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359 lines
11 KiB
Text
359 lines
11 KiB
Text
#
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# Test of heap tables.
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#
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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;
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insert into t1 values(1,1),(2,2),(3,3),(4,4);
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delete from t1 where a=1 or a=0;
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#show table status like "t1";
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show keys from t1;
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select * from t1;
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select * from t1 where a=4;
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update t1 set b=5 where a=4;
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update t1 set b=b+1 where a>=3;
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replace t1 values (3,3);
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select * from t1;
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alter table t1 add c int not null, add key using HASH (c,a);
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drop table t1;
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create table t1 (a int not null,b int not null, primary key using HASH (a)) engine=heap comment="testing heaps";
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insert into t1 values(1,1),(2,2),(3,3),(4,4);
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delete from t1 where a > 0;
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select * from t1;
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drop table t1;
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create table t1 (a int not null,b int not null, primary key using HASH (a)) engine=heap comment="testing heaps";
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insert into t1 values(1,1),(2,2),(3,3),(4,4);
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alter table t1 modify a int not null auto_increment, engine=myisam, comment="new myisam table";
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#show table status like "t1";
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select * from t1;
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drop table t1;
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create table t1 (a int not null) engine=heap;
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insert into t1 values (869751),(736494),(226312),(802616),(728912);
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select * from t1 where a > 736494;
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alter table t1 add unique uniq_id using HASH (a);
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select * from t1 where a > 736494;
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select * from t1 where a = 736494;
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select * from t1 where a=869751 or a=736494;
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select * from t1 where a in (869751,736494,226312,802616);
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alter table t1 engine=myisam;
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explain select * from t1 where a in (869751,736494,226312,802616);
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drop table t1;
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create table t1 (x int not null, y int not null, key x using HASH (x), unique y using HASH (y))
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engine=heap;
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insert into t1 values (1,1),(2,2),(1,3),(2,4),(2,5),(2,6);
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select * from t1 where x=1;
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select * from t1,t1 as t2 where t1.x=t2.y;
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explain select * from t1,t1 as t2 where t1.x=t2.y;
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drop table t1;
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create table t1 (a int) engine=heap;
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insert into t1 values(1);
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select max(a) from t1;
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drop table t1;
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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;
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insert into t1 values(1,1),(1,2),(2,3),(1,3),(1,4),(1,5),(1,6);
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select * from t1 where a=1;
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insert into t1 values(1,1),(1,2),(2,3),(1,3),(1,4),(1,5),(1,6);
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select * from t1 where a=1;
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drop table t1;
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create table t1 (id int unsigned not null, primary key using HASH (id)) engine=HEAP;
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insert into t1 values(1);
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select max(id) from t1;
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insert into t1 values(2);
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select max(id) from t1;
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replace into t1 values(1);
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drop table t1;
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create table t1 (n int) engine=heap;
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drop table t1;
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create table t1 (n int) engine=heap;
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drop table if exists t1;
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# Test of non unique index
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CREATE table t1(f1 int not null,f2 char(20) not
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null,index(f2)) engine=heap;
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INSERT into t1 set f1=12,f2="bill";
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INSERT into t1 set f1=13,f2="bill";
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INSERT into t1 set f1=14,f2="bill";
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INSERT into t1 set f1=15,f2="bill";
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INSERT into t1 set f1=16,f2="ted";
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INSERT into t1 set f1=12,f2="ted";
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INSERT into t1 set f1=12,f2="ted";
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INSERT into t1 set f1=12,f2="ted";
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INSERT into t1 set f1=12,f2="ted";
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delete from t1 where f2="bill";
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select * from t1;
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drop table t1;
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#
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# Test when using part key searches
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#
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create table t1 (btn char(10) not null, key using HASH (btn)) engine=heap;
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insert into t1 values ("hello"),("hello"),("hello"),("hello"),("hello"),("a"),("b"),("c"),("d"),("e"),("f"),("g"),("h"),("i");
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explain select * from t1 where btn like "q%";
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select * from t1 where btn like "q%";
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alter table t1 add column new_col char(1) not null, add key using HASH (btn,new_col), drop key btn;
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update t1 set new_col=left(btn,1);
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explain select * from t1 where btn="a";
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explain select * from t1 where btn="a" and new_col="a";
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drop table t1;
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#
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# Test of NULL keys
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#
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CREATE TABLE t1 (
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a int default NULL,
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b int default NULL,
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KEY a using HASH (a),
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UNIQUE b using HASH (b)
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) engine=heap;
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INSERT INTO t1 VALUES (NULL,99),(99,NULL),(1,1),(2,2),(1,3);
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SELECT * FROM t1 WHERE a=NULL;
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explain SELECT * FROM t1 WHERE a IS NULL;
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SELECT * FROM t1 WHERE a<=>NULL;
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SELECT * FROM t1 WHERE b=NULL;
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explain SELECT * FROM t1 WHERE b IS NULL;
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SELECT * FROM t1 WHERE b<=>NULL;
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--error ER_DUP_ENTRY
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INSERT INTO t1 VALUES (1,3);
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DROP TABLE t1;
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#
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# Test when deleting all rows
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#
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CREATE TABLE t1 (a int not null, primary key using HASH (a)) engine=heap;
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INSERT into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10),(11);
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DELETE from t1 where a < 100;
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SELECT * from t1;
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DROP TABLE t1;
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#
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# Hash index # records estimate test
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#
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create table t1
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(
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a char(8) not null,
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b char(20) not null,
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c int not null,
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key (a)
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) engine=heap;
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insert into t1 values ('aaaa', 'prefill-hash=5',0);
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insert into t1 values ('aaab', 'prefill-hash=0',0);
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insert into t1 values ('aaac', 'prefill-hash=7',0);
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insert into t1 values ('aaad', 'prefill-hash=2',0);
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insert into t1 values ('aaae', 'prefill-hash=1',0);
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insert into t1 values ('aaaf', 'prefill-hash=4',0);
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insert into t1 values ('aaag', 'prefill-hash=3',0);
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insert into t1 values ('aaah', 'prefill-hash=6',0);
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explain select * from t1 where a='aaaa';
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explain select * from t1 where a='aaab';
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explain select * from t1 where a='aaac';
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explain select * from t1 where a='aaad';
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insert into t1 select * from t1;
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# avoid statistics differences between normal and ps-protocol tests
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flush tables;
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explain select * from t1 where a='aaaa';
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explain select * from t1 where a='aaab';
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explain select * from t1 where a='aaac';
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explain select * from t1 where a='aaad';
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# a known effect: table reload causes statistics to be updated:
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flush tables;
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explain select * from t1 where a='aaaa';
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explain select * from t1 where a='aaab';
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explain select * from t1 where a='aaac';
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explain select * from t1 where a='aaad';
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# Check if delete_all_rows() updates #hash_buckets
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create table t2 as select * from t1;
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delete from t1;
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insert into t1 select * from t2;
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explain select * from t1 where a='aaaa';
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explain select * from t1 where a='aaab';
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explain select * from t1 where a='aaac';
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explain select * from t1 where a='aaad';
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drop table t1, t2;
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# Btree and hash index use costs.
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create table t1 (
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id int unsigned not null primary key auto_increment,
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name varchar(20) not null,
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index heap_idx(name),
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index btree_idx using btree(name)
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) engine=heap;
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create table t2 (
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id int unsigned not null primary key auto_increment,
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name varchar(20) not null,
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index btree_idx using btree(name),
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index heap_idx(name)
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) engine=heap;
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insert into t1 (name) values ('Matt'), ('Lilu'), ('Corbin'), ('Carly'),
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('Suzy'), ('Hoppy'), ('Burrito'), ('Mimi'), ('Sherry'), ('Ben'), ('Phil'),
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('Emily'), ('Mike');
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insert into t2 select * from t1;
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explain select * from t1 where name='matt';
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explain select * from t2 where name='matt';
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explain select * from t1 where name='Lilu';
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explain select * from t2 where name='Lilu';
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explain select * from t1 where name='Phil';
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explain select * from t2 where name='Phil';
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explain select * from t1 where name='Lilu';
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explain select * from t2 where name='Lilu';
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insert into t1 (name) select name from t2;
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insert into t1 (name) select name from t2;
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insert into t1 (name) select name from t2;
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insert into t1 (name) select name from t2;
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insert into t1 (name) select name from t2;
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insert into t1 (name) select name from t2;
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flush tables;
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select count(*) from t1 where name='Matt';
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explain select * from t1 ignore index (btree_idx) where name='matt';
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show index from t1;
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show index from t1;
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create table t3
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(
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a varchar(20) not null,
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b varchar(20) not null,
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key (a,b)
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) engine=heap;
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insert into t3 select name, name from t1;
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show index from t3;
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show index from t3;
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# test rec_per_key use for joins.
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explain select * from t1 ignore key(btree_idx), t3 where t1.name='matt' and t3.a = concat('',t1.name) and t3.b=t1.name;
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drop table t1, t2, t3;
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# Fix for BUG#8371: wrong rec_per_key value for hash index on temporary table
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create temporary table t1 ( a int, index (a) ) engine=memory;
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insert into t1 values (1),(2),(3),(4),(5);
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select a from t1 where a in (1,3);
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explain select a from t1 where a in (1,3);
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drop table t1;
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--echo End of 4.1 tests
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#
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# Bug #27643: query failed : 1114 (The table '' is full)
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#
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# Check that HASH indexes disregard trailing spaces when comparing
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# strings with binary collations
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CREATE TABLE t1(col1 VARCHAR(32) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
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col2 VARCHAR(32) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
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UNIQUE KEY key1 USING HASH (col1, col2)) ENGINE=MEMORY;
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INSERT INTO t1 VALUES('A', 'A');
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--error ER_DUP_ENTRY
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INSERT INTO t1 VALUES('A ', 'A ');
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DROP TABLE t1;
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CREATE TABLE t1(col1 VARCHAR(32) CHARACTER SET latin1 COLLATE latin1_bin NOT NULL,
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col2 VARCHAR(32) CHARACTER SET latin1 COLLATE latin1_bin NOT NULL,
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UNIQUE KEY key1 USING HASH (col1, col2)) ENGINE=MEMORY;
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INSERT INTO t1 VALUES('A', 'A');
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--error ER_DUP_ENTRY
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INSERT INTO t1 VALUES('A ', 'A ');
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DROP TABLE t1;
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--echo End of 5.0 tests
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--echo #
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--echo # MDEV-568 (AKA LP BUG#1007981, AKA MySQL bug#44771)
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--echo # Wrong result for a hash index look-up if the index is unique and
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--echo # the key is NULL
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--echo #
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CREATE TABLE t1 ( pk INT PRIMARY KEY, val INT, UNIQUE KEY USING HASH(val)) ENGINE=MEMORY;
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INSERT INTO t1 VALUES (1, NULL);
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INSERT INTO t1 VALUES (2, NULL);
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INSERT INTO t1 VALUES (3, 1);
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INSERT INTO t1 VALUES (4, NULL);
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EXPLAIN SELECT * FROM t1 WHERE val IS NULL;
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SELECT * FROM t1 WHERE val IS NULL;
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drop table t1;
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--echo End of 5.2 tests
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-- echo # bit index in heap tables
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create table t1 (a bit(63) not null) engine=heap;
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insert into t1 values (869751),(736494),(226312),(802616),(728912);
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alter table t1 add unique uniq_id using HASH (a);
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select 0+a from t1 where a > 736494;
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explain select 0+a from t1 where a > 736494;
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select 0+a from t1 where a = 736494;
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explain select 0+a from t1 where a = 736494;
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select 0+a from t1 where a=869751 or a=736494;
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explain select 0+a from t1 where a=869751 or a=736494;
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select 0+a from t1 where a in (869751,736494,226312,802616,728912);
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explain select 0+a from t1 where a in (869751,736494,226312,802616,728912);
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drop table t1;
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--echo End of 5.3 tests
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--echo #
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--echo # Bug #55472: Assertion failed in heap_rfirst function of hp_rfirst.c
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--echo # on DELETE statement
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--echo #
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CREATE TABLE t1 (col_int_nokey INT,
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col_int_key INT,
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INDEX(col_int_key) USING HASH) ENGINE = HEAP;
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INSERT INTO t1 (col_int_nokey, col_int_key) VALUES (3, 0), (4, 0), (3, 1);
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DELETE FROM t1 WHERE col_int_nokey = 5 ORDER BY col_int_key LIMIT 2;
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DROP TABLE t1;
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--echo #
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--echo # Bug #1002564: Wrong result for a lookup query from a heap table
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--echo #
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CREATE TABLE t1 (c1 VARCHAR(10) NOT NULL, KEY i1 (c1(3))) ENGINE=MEMORY DEFAULT CHARSET=latin1;
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INSERT INTO t1 VALUES ('foo1'), ('bar2'), ('baz3');
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explain SELECT * FROM t1 WHERE c1='bar2';
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SELECT * FROM t1 WHERE c1='bar2';
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ALTER TABLE t1 DROP KEY i1, ADD KEY il (c1(3)) using btree;
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explain SELECT * FROM t1 WHERE c1='bar2';
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SELECT * FROM t1 WHERE c1='bar2';
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DROP TABLE t1;
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--echo #
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--echo # End of 5.5 tests
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--echo #
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--echo #
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--echo # MDEV-27406 Index on a HEAP table retains DESC attribute despite being hash
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--echo #
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create table t1 (a int, key(a desc)) engine=memory;
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show index from t1;
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show create table t1;
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drop table t1;
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--echo #
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--echo # End of 10.8 tests
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--echo #
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