3
SET @session_sql_big_selects = @@SESSION.sql_big_selects;
4
SET @session_max_join_size = @@SESSION.max_join_size;
5
SET @global_max_join_size = @@GLOBAL.max_join_size;
6
SET SQL_MAX_JOIN_SIZE=9;
7
CREATE TEMPORARY TABLE t1(a varchar(20) not null, b varchar(20));
8
CREATE TEMPORARY TABLE t2(a varchar(20) null, b varchar(20));
9
INSERT INTO t1 VALUES('aa','bb');
10
INSERT INTO t1 VALUES('aa1','bb');
11
INSERT INTO t1 VALUES('aa2','bb');
12
INSERT INTO t1 VALUES('aa3','bb');
13
INSERT INTO t1 VALUES('aa4','bb');
14
INSERT INTO t2 VALUES('aa','bb');
15
INSERT INTO t2 VALUES('aa1','bb');
16
INSERT INTO t2 VALUES('aa2','bb');
17
INSERT INTO t2 VALUES('aa3','bb');
18
INSERT INTO t2 VALUES('aa4','bb');
19
'#--------------------FN_DYNVARS_154_01-------------------------#'
20
Expected error "Too big select"
21
SELECT * FROM t1 INNER JOIN t2 ON t1.a = t2.a;
22
ERROR 42000: The SELECT would examine more than MAX_JOIN_SIZE rows; check your WHERE and use SET SQL_BIG_SELECTS=1 or SET SQL_MAX_JOIN_SIZE=# if the SELECT is okay
23
Expected error The SELECT would examine more than MAX_JOIN_SIZE rows.
24
'#--------------------FN_DYNVARS_154_02-------------------------#'
25
SET SESSION SQL_BIG_SELECTS = 1;
26
SELECT * FROM t1 INNER JOIN t2 ON t1.a = t2.a;
34
SET SESSION SQL_BIG_SELECTS = 0;
35
DELETE FROM t2 WHERE a = 'aa4';
36
SELECT * FROM t1 INNER JOIN t2 ON t1.a = t2.a;
43
'#--------------------FN_DYNVARS_154_03-------------------------#'
44
** Connecting con_int1 using root **
45
** Connection con_int1 **
46
SELECT @@SESSION.sql_big_selects;
47
@@SESSION.sql_big_selects
50
SET SESSION sql_big_selects = 0;
51
** Connecting con_int2 using root **
52
** Connection con_int2 **
53
SELECT @@SESSION.sql_big_selects;
54
@@SESSION.sql_big_selects
57
SET SESSION sql_big_selects = 1;
58
** Connection con_int1 **
59
SELECT @@SESSION.sql_big_selects;
60
@@SESSION.sql_big_selects
63
** Connection con_int2 **
64
SELECT @@SESSION.sql_big_selects;
65
@@SESSION.sql_big_selects
68
** Connection default **
69
Disconnecting Connections con_int1, con_int2
70
SET @@SESSION.sql_big_selects = @session_sql_big_selects;
71
SET @@SESSION.max_join_size = @session_max_join_size;
72
SET @@GLOBAL.max_join_size = @global_max_join_size;