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Current File : //usr/opt/mysql57/mysql-test/suite/sys_vars/t/innodb_page_cleaners_basic.test

# Variable name: innodb_page_cleaners
# Scope: Global
# Access type: Static
# Data type: numeric

--source include/have_innodb.inc

SELECT COUNT(@@GLOBAL.innodb_page_cleaners);
--echo 1 Expected

SELECT COUNT(@@innodb_page_cleaners);
--echo 1 Expected

--error ER_INCORRECT_GLOBAL_LOCAL_VAR
SET @@GLOBAL.innodb_page_cleaners=1;
--echo Expected error 'Read-only variable'

--Error ER_BAD_FIELD_ERROR
SELECT innodb_page_cleaners = @@SESSION.innodb_page_cleaners;
--echo Expected error 'Read-only variable'

--disable_warnings
SELECT @@GLOBAL.innodb_page_cleaners = VARIABLE_VALUE
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
WHERE VARIABLE_NAME='innodb_page_cleaners';
--enable_warnings
--echo 1 Expected

--disable_warnings
SELECT COUNT(VARIABLE_VALUE)
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
WHERE VARIABLE_NAME='innodb_page_cleaners';
--enable_warnings
--echo 1 Expected

SELECT @@innodb_page_cleaners = @@GLOBAL.innodb_page_cleaners;
--echo 1 Expected

--Error ER_INCORRECT_GLOBAL_LOCAL_VAR
SELECT COUNT(@@local.innodb_page_cleaners);
--echo Expected error 'Variable is a GLOBAL variable'

--Error ER_INCORRECT_GLOBAL_LOCAL_VAR
SELECT COUNT(@@SESSION.innodb_page_cleaners);
--echo Expected error 'Variable is a GLOBAL variable'

# Check the default value
--disable_warnings
SELECT VARIABLE_NAME, VARIABLE_VALUE
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
WHERE VARIABLE_NAME = 'innodb_page_cleaners';
--enable_warnings

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