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Viewing changes to mysql-test/suite/sys_vars/t/innodb_read_ahead_threshold_basic.test

  • Committer: root
  • Date: 2011-10-29 01:34:40 UTC
  • Revision ID: root@hppro1.office.percona.com-20111029013440-qhnf4jk8kdjcf4e0
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mysql-test/suite/sys_vars/t/innodb_read_ahead_threshold_basic.test
 
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# 2010-01-27 - Added
 
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#
 
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--source include/have_innodb.inc
 
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SET @start_global_value = @@global.innodb_read_ahead_threshold;
 
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SELECT @start_global_value;
 
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#
 
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# exists as global only
 
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#
 
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--echo Valid values are between 0 and 64
 
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select @@global.innodb_read_ahead_threshold between 0 and 64;
 
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select @@global.innodb_read_ahead_threshold;
 
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--error ER_INCORRECT_GLOBAL_LOCAL_VAR
 
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select @@session.innodb_read_ahead_threshold;
 
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show global variables like 'innodb_read_ahead_threshold';
 
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show session variables like 'innodb_read_ahead_threshold';
 
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select * from information_schema.global_variables where variable_name='innodb_read_ahead_threshold';
 
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select * from information_schema.session_variables where variable_name='innodb_read_ahead_threshold';
 
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#
 
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# show that it's writable
 
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#
 
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set global innodb_read_ahead_threshold=10;
 
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select @@global.innodb_read_ahead_threshold;
 
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select * from information_schema.global_variables where variable_name='innodb_read_ahead_threshold';
 
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select * from information_schema.session_variables where variable_name='innodb_read_ahead_threshold';
 
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--error ER_GLOBAL_VARIABLE
 
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set session innodb_read_ahead_threshold=1;
 
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#
 
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# incorrect types
 
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#
 
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--error ER_WRONG_TYPE_FOR_VAR
 
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set global innodb_read_ahead_threshold=1.1;
 
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--error ER_WRONG_TYPE_FOR_VAR
 
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set global innodb_read_ahead_threshold=1e1;
 
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--error ER_WRONG_TYPE_FOR_VAR
 
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set global innodb_read_ahead_threshold="foo";
 
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set global innodb_read_ahead_threshold=-7;
 
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select @@global.innodb_read_ahead_threshold;
 
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select * from information_schema.global_variables where variable_name='innodb_read_ahead_threshold';
 
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set global innodb_read_ahead_threshold=96;
 
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select @@global.innodb_read_ahead_threshold;
 
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select * from information_schema.global_variables where variable_name='innodb_read_ahead_threshold';
 
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#
 
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# min/max values
 
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#
 
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set global innodb_read_ahead_threshold=0;
 
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select @@global.innodb_read_ahead_threshold;
 
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set global innodb_read_ahead_threshold=64;
 
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select @@global.innodb_read_ahead_threshold;
 
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SET @@global.innodb_read_ahead_threshold = @start_global_value;
 
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SELECT @@global.innodb_read_ahead_threshold;