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Current File : /www/server/mysql/src/mysql-test/suite/sys_vars/t/gtid_executed_compression_period_basic.test
################################################################################
# gtid_executed_compression_period
#
# It is a global variable only and can be set dynamically.
# It has UINT type and accepts numbers from 0 to 4294967295. Default value is 1000.
#
# This test verifies the variable can be set, selected and showed correctly.
################################################################################

SET @start_global_value = @@global.gtid_executed_compression_period;
SELECT @start_global_value;

--echo #
--echo # It exists as a global variable
--echo #
SELECT @@GLOBAL.gtid_executed_compression_period;

SHOW GLOBAL VARIABLES LIKE 'gtid_executed_compression_period';

--disable_warnings
SELECT * FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE
  VARIABLE_NAME = 'gtid_executed_compression_period';
--enable_warnings

--echo #
--echo # It is not a session variable
--echo #
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
SELECT @@SESSION.gtid_executed_compression_period;

--error ER_GLOBAL_VARIABLE
SET SESSION gtid_executed_compression_period= 2;
SHOW SESSION VARIABLES LIKE 'gtid_executed_compression_period';

SHOW SESSION VARIABLES LIKE 'gtid_executed_compression_period';

--disable_warnings
SELECT * FROM INFORMATION_SCHEMA.SESSION_VARIABLES WHERE
  VARIABLE_NAME ='gtid_executed_compression_period';
--enable_warnings

--echo #
--echo # Verify that it's writable
--echo #
SET GLOBAL gtid_executed_compression_period= 0;
SELECT @@GLOBAL.gtid_executed_compression_period;

SET GLOBAL gtid_executed_compression_period= 5000;
SELECT @@GLOBAL.gtid_executed_compression_period;

SET GLOBAL gtid_executed_compression_period= 4294967295;
SELECT @@GLOBAL.gtid_executed_compression_period;


--echo #
--echo # Verify that it could not bet set with invalid values
--echo #

# Allowed value range: (0, UINT_MAX32)
# Value lower than allowed range
SET GLOBAL gtid_executed_compression_period= -1;
SELECT @@GLOBAL.gtid_executed_compression_period;

# Value higher than allowed range
SET GLOBAL gtid_executed_compression_period= 4294967296;
SELECT @@GLOBAL.gtid_executed_compression_period;

# Incompatible value types
--error ER_WRONG_TYPE_FOR_VAR
set global gtid_executed_compression_period= 1.1;
--error ER_WRONG_TYPE_FOR_VAR
set global gtid_executed_compression_period= 1e1;
--error ER_WRONG_TYPE_FOR_VAR
set global gtid_executed_compression_period= "foobar";

SET @@global.gtid_executed_compression_period= @start_global_value;
SELECT @@global.gtid_executed_compression_period;

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