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8c988dc61b
DB_COL_APPEARS_TWICE_IN_INDEX: Remove. This condition is already checked and reported by MySQL before passing the index definition to the storage engine. row_create_index_for_mysql(): Remove the redundant check for DB_COL_APPEARS_TWICE_IN_INDEX. When enforcing the column prefix index limit, invoke dict_mem_index_free(index) to plug the memory leak. In the loop, use index->n_def instead of dict_index_get_n_fields(index), because the latter would be 0 for indexes that have not been copied to the data dictionary cache. innodb-use-sys-malloc.test: Add test cases for attempting to trigger the error checks in row_create_index_for_mysql(). Before MySQL 5.5 and WL#5743, the leak is only reproducible if ha_innobase::max_supported_key_part_length() returned a higher limit than the one used in row_create_index_for_mysql(). In MySQL 5.5 and later, the leak is reproducible with innodb_large_prefix=true. rb:688 approved by Jimmy Yang
53 lines
1.5 KiB
Text
53 lines
1.5 KiB
Text
SELECT @@GLOBAL.innodb_use_sys_malloc;
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@@GLOBAL.innodb_use_sys_malloc
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1
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1 Expected
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SET @@GLOBAL.innodb_use_sys_malloc=0;
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ERROR HY000: Variable 'innodb_use_sys_malloc' is a read only variable
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Expected error 'Read only variable'
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SELECT @@GLOBAL.innodb_use_sys_malloc;
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@@GLOBAL.innodb_use_sys_malloc
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1
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1 Expected
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create table t1(a int not null,key(a,a)) engine=innodb DEFAULT CHARSET=latin1;
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ERROR 42S21: Duplicate column name 'a'
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create table t1(a int,b text,key(b(768))) engine=innodb DEFAULT CHARSET=latin1;
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ERROR HY000: Index column size too large. The maximum column size is 767 bytes.
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create table t1(a int not null,b text) engine=innodb DEFAULT CHARSET=latin1;
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insert into t1 values (1,''),(2,''),(3,''),(4,''),(5,''),(6,''),(7,'');
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create index t1aa on t1(a,a);
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ERROR 42S21: Duplicate column name 'a'
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create index t1b on t1(b(768));
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ERROR HY000: Index column size too large. The maximum column size is 767 bytes.
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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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`a` int(11) NOT NULL,
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`b` text
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) ENGINE=InnoDB DEFAULT CHARSET=latin1
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select * from t1;
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a b
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drop table t1;
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CREATE TABLE t2(a int primary key, b text) ENGINE=InnoDB DEFAULT CHARSET=latin1;
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INSERT INTO t2 VALUES (1,''),(2,''),(3,''),(4,''),(5,''),(6,''),(7,'');
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CREATE INDEX t2aa on t2(a,a);
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ERROR 42S21: Duplicate column name 'a'
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CREATE INDEX t2b on t2(b(768));
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ERROR HY000: Index column size too large. The maximum column size is 767 bytes.
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SELECT * FROM t2;
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a b
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DROP TABLE t2;
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