diff options
Diffstat (limited to 'mysql-test/r/select.result')
-rw-r--r-- | mysql-test/r/select.result | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/mysql-test/r/select.result b/mysql-test/r/select.result index c1aa5704f56..f8df72c6709 100644 --- a/mysql-test/r/select.result +++ b/mysql-test/r/select.result @@ -4796,4 +4796,83 @@ SELECT 1 FROM t1 ORDER BY a COLLATE latin1_german2_ci; 1 1 DROP TABLE t1; +# +# Bug #702310: usage of 2 join buffers after ref access to an empty table +# +CREATE TABLE t1 (f1 int) ; +INSERT INTO t1 VALUES (9); +CREATE TABLE t2 (f1 int); +INSERT INTO t2 VALUES (3),(7),(18); +INSERT INTO t2 VALUES (3),(7),(18); +INSERT INTO t2 VALUES (3),(7),(18); +INSERT INTO t2 VALUES (3),(7),(18); +CREATE TABLE t3 (f1 int); +INSERT INTO t3 VALUES (17); +CREATE TABLE t4 (f1 int PRIMARY KEY, f2 varchar(1024)) ; +CREATE TABLE t5 (f1 int) ; +INSERT INTO t5 VALUES (20),(5); +CREATE TABLE t6(f1 int); +INSERT INTO t6 VALUES (9),(7); +SET SESSION join_buffer_size = 9000; +EXPLAIN +SELECT STRAIGHT_JOIN * FROM t2, (t1 LEFT JOIN (t3,t4) ON t1.f1 = t4.f1), t5, t6; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 system NULL NULL NULL NULL 1 +1 SIMPLE t2 ALL NULL NULL NULL NULL 12 +1 SIMPLE t3 ALL NULL NULL NULL NULL 1 +1 SIMPLE t4 eq_ref PRIMARY PRIMARY 4 const 1 +1 SIMPLE t5 ALL NULL NULL NULL NULL 2 Using join buffer +1 SIMPLE t6 ALL NULL NULL NULL NULL 2 Using join buffer +SELECT STRAIGHT_JOIN * FROM t2, (t1 LEFT JOIN (t3,t4) ON t1.f1 = t4.f1), t5, t6; +f1 f1 f1 f1 f2 f1 f1 +3 9 NULL NULL NULL 20 9 +7 9 NULL NULL NULL 20 9 +18 9 NULL NULL NULL 20 9 +3 9 NULL NULL NULL 20 9 +7 9 NULL NULL NULL 20 9 +18 9 NULL NULL NULL 20 9 +3 9 NULL NULL NULL 20 9 +3 9 NULL NULL NULL 20 7 +7 9 NULL NULL NULL 20 7 +18 9 NULL NULL NULL 20 7 +3 9 NULL NULL NULL 20 7 +7 9 NULL NULL NULL 20 7 +18 9 NULL NULL NULL 20 7 +3 9 NULL NULL NULL 20 7 +3 9 NULL NULL NULL 5 9 +7 9 NULL NULL NULL 5 9 +18 9 NULL NULL NULL 5 9 +3 9 NULL NULL NULL 5 9 +7 9 NULL NULL NULL 5 9 +18 9 NULL NULL NULL 5 9 +3 9 NULL NULL NULL 5 9 +3 9 NULL NULL NULL 5 7 +7 9 NULL NULL NULL 5 7 +18 9 NULL NULL NULL 5 7 +3 9 NULL NULL NULL 5 7 +7 9 NULL NULL NULL 5 7 +18 9 NULL NULL NULL 5 7 +3 9 NULL NULL NULL 5 7 +7 9 NULL NULL NULL 20 9 +18 9 NULL NULL NULL 20 9 +3 9 NULL NULL NULL 20 9 +7 9 NULL NULL NULL 20 9 +18 9 NULL NULL NULL 20 9 +7 9 NULL NULL NULL 5 9 +18 9 NULL NULL NULL 5 9 +7 9 NULL NULL NULL 20 7 +18 9 NULL NULL NULL 20 7 +3 9 NULL NULL NULL 20 7 +7 9 NULL NULL NULL 20 7 +18 9 NULL NULL NULL 20 7 +7 9 NULL NULL NULL 5 7 +18 9 NULL NULL NULL 5 7 +3 9 NULL NULL NULL 5 9 +7 9 NULL NULL NULL 5 9 +18 9 NULL NULL NULL 5 9 +3 9 NULL NULL NULL 5 7 +7 9 NULL NULL NULL 5 7 +18 9 NULL NULL NULL 5 7 +SET SESSION join_buffer_size = DEFAULT; +DROP TABLE t1,t2,t3,t4,t5,t6; End of 5.1 tests |