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Test of range optimizer in InnoDB

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sql/ha_myisam.cc:
  Added function comment
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2003-03-18 03:16:12 +02:00
parent 2103479670
commit 53bb7b6801
3 changed files with 95 additions and 2 deletions
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33
mysql-test/r/innodb.result
View File

@ -1,4 +1,4 @@
drop table if exists t1,t2;
drop table if exists t1,t2,t3;
create table t1 (id int unsigned not null auto_increment, code tinyint unsigned not null, name char(20) not null, primary key (id), key (code), unique (name)) type=innodb;
insert into t1 (code, name) values (1, 'Tim'), (1, 'Monty'), (2, 'David'), (2, 'Erik'), (3, 'Sasha'), (3, 'Jeremy'), (4, 'Matt');
select id, code, name from t1 order by id;
@ -1091,3 +1091,34 @@ SELECT * from t1;
id
3
DROP TABLE t1,t2;
set autocommit=0;
CREATE TABLE t1 (id CHAR(15) NOT NULL, value CHAR(40) NOT NULL, PRIMARY KEY(id)) TYPE=InnoDB;
CREATE TABLE t2 (id CHAR(15) NOT NULL, value CHAR(40) NOT NULL, PRIMARY KEY(id)) TYPE=InnoDB;
CREATE TABLE t3 (id1 CHAR(15) NOT NULL, id2 CHAR(15) NOT NULL, PRIMARY KEY(id1, id2)) TYPE=InnoDB;
INSERT INTO t3 VALUES("my-test-1", "my-test-2");
COMMIT;
INSERT INTO t1 VALUES("this-key", "will disappear");
INSERT INTO t2 VALUES("this-key", "will also disappear");
DELETE FROM t3 WHERE id1="my-test-1";
SELECT * FROM t1;
id value
this-key will disappear
SELECT * FROM t2;
id value
this-key will also disappear
SELECT * FROM t3;
id1 id2
ROLLBACK;
SELECT * FROM t1;
id value
SELECT * FROM t2;
id value
SELECT * FROM t3;
id1 id2
my-test-1 my-test-2
SELECT * FROM t3 WHERE id1="my-test-1" LOCK IN SHARE MODE;
id1 id2
my-test-1 my-test-2
COMMIT;
set autocommit=1;
DROP TABLE t1,t2,t3;

34
mysql-test/t/innodb.test
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@ -4,7 +4,7 @@
# Small basic test with ignore
#
drop table if exists t1,t2;
drop table if exists t1,t2,t3;
create table t1 (id int unsigned not null auto_increment, code tinyint unsigned not null, name char(20) not null, primary key (id), key (code), unique (name)) type=innodb;
insert into t1 (code, name) values (1, 'Tim'), (1, 'Monty'), (2, 'David'), (2, 'Erik'), (3, 'Sasha'), (3, 'Jeremy'), (4, 'Matt');
@ -726,3 +726,35 @@ SELECT * from t1;
UPDATE t1,t2 SET t1.id=t1.id+1 where t1.id!=t2.id;
SELECT * from t1;
DROP TABLE t1,t2;
#
# Test of range_optimizer
#
set autocommit=0;
CREATE TABLE t1 (id CHAR(15) NOT NULL, value CHAR(40) NOT NULL, PRIMARY KEY(id)) TYPE=InnoDB;
CREATE TABLE t2 (id CHAR(15) NOT NULL, value CHAR(40) NOT NULL, PRIMARY KEY(id)) TYPE=InnoDB;
CREATE TABLE t3 (id1 CHAR(15) NOT NULL, id2 CHAR(15) NOT NULL, PRIMARY KEY(id1, id2)) TYPE=InnoDB;
INSERT INTO t3 VALUES("my-test-1", "my-test-2");
COMMIT;
INSERT INTO t1 VALUES("this-key", "will disappear");
INSERT INTO t2 VALUES("this-key", "will also disappear");
DELETE FROM t3 WHERE id1="my-test-1";
SELECT * FROM t1;
SELECT * FROM t2;
SELECT * FROM t3;
ROLLBACK;
SELECT * FROM t1;
SELECT * FROM t2;
SELECT * FROM t3;
SELECT * FROM t3 WHERE id1="my-test-1" LOCK IN SHARE MODE;
COMMIT;
set autocommit=1;
DROP TABLE t1,t2,t3;

30
sql/ha_myisam.cc
View File

@ -1242,6 +1242,35 @@ longlong ha_myisam::get_auto_increment()
}
/*
Find out how many rows there is in the given range
SYNOPSIS
records_in_range()
inx Index to use
start_key Start of range. Null pointer if from first key
start_key_len Length of start key
start_search_flag Flag if start key should be included or not
end_key End of range. Null pointer if to last key
end_key_len Length of end key
end_search_flag Flag if start key should be included or not
NOTES
start_search_flag can have one of the following values:
HA_READ_KEY_EXACT Include the key in the range
HA_READ_AFTER_KEY Don't include key in range
end_search_flag can have one of the following values:
HA_READ_BEFORE_KEY Don't include key in range
HA_READ_AFTER_KEY Include all 'end_key' values in the range
RETURN
HA_POS_ERROR Something is wrong with the index tree.
0 There is no matching keys in the given range
number > 0 There is approximately 'number' matching rows in
the range.
*/
ha_rows ha_myisam::records_in_range(int inx,
const byte *start_key,uint start_key_len,
enum ha_rkey_function start_search_flag,
@ -1256,6 +1285,7 @@ ha_rows ha_myisam::records_in_range(int inx,
end_search_flag);
}
int ha_myisam::ft_read(byte * buf)
{
int error;