diff options
Diffstat (limited to 'mysql-test/r/heap_hash.result')
| -rw-r--r-- | mysql-test/r/heap_hash.result | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/mysql-test/r/heap_hash.result b/mysql-test/r/heap_hash.result new file mode 100644 index 00000000000..43a86069d3d --- /dev/null +++ b/mysql-test/r/heap_hash.result @@ -0,0 +1,205 @@ +drop table if exists t1; +create table t1 (a int not null,b int not null, primary key using HASH (a)) type=heap comment="testing heaps" avg_row_length=100 min_rows=1 max_rows=100; +insert into t1 values(1,1),(2,2),(3,3),(4,4); +delete from t1 where a=1 or a=0; +show keys from t1; +Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment +t1 0 PRIMARY 1 a NULL NULL NULL NULL HASH +select * from t1; +a b +2 2 +3 3 +4 4 +select * from t1 where a=4; +a b +4 4 +update t1 set b=5 where a=4; +update t1 set b=b+1 where a>=3; +replace t1 values (3,3); +select * from t1; +a b +2 2 +3 3 +4 6 +alter table t1 add c int not null, add key using HASH (c,a); +drop table t1; +create table t1 (a int not null,b int not null, primary key using HASH (a)) type=heap comment="testing heaps"; +insert into t1 values(1,1),(2,2),(3,3),(4,4); +delete from t1 where a > 0; +select * from t1; +a b +drop table t1; +create table t1 (a int not null,b int not null, primary key using HASH (a)) type=heap comment="testing heaps"; +insert into t1 values(1,1),(2,2),(3,3),(4,4); +alter table t1 modify a int not null auto_increment, type=myisam, comment="new myisam table"; +select * from t1; +a b +1 1 +2 2 +3 3 +4 4 +drop table t1; +create table t1 (a int not null) type=heap; +insert into t1 values (869751),(736494),(226312),(802616); +select * from t1 where a > 736494; +a +869751 +802616 +alter table t1 add unique uniq_id using HASH (a); +select * from t1 where a > 736494; +a +869751 +802616 +select * from t1 where a = 736494; +a +736494 +select * from t1 where a=869751 or a=736494; +a +736494 +869751 +select * from t1 where a in (869751,736494,226312,802616); +a +226312 +736494 +802616 +869751 +alter table t1 type=myisam; +explain select * from t1 where a in (869751,736494,226312,802616); +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 range uniq_id uniq_id 4 NULL 4 where used; Using index +drop table t1; +create table t1 (x int not null, y int not null, key x using HASH (x), unique y using HASH (y)) +type=heap; +insert into t1 values (1,1),(2,2),(1,3),(2,4),(2,5),(2,6); +select * from t1 where x=1; +x y +1 3 +1 1 +select * from t1,t1 as t2 where t1.x=t2.y; +x y x y +1 1 1 1 +2 2 2 2 +1 3 1 1 +2 4 2 2 +2 5 2 2 +2 6 2 2 +explain select * from t1,t1 as t2 where t1.x=t2.y; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 ALL x NULL NULL NULL 6 +1 SIMPLE t2 eq_ref y y 4 t1.x 1 +drop table t1; +create table t1 (a int) type=heap; +insert into t1 values(1); +select max(a) from t1; +max(a) +1 +drop table t1; +CREATE TABLE t1 ( a int not null default 0, b int not null default 0, key using HASH (a), key using HASH (b) ) TYPE=HEAP; +insert into t1 values(1,1),(1,2),(2,3),(1,3),(1,4),(1,5),(1,6); +select * from t1 where a=1; +a b +1 6 +1 5 +1 4 +1 3 +1 2 +1 1 +insert into t1 values(1,1),(1,2),(2,3),(1,3),(1,4),(1,5),(1,6); +select * from t1 where a=1; +a b +1 6 +1 5 +1 4 +1 3 +1 2 +1 1 +1 6 +1 5 +1 4 +1 3 +1 2 +1 1 +drop table t1; +create table t1 (id int unsigned not null, primary key using HASH (id)) type=HEAP; +insert into t1 values(1); +select max(id) from t1; +max(id) +1 +insert into t1 values(2); +select max(id) from t1; +max(id) +2 +replace into t1 values(1); +drop table t1; +create table t1 (n int) type=heap; +drop table t1; +create table t1 (n int) type=heap; +drop table if exists t1; +CREATE table t1(f1 int not null,f2 char(20) not +null,index(f2)) type=heap; +INSERT into t1 set f1=12,f2="bill"; +INSERT into t1 set f1=13,f2="bill"; +INSERT into t1 set f1=14,f2="bill"; +INSERT into t1 set f1=15,f2="bill"; +INSERT into t1 set f1=16,f2="ted"; +INSERT into t1 set f1=12,f2="ted"; +INSERT into t1 set f1=12,f2="ted"; +INSERT into t1 set f1=12,f2="ted"; +INSERT into t1 set f1=12,f2="ted"; +delete from t1 where f2="bill"; +select * from t1; +f1 f2 +16 ted +12 ted +12 ted +12 ted +12 ted +drop table t1; +create table t1 (btn char(10) not null, key using HASH (btn)) type=heap; +insert into t1 values ("hello"),("hello"),("hello"),("hello"),("hello"),("a"),("b"),("c"),("d"),("e"),("f"),("g"),("h"),("i"); +explain select * from t1 where btn like "q%"; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 ALL btn NULL NULL NULL 14 where used +select * from t1 where btn like "q%"; +btn +alter table t1 add column new_col char(1) not null, add key using HASH (btn,new_col), drop key btn; +update t1 set new_col=btn; +explain select * from t1 where btn="a"; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 ALL btn NULL NULL NULL 14 where used +explain select * from t1 where btn="a" and new_col="a"; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 ref btn btn 11 const,const 10 where used +drop table t1; +CREATE TABLE t1 ( +a int default NULL, +b int default NULL, +KEY a using HASH (a), +UNIQUE b using HASH (b) +) type=heap; +INSERT INTO t1 VALUES (NULL,99),(99,NULL),(1,1),(2,2),(1,3); +SELECT * FROM t1 WHERE a=NULL; +a b +explain SELECT * FROM t1 WHERE a IS NULL; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 ref a a 5 const 10 where used +SELECT * FROM t1 WHERE a<=>NULL; +a b +NULL 99 +SELECT * FROM t1 WHERE b=NULL; +a b +explain SELECT * FROM t1 WHERE b IS NULL; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t1 ref b b 5 const 1 where used +SELECT * FROM t1 WHERE b<=>NULL; +a b +99 NULL +INSERT INTO t1 VALUES (1,3); +Duplicate entry '3' for key 1 +DROP TABLE t1; +CREATE TABLE t1 (a int not null, primary key using HASH (a)) type=heap; +INSERT into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10),(11); +DELETE from t1 where a < 100; +SELECT * from t1; +a +DROP TABLE t1; |