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Merge 10.2 into 10.3
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@@ -161,3 +161,62 @@ c d
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6 30
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drop table t2, t1;
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drop user foo;
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#
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# MDEV-17187 table doesn't exist in engine after ALTER other tables
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# with CONSTRAINTs
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#
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set foreign_key_checks=on;
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create table t1 (id int not null primary key) engine=innodb;
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create table t2 (id int not null primary key, fid int not null,
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CONSTRAINT fk_fid FOREIGN KEY (fid) REFERENCES t1 (id))engine=innodb;
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insert into t1 values (1), (2), (3);
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insert into t2 values (1, 1), (2, 1), (3, 2);
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set foreign_key_checks=off;
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alter table t2 drop index fk_fid;
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set foreign_key_checks=on;
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delete from t1 where id=2;
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ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `fk_fid` FOREIGN KEY (`fid`) REFERENCES `t1` (`id`))
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insert into t2 values(4, 99);
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ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (`test`.`t2`, CONSTRAINT `fk_fid` FOREIGN KEY (`fid`) REFERENCES `t1` (`id`))
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select * from t1;
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id
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1
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2
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3
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select * from t2;
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id fid
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1 1
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2 1
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3 2
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set foreign_key_checks=off;
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delete from t1 where id=2;
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insert into t2 values(4, 99);
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set foreign_key_checks=on;
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select * from t1;
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id
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1
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3
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select * from t2;
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id fid
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1 1
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2 1
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3 2
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4 99
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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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`id` int(11) NOT NULL,
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PRIMARY KEY (`id`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1
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show create table t2;
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Table Create Table
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t2 CREATE TABLE `t2` (
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`id` int(11) NOT NULL,
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`fid` int(11) NOT NULL,
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PRIMARY KEY (`id`),
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CONSTRAINT `fk_fid` FOREIGN KEY (`fid`) REFERENCES `t1` (`id`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1
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drop table t1,t2;
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ERROR 23000: Cannot delete or update a parent row: a foreign key constraint fails
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drop table t1,t2;
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ERROR 42S02: Unknown table 'test.t2'
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@@ -25,7 +25,7 @@ create table t2(a int, constraint a foreign key a (a) references t1(a)) engine=i
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ERROR HY000: Can't create table `test`.`t2` (errno: 150 "Foreign key constraint is incorrectly formed")
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show warnings;
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Level Code Message
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Warning 150 Create table '`test`.`t2`' with foreign key constraint failed. There is no index in the referenced table where the referenced columns appear as the first columns near ' foreign key a (a) references t1(a)) engine=innodb'.
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Warning 150 Create table `test`.`t2` with foreign key constraint failed. There is no index in the referenced table where the referenced columns appear as the first columns near ' foreign key a (a) references t1(a)) engine=innodb'.
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Error 1005 Can't create table `test`.`t2` (errno: 150 "Foreign key constraint is incorrectly formed")
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Warning 1215 Cannot add foreign key constraint for `t2`
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drop table t1;
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@@ -42,7 +42,7 @@ alter table t2 add constraint b foreign key (b) references t2(b);
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ERROR HY000: Can't create table `test`.`t2` (errno: 150 "Foreign key constraint is incorrectly formed")
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show warnings;
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Level Code Message
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Warning 150 Alter table '`test`.`t2`' with foreign key constraint failed. There is no index in the referenced table where the referenced columns appear as the first columns near ' foreign key (b) references t2(b)'.
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Warning 150 Alter table `test`.`t2` with foreign key constraint failed. There is no index in the referenced table where the referenced columns appear as the first columns near ' foreign key (b) references t2(b)'.
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Error 1005 Can't create table `test`.`t2` (errno: 150 "Foreign key constraint is incorrectly formed")
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Warning 1215 Cannot add foreign key constraint for `t2`
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drop table t2, t1;
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@@ -19,7 +19,6 @@ main
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ref_table1
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ref_table2
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# restart and see if we can still access the main table
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SET FOREIGN_KEY_CHECKS=0;
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ALTER TABLE `main` ADD INDEX `idx_1` (`ref_id1`);
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SHOW CREATE TABLE `main`;
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Table Create Table
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@@ -4,13 +4,17 @@
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#
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# Set up the test with a procedure and a function.
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#
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SET @saved_frequency= @@GLOBAL.innodb_purge_rseg_truncate_frequency;
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SET GLOBAL innodb_purge_rseg_truncate_frequency= 1;
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CREATE PROCEDURE insert_n(start int, end int)
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BEGIN
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DECLARE i INT DEFAULT start;
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START TRANSACTION;
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WHILE i <= end do
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INSERT INTO t1 VALUES (1, 2, 3) ON DUPLICATE KEY UPDATE c = i;
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SET i = i + 1;
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END WHILE;
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COMMIT;
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END~~
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CREATE FUNCTION num_pages_get()
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RETURNS INT
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@@ -47,13 +51,14 @@ connection default;
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# Connect to default and record how many pages were accessed
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# when selecting the record using the secondary key.
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#
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InnoDB 4 transactions not purged
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SET @num_pages_1 = num_pages_get();
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SELECT * FROM t1 force index (b);
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a b c
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SET @num_pages_2= num_pages_get();
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SELECT @num_pages_2 - @num_pages_1 < 500;
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@num_pages_2 - @num_pages_1 < 500
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1
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SELECT IF(@num_pages_2 - @num_pages_1 < 5000, 'OK', @num_pages_2 - @num_pages_1) num_pages_diff;
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num_pages_diff
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OK
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#
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# Commit and show the final record.
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#
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@@ -76,6 +81,7 @@ test.t1 check status OK
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#
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disconnect con2;
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disconnect con3;
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SET GLOBAL innodb_purge_rseg_truncate_frequency= @saved_frequency;
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DROP TABLE t1;
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DROP PROCEDURE insert_n;
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DROP FUNCTION num_pages_get;
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