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0594e1b84b
this is a cleanup patch for our current auto_increment handling: new names for auto_increment variables in THD, new methods to manipulate them (see sql_class.h), some move into handler::, causing less backup/restore work when executing substatements. This makes the logic hopefully clearer, less work is is needed in mysql_insert(). By cleaning up, using different variables for different purposes (instead of one for 3 things...), we fix those bugs, which someone may want to fix in 5.0 too: BUG#20339 "stored procedure using LAST_INSERT_ID() does not replicate statement-based" BUG#20341 "stored function inserting into one auto_increment puts bad data in slave" BUG#19243 "wrong LAST_INSERT_ID() after ON DUPLICATE KEY UPDATE" (now if a row is updated, LAST_INSERT_ID() will return its id) and re-fixes: BUG#6880 "LAST_INSERT_ID() value changes during multi-row INSERT" (already fixed differently by Ramil in 4.1) Test of documented behaviour of mysql_insert_id() (there was no test). The behaviour changes introduced are: - LAST_INSERT_ID() now returns "the first autogenerated auto_increment value successfully inserted", instead of "the first autogenerated auto_increment value if any row was successfully inserted", see auto_increment.test. Same for mysql_insert_id(), see mysql_client_test.c. - LAST_INSERT_ID() returns the id of the updated row if ON DUPLICATE KEY UPDATE, see auto_increment.test. Same for mysql_insert_id(), see mysql_client_test.c. - LAST_INSERT_ID() does not change if no autogenerated value was successfully inserted (it used to then be 0), see auto_increment.test. - if in INSERT SELECT no autogenerated value was successfully inserted, mysql_insert_id() now returns the id of the last inserted row (it already did this for INSERT VALUES), see mysql_client_test.c. - if INSERT SELECT uses LAST_INSERT_ID(X), mysql_insert_id() now returns X (it already did this for INSERT VALUES), see mysql_client_test.c. - NDB now behaves like other engines wrt SET INSERT_ID: with INSERT IGNORE, the id passed in SET INSERT_ID is re-used until a row succeeds; SET INSERT_ID influences not only the first row now. Additionally, when unlocking a table we check that the thread is not keeping a next_insert_id (as the table is unlocked that id is potentially out-of-date); forgetting about this next_insert_id is done in a new handler::ha_release_auto_increment(). Finally we prepare for engines capable of reserving finite-length intervals of auto_increment values: we store such intervals in THD. The next step (to be done by the replication team in 5.1) is to read those intervals from THD and actually store them in the statement-based binary log. NDB will be a good engine to test that.
503 lines
11 KiB
Plaintext
503 lines
11 KiB
Plaintext
drop table if exists t1;
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drop table if exists t2;
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SET SQL_WARNINGS=1;
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create table t1 (a int not null auto_increment,b int, primary key (a)) engine=myisam auto_increment=3;
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insert into t1 values (1,1),(NULL,3),(NULL,4);
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delete from t1 where a=4;
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insert into t1 values (NULL,5),(NULL,6);
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select * from t1;
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a b
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1 1
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3 3
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5 5
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6 6
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delete from t1 where a=6;
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replace t1 values (3,1);
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ALTER TABLE t1 add c int;
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replace t1 values (3,3,3);
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insert into t1 values (NULL,7,7);
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update t1 set a=8,b=b+1,c=c+1 where a=7;
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insert into t1 values (NULL,9,9);
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select * from t1;
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a b c
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1 1 NULL
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3 3 3
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5 5 NULL
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8 8 8
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9 9 9
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drop table t1;
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create table t1 (
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skey tinyint unsigned NOT NULL auto_increment PRIMARY KEY,
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sval char(20)
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);
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insert into t1 values (NULL, "hello");
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insert into t1 values (NULL, "hey");
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select * from t1;
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skey sval
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1 hello
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2 hey
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select _rowid,t1._rowid,skey,sval from t1;
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_rowid _rowid skey sval
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1 1 1 hello
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2 2 2 hey
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drop table t1;
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create table t1 (a char(10) not null, b int not null auto_increment, primary key(a,b));
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insert into t1 values ("a",1),("b",2),("a",2),("c",1);
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insert into t1 values ("a",NULL),("b",NULL),("c",NULL),("e",NULL);
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insert into t1 (a) values ("a"),("b"),("c"),("d");
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insert into t1 (a) values ('k'),('d');
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insert into t1 (a) values ("a");
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insert into t1 values ("d",last_insert_id());
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select * from t1;
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a b
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a 1
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a 2
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a 3
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a 4
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a 5
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b 2
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b 3
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b 4
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c 1
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c 2
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c 3
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d 1
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d 2
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d 5
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e 1
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k 1
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drop table t1;
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create table t1 (ordid int(8) not null auto_increment, ord varchar(50) not null, primary key (ordid), index(ord,ordid));
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insert into t1 (ordid,ord) values (NULL,'sdj'),(NULL,'sdj');
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select * from t1;
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ordid ord
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1 sdj
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2 sdj
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drop table t1;
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create table t1 (ordid int(8) not null auto_increment, ord varchar(50) not null, primary key (ord,ordid));
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insert into t1 values (NULL,'sdj'),(NULL,'sdj'),(NULL,"abc"),(NULL,'abc'),(NULL,'zzz'),(NULL,'sdj'),(NULL,'abc');
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select * from t1;
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ordid ord
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1 abc
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2 abc
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3 abc
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1 sdj
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2 sdj
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3 sdj
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1 zzz
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drop table t1;
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create table t1 (sid char(5), id int(2) NOT NULL auto_increment, key(sid, id));
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create table t2 (sid char(20), id int(2));
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insert into t2 values ('skr',NULL),('skr',NULL),('test',NULL);
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insert into t1 select * from t2;
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select * from t1;
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sid id
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skr 1
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skr 2
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test 1
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drop table t1,t2;
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create table t1 (a int not null primary key auto_increment);
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insert into t1 values (0);
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update t1 set a=0;
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select * from t1;
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a
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0
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check table t1;
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Table Op Msg_type Msg_text
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test.t1 check warning Found row where the auto_increment column has the value 0
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test.t1 check status OK
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drop table t1;
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create table t1 (a int not null auto_increment primary key);
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insert into t1 values (NULL);
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insert into t1 values (-1);
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select last_insert_id();
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last_insert_id()
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1
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insert into t1 values (NULL);
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select * from t1;
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a
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-1
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1
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2
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drop table t1;
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create table t1 (a int not null auto_increment primary key) /*!40102 engine=heap */;
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insert into t1 values (NULL);
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insert into t1 values (-1);
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select last_insert_id();
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last_insert_id()
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1
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insert into t1 values (NULL);
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select * from t1;
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a
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1
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-1
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2
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drop table t1;
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create table t1 (i tinyint unsigned not null auto_increment primary key);
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insert into t1 set i = 254;
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insert into t1 set i = null;
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select last_insert_id();
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last_insert_id()
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255
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explain extended select last_insert_id();
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 select sql_no_cache last_insert_id() AS `last_insert_id()`
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insert into t1 set i = 254;
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ERROR 23000: Duplicate entry '254' for key 'PRIMARY'
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select last_insert_id();
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last_insert_id()
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255
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insert into t1 set i = null;
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ERROR 23000: Duplicate entry '255' for key 'PRIMARY'
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select last_insert_id();
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last_insert_id()
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255
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drop table t1;
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create table t1 (i tinyint unsigned not null auto_increment, key (i));
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insert into t1 set i = 254;
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insert into t1 set i = null;
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select last_insert_id();
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last_insert_id()
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255
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insert into t1 set i = null;
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Warnings:
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Warning 1264 Out of range value for column 'i' at row 1
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select last_insert_id();
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last_insert_id()
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255
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drop table t1;
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create table t1 (i tinyint unsigned not null auto_increment primary key, b int, unique (b));
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insert into t1 values (NULL, 10);
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select last_insert_id();
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last_insert_id()
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1
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insert into t1 values (NULL, 15);
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select last_insert_id();
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last_insert_id()
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2
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insert into t1 values (NULL, 10);
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ERROR 23000: Duplicate entry '10' for key 'b'
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select last_insert_id();
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last_insert_id()
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2
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drop table t1;
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create table t1(a int auto_increment,b int null,primary key(a));
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SET SQL_MODE=NO_AUTO_VALUE_ON_ZERO;
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insert into t1(a,b)values(NULL,1);
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insert into t1(a,b)values(200,2);
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insert into t1(a,b)values(0,3);
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insert into t1(b)values(4);
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insert into t1(b)values(5);
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insert into t1(b)values(6);
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insert into t1(b)values(7);
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select * from t1 order by b;
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a b
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1 1
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200 2
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0 3
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201 4
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202 5
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203 6
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204 7
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alter table t1 modify b mediumint;
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select * from t1 order by b;
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a b
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1 1
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200 2
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0 3
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201 4
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202 5
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203 6
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204 7
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create table t2 (a int);
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insert t2 values (1),(2);
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alter table t2 add b int auto_increment primary key;
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select * from t2;
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a b
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1 1
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2 2
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drop table t2;
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delete from t1 where a=0;
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update t1 set a=0 where b=5;
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select * from t1 order by b;
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a b
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1 1
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200 2
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201 4
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0 5
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203 6
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204 7
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delete from t1 where a=0;
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update t1 set a=NULL where b=6;
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Warnings:
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Warning 1048 Column 'a' cannot be null
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update t1 set a=300 where b=7;
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SET SQL_MODE='';
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insert into t1(a,b)values(NULL,8);
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insert into t1(a,b)values(400,9);
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insert into t1(a,b)values(0,10);
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insert into t1(b)values(11);
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insert into t1(b)values(12);
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insert into t1(b)values(13);
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insert into t1(b)values(14);
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select * from t1 order by b;
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a b
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1 1
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200 2
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201 4
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0 6
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300 7
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301 8
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400 9
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401 10
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402 11
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403 12
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404 13
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405 14
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delete from t1 where a=0;
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update t1 set a=0 where b=12;
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select * from t1 order by b;
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a b
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1 1
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200 2
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201 4
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300 7
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301 8
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400 9
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401 10
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402 11
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0 12
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404 13
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405 14
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delete from t1 where a=0;
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update t1 set a=NULL where b=13;
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Warnings:
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Warning 1048 Column 'a' cannot be null
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update t1 set a=500 where b=14;
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select * from t1 order by b;
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a b
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1 1
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200 2
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201 4
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300 7
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301 8
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400 9
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401 10
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402 11
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0 13
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500 14
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drop table t1;
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create table t1 (a bigint);
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insert into t1 values (1), (2), (3), (NULL), (NULL);
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alter table t1 modify a bigint not null auto_increment primary key;
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select * from t1;
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a
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1
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2
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3
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4
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5
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drop table t1;
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create table t1 (a bigint);
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insert into t1 values (1), (2), (3), (0), (0);
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alter table t1 modify a bigint not null auto_increment primary key;
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select * from t1;
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a
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1
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2
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3
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4
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5
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drop table t1;
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create table t1 (a bigint);
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insert into t1 values (0), (1), (2), (3);
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set sql_mode=NO_AUTO_VALUE_ON_ZERO;
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alter table t1 modify a bigint not null auto_increment primary key;
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set sql_mode= '';
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select * from t1;
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a
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0
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1
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2
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3
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drop table t1;
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create table t1 (a int auto_increment primary key , b int null);
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set sql_mode=NO_AUTO_VALUE_ON_ZERO;
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insert into t1 values (0,1),(1,2),(2,3);
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select * from t1;
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a b
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0 1
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1 2
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2 3
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set sql_mode= '';
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alter table t1 modify b varchar(255);
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insert into t1 values (0,4);
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select * from t1;
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a b
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0 1
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1 2
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2 3
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3 4
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drop table t1;
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CREATE TABLE t1 ( a INT AUTO_INCREMENT, b BLOB, PRIMARY KEY (a,b(10)));
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INSERT INTO t1 (b) VALUES ('aaaa');
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CHECK TABLE t1;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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INSERT INTO t1 (b) VALUES ('');
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CHECK TABLE t1;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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INSERT INTO t1 (b) VALUES ('bbbb');
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CHECK TABLE t1;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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DROP TABLE IF EXISTS t1;
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CREATE TABLE `t1` (
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t1_name VARCHAR(255) DEFAULT NULL,
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t1_id INT(10) UNSIGNED NOT NULL AUTO_INCREMENT,
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KEY (t1_name),
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PRIMARY KEY (t1_id)
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) AUTO_INCREMENT = 1000;
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INSERT INTO t1 (t1_name) VALUES('MySQL');
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INSERT INTO t1 (t1_name) VALUES('MySQL');
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INSERT INTO t1 (t1_name) VALUES('MySQL');
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SELECT * from t1;
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t1_name t1_id
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MySQL 1000
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MySQL 1001
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MySQL 1002
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SHOW CREATE TABLE `t1`;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`t1_name` varchar(255) DEFAULT NULL,
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`t1_id` int(10) unsigned NOT NULL AUTO_INCREMENT,
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PRIMARY KEY (`t1_id`),
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KEY `t1_name` (`t1_name`)
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) ENGINE=MyISAM AUTO_INCREMENT=1003 DEFAULT CHARSET=latin1
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DROP TABLE `t1`;
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create table t1(a int not null auto_increment primary key);
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create table t2(a int not null auto_increment primary key, t1a int);
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insert into t1 values(NULL);
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insert into t2 values (NULL, LAST_INSERT_ID()), (NULL, LAST_INSERT_ID());
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insert into t1 values (NULL);
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insert into t2 values (NULL, LAST_INSERT_ID()), (NULL, LAST_INSERT_ID()),
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(NULL, LAST_INSERT_ID());
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insert into t1 values (NULL);
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insert into t2 values (NULL, LAST_INSERT_ID()), (NULL, LAST_INSERT_ID()),
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(NULL, LAST_INSERT_ID()), (NULL, LAST_INSERT_ID());
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select * from t2;
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a t1a
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1 1
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2 1
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3 2
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4 2
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5 2
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6 3
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7 3
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8 3
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9 3
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drop table t1, t2;
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End of 4.1 tests
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CREATE TABLE t1 ( `a` int(11) NOT NULL auto_increment, `b` int(11) default NULL,PRIMARY KEY (`a`),UNIQUE KEY `b` (`b`));
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insert into t1 (b) values (1);
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replace into t1 (b) values (2), (1), (3);
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select * from t1;
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a b
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3 1
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2 2
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4 3
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truncate table t1;
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insert into t1 (b) values (1);
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replace into t1 (b) values (2);
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replace into t1 (b) values (1);
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replace into t1 (b) values (3);
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select * from t1;
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a b
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3 1
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2 2
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4 3
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drop table t1;
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create table t1 (rowid int not null auto_increment, val int not null,primary
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key (rowid), unique(val));
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replace into t1 (val) values ('1'),('2');
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replace into t1 (val) values ('1'),('2');
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insert into t1 (val) values ('1'),('2');
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ERROR 23000: Duplicate entry '1' for key 'val'
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select * from t1;
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rowid val
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3 1
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4 2
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drop table t1;
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create table t1 (a int not null auto_increment primary key, val int);
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insert into t1 (val) values (1);
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update t1 set a=2 where a=1;
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insert into t1 (val) values (1);
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select * from t1;
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a val
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2 1
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3 1
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drop table t1;
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CREATE TABLE t1 (t1 INT(10) PRIMARY KEY, t2 INT(10));
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INSERT INTO t1 VALUES(0, 0);
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INSERT INTO t1 VALUES(1, 1);
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ALTER TABLE t1 CHANGE t1 t1 INT(10) auto_increment;
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ERROR 23000: ALTER TABLE causes auto_increment resequencing, resulting in duplicate entry '1' for key 'PRIMARY'
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DROP TABLE t1;
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CREATE TABLE `t2` (
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`k` int(11) NOT NULL auto_increment,
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`a` int(11) default NULL,
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`c` int(11) default NULL,
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PRIMARY KEY (`k`),
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UNIQUE KEY `idx_1` (`a`)
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) ENGINE=InnoDB;
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insert into t2 ( a ) values ( 6 ) on duplicate key update c =
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ifnull( c,
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0 ) + 1;
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insert into t2 ( a ) values ( 7 ) on duplicate key update c =
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ifnull( c,
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0 ) + 1;
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select last_insert_id();
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last_insert_id()
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2
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select * from t2;
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k a c
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1 6 NULL
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2 7 NULL
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insert into t2 ( a ) values ( 6 ) on duplicate key update c =
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ifnull( c,
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0 ) + 1;
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select last_insert_id();
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last_insert_id()
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1
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select * from t2;
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k a c
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1 6 1
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2 7 NULL
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insert ignore into t2 values (null,6,1),(10,8,1);
|
|
select last_insert_id();
|
|
last_insert_id()
|
|
1
|
|
insert ignore into t2 values (null,6,1),(null,8,1),(null,15,1),(null,20,1);
|
|
select last_insert_id();
|
|
last_insert_id()
|
|
11
|
|
select * from t2;
|
|
k a c
|
|
1 6 1
|
|
2 7 NULL
|
|
10 8 1
|
|
11 15 1
|
|
12 20 1
|
|
drop table t2;
|
|
create table t1 (a int primary key auto_increment, b int, c int, d timestamp default current_timestamp, unique(b),unique(c));
|
|
insert into t1 values(null,1,1,now());
|
|
insert into t1 values(null,0,0,null);
|
|
replace into t1 values(null,1,0,null);
|
|
select last_insert_id();
|
|
last_insert_id()
|
|
3
|
|
drop table t1;
|