--source include/have_xtradb.inc

# A dynamic, global variable

SET @start_value = @@GLOBAL.innodb_foreground_preflush;

# Default value
SELECT @@GLOBAL.innodb_foreground_preflush;

# Global only
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
SELECT @@SESSION.innodb_foreground_preflush;

# Correct values
SET GLOBAL innodb_foreground_preflush='sync_preflush';
SELECT @@GLOBAL.innodb_foreground_preflush;
SET GLOBAL innodb_foreground_preflush='exponential_backoff';
SELECT @@GLOBAL.innodb_foreground_preflush;

# Incorrect values
--error ER_WRONG_TYPE_FOR_VAR
SET GLOBAL innodb_foreground_preflush=1.1;
--error ER_WRONG_TYPE_FOR_VAR
SET GLOBAL innodb_foreground_preflush=1e1;
--error ER_WRONG_VALUE_FOR_VAR
SET GLOBAL innodb_foreground_preflush=2;
--error ER_WRONG_VALUE_FOR_VAR
SET GLOBAL innodb_foreground_preflush='foo';

SET GLOBAL innodb_foreground_preflush = @start_value;
