231060244),(231060274), | ||
|  |   (231060304),(231060334),(231060364),(231060394),(231060424),(231060454), | ||
|  |   (231060484),(231060514),(231060544),(231060574),(231060604),(231060634), | ||
|  |   (231060664),(231060694),(231060724),(231060754),(231060784),(231060814), | ||
|  |   (231060844),(231060874),(231060904),(231060934),(231060964),(231060994), | ||
|  |   (231061024),(231061054),(231061084),(231061144),(231061174),(231061204), | ||
|  |   (231061234),(231061294),(231061354),(231061384),(231061414),(231061474), | ||
|  |   (231061564),(231061594),(231061624),(231061684),(231061714),(231061774), | ||
|  |   (231061804),(231061894),(231061984),(231062074),(231062134),(231062224), | ||
|  |   (231062254),(231062314),(231062374),(231062434),(231062494),(231062554), | ||
|  |   (231062584),(231062614),(231062644),(231062704),(231062734),(231062794), | ||
|  |   (231062854),(231062884),(231062944),(231063004),(231063034),(231063064), | ||
|  |   (231063124),(231063154),(231063184),(231063214),(231063274),(231063334), | ||
|  |   (231063394),(231063424),(231063454),(231063514),(231063574),(231063664); | ||
|  |   | ||
|  | CREATE TABLE t4 ( | ||
|  |   carrier char(2) NOT NULL default '' PRIMARY KEY, | ||
|  |   id int(11) default NULL, | ||
|  |   INDEX id(id) | ||
|  | ); | ||
|  | INSERT INTO t4 VALUES | ||
|  |   ('99',6),('SK',456),('UA',486),('AI',1081),('OS',1111),('VS',1510); | ||
|  | 
 | ||
|  | CREATE TABLE t5 ( | ||
|  |   carrier_id int default NULL, | ||
|  |   INDEX carrier_id(carrier_id) | ||
|  | ); | ||
|  | INSERT INTO t5 VALUES | ||
|  |   (6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6), | ||
|  |   (6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6), | ||
|  |   (6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6), | ||
|  |   (6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6), | ||
|  |   (6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6), | ||
|  |   (6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(6),(456),(456),(456), | ||
|  |   (456),(456),(456),(456),(456),(456),(456),(456),(456),(456),(456),(456), | ||
|  |   (456),(486),(1081),(1111),(1111),(1111),(1111),(1510); | ||
|  | 
 | ||
|  | SELECT COUNT(*)  | ||
|  |   FROM((t2 JOIN t1 ON t2.package_id = t1.id)  | ||
|  |         JOIN t3 ON t3.package_id = t1.id); | ||
|  | 
 | ||
|  | EXPLAIN | ||
|  | SELECT COUNT(*)  | ||
|  |   FROM ((t2 JOIN t1 ON t2.package_id = t1.id)  | ||
|  |          JOIN t3 ON t3.package_id = t1.id) | ||
|  |        LEFT JOIN  | ||
|  |        (t5 JOIN t4 ON t5.carrier_id = t4.id) | ||
|  |        ON t4.carrier = t1.carrier; | ||
|  | SELECT COUNT(*)  | ||
|  |   FROM ((t2 JOIN t1 ON t2.package_id = t1.id)  | ||
|  |         JOIN t3 ON t3.package_id = t1.id) | ||
|  |        LEFT JOIN  | ||
|  |        (t5 JOIN t4 ON t5.carrier_id = t4.id) | ||
|  |        ON t4.carrier = t1.carrier; | ||
|  | 
 | ||
|  | DROP TABLE t1,t2,t3,t4,t5; | ||
|  | 
 | ||
|  | --echo End of 5.0 tests | ||
|  | 
 |