2
# Test of MEMORY tables.
6
6
drop table if exists t1,t2;
9
create temporary table t1 (a int not null,b int not null, primary key using HASH (a)) engine=MEMORY comment="testing heaps";
9
create table t1 (a int not null,b int not null, primary key using HASH (a)) engine=heap comment="testing heaps" avg_row_length=100 min_rows=1 max_rows=100;
10
10
insert into t1 values(1,1),(2,2),(3,3),(4,4);
11
11
delete from t1 where a=1 or a=0;
12
12
#show table status like "t1";
20
20
alter table t1 add c int not null, add key using HASH (c,a);
23
create temporary table t1 (a int not null,b int not null, primary key using HASH (a)) engine=MEMORY comment="testing heaps";
23
create table t1 (a int not null,b int not null, primary key using HASH (a)) engine=heap comment="testing heaps";
24
24
insert into t1 values(1,1),(2,2),(3,3),(4,4);
25
25
delete from t1 where a > 0;
29
create temporary table t1 (a int not null,b int not null, primary key using HASH (a)) engine=MEMORY comment="testing heaps";
29
create table t1 (a int not null,b int not null, primary key using HASH (a)) engine=heap comment="testing heaps";
30
30
insert into t1 values(1,1),(2,2),(3,3),(4,4);
31
alter table t1 modify a int not null auto_increment, engine=innodb, comment="new innodb table";
31
alter table t1 modify a int not null auto_increment, engine=myisam, comment="new myisam table";
32
32
#show table status like "t1";
36
create temporary table t1 (a int not null) engine=MEMORY;
36
create table t1 (a int not null) engine=heap;
37
37
insert into t1 values (869751),(736494),(226312),(802616),(728912);
38
38
select * from t1 where a > 736494;
39
39
alter table t1 add unique uniq_id using HASH (a);
41
41
select * from t1 where a = 736494;
42
42
select * from t1 where a=869751 or a=736494;
43
43
select * from t1 where a in (869751,736494,226312,802616);
44
alter table t1 engine=innodb;
44
alter table t1 engine=myisam;
45
45
explain select * from t1 where a in (869751,736494,226312,802616);
48
create temporary table t1 (x int not null, y int not null, key x using HASH (x), unique y using HASH (y))
48
create table t1 (x int not null, y int not null, key x using HASH (x), unique y using HASH (y))
50
50
insert into t1 values (1,1),(2,2),(1,3),(2,4),(2,5),(2,6);
51
51
select * from t1 where x=1;
52
52
select * from t1,t1 as t2 where t1.x=t2.y;
53
53
explain select * from t1,t1 as t2 where t1.x=t2.y;
56
create temporary table t1 (a int) engine=MEMORY;
56
create table t1 (a int) engine=heap;
57
57
insert into t1 values(1);
58
58
select max(a) from t1;
61
CREATE TEMPORARY TABLE t1 ( a int not null default 0, b int not null default 0, key using HASH (a), key using HASH (b) ) ENGINE=MEMORY;
61
CREATE TABLE t1 ( a int not null default 0, b int not null default 0, key using HASH (a), key using HASH (b) ) ENGINE=HEAP;
62
62
insert into t1 values(1,1),(1,2),(2,3),(1,3),(1,4),(1,5),(1,6);
63
63
select * from t1 where a=1;
64
64
insert into t1 values(1,1),(1,2),(2,3),(1,3),(1,4),(1,5),(1,6);
65
65
select * from t1 where a=1;
68
create temporary table t1 (id int not null, primary key using HASH (id)) engine=MEMORY;
68
create table t1 (id int unsigned not null, primary key using HASH (id)) engine=HEAP;
69
69
insert into t1 values(1);
70
70
select max(id) from t1;
71
71
insert into t1 values(2);
75
73
replace into t1 values(1);
78
create temporary table t1 (n int) engine=MEMORY;
76
create table t1 (n int) engine=heap;
81
create temporary table t1 (n int) engine=MEMORY;
79
create table t1 (n int) engine=heap;
82
80
drop table if exists t1;
84
82
# Test of non unique index
86
CREATE TEMPORARY table t1(f1 int not null,f2 char(20) not
87
null,index(f2)) engine=MEMORY;
84
CREATE table t1(f1 int not null,f2 char(20) not
85
null,index(f2)) engine=heap;
88
86
INSERT into t1 set f1=12,f2="bill";
89
87
INSERT into t1 set f1=13,f2="bill";
90
88
INSERT into t1 set f1=14,f2="bill";
102
100
# Test when using part key searches
105
create temporary table t1 (btn char(10) not null, key using HASH (btn)) engine=MEMORY;
103
create table t1 (btn char(10) not null, key using HASH (btn)) engine=heap;
106
104
insert into t1 values ("hello"),("hello"),("hello"),("hello"),("hello"),("a"),("b"),("c"),("d"),("e"),("f"),("g"),("h"),("i");
107
105
explain select * from t1 where btn like "q%";
108
106
select * from t1 where btn like "q%";
116
114
# Test of NULL keys
119
CREATE TEMPORARY TABLE t1 (
120
118
a int default NULL,
121
119
b int default NULL,
122
120
KEY a using HASH (a),
123
121
UNIQUE b using HASH (b)
125
123
INSERT INTO t1 VALUES (NULL,99),(99,NULL),(1,1),(2,2),(1,3);
126
124
SELECT * FROM t1 WHERE a=NULL;
127
125
explain SELECT * FROM t1 WHERE a IS NULL;
138
136
# Test when deleting all rows
141
CREATE TEMPORARY TABLE t1 (a int not null, primary key using HASH (a)) engine=MEMORY;
139
CREATE TABLE t1 (a int not null, primary key using HASH (a)) engine=heap;
142
140
INSERT into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10),(11);
143
141
DELETE from t1 where a < 100;
144
142
SELECT * from t1;
200
197
# Btree and hash index use costs.
201
create temporary table t1 (
202
id int not null primary key auto_increment,
199
id int unsigned not null primary key auto_increment,
203
200
name varchar(20) not null,
204
201
index heap_idx(name),
205
202
index btree_idx using btree(name)
208
create temporary table t2 (
209
id int not null primary key auto_increment,
206
id int unsigned not null primary key auto_increment,
210
207
name varchar(20) not null,
211
208
index btree_idx using btree(name),
212
209
index heap_idx(name)
215
212
insert into t1 (name) values ('Matt'), ('Lilu'), ('Corbin'), ('Carly'),
216
213
('Suzy'), ('Hoppy'), ('Burrito'), ('Mimi'), ('Sherry'), ('Ben'), ('Phil'),
271
268
# Check that HASH indexes disregard trailing spaces when comparing
272
269
# strings with binary collations
274
CREATE TEMPORARY TABLE t1(col1 VARCHAR(32) COLLATE utf8_bin NOT NULL,
275
col2 VARCHAR(32) COLLATE utf8_bin NOT NULL,
271
CREATE TABLE t1(col1 VARCHAR(32) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
272
col2 VARCHAR(32) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
276
273
UNIQUE KEY key1 USING HASH (col1, col2)) ENGINE=MEMORY;
277
274
INSERT INTO t1 VALUES('A', 'A');
278
275
--error ER_DUP_ENTRY
279
276
INSERT INTO t1 VALUES('A ', 'A ');
281
CREATE TEMPORARY TABLE t1(col1 VARCHAR(32) COLLATE utf8_bin NOT NULL,
282
col2 VARCHAR(32) COLLATE utf8_bin NOT NULL,
278
CREATE TABLE t1(col1 VARCHAR(32) CHARACTER SET latin1 COLLATE latin1_bin NOT NULL,
279
col2 VARCHAR(32) CHARACTER SET latin1 COLLATE latin1_bin NOT NULL,
283
280
UNIQUE KEY key1 USING HASH (col1, col2)) ENGINE=MEMORY;
284
281
INSERT INTO t1 VALUES('A', 'A');
285
282
--error ER_DUP_ENTRY