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CREATE TABLE valid_values (value varchar(255)) ENGINE=myisam;
INSERT INTO valid_values VALUES(100);
INSERT INTO valid_values VALUES(1);
CREATE TABLE invalid_values (value varchar(255)) ENGINE=myisam;
INSERT INTO invalid_values VALUES('\'aaa\'');
INSERT INTO invalid_values VALUES('\'123\'');
SET @start_global_value = @@global.ROCKSDB_MAX_LATEST_DEADLOCKS;
SELECT @start_global_value;
@start_global_value
5
'# Setting to valid values in global scope#'
"Trying to set variable @@global.ROCKSDB_MAX_LATEST_DEADLOCKS to 100"
SET @@global.ROCKSDB_MAX_LATEST_DEADLOCKS = 100;
SELECT @@global.ROCKSDB_MAX_LATEST_DEADLOCKS;
@@global.ROCKSDB_MAX_LATEST_DEADLOCKS
100
"Setting the global scope variable back to default"
SET @@global.ROCKSDB_MAX_LATEST_DEADLOCKS = DEFAULT;
SELECT @@global.ROCKSDB_MAX_LATEST_DEADLOCKS;
@@global.ROCKSDB_MAX_LATEST_DEADLOCKS
5
"Trying to set variable @@global.ROCKSDB_MAX_LATEST_DEADLOCKS to 1"
SET @@global.ROCKSDB_MAX_LATEST_DEADLOCKS = 1;
SELECT @@global.ROCKSDB_MAX_LATEST_DEADLOCKS;
@@global.ROCKSDB_MAX_LATEST_DEADLOCKS
1
"Setting the global scope variable back to default"
SET @@global.ROCKSDB_MAX_LATEST_DEADLOCKS = DEFAULT;
SELECT @@global.ROCKSDB_MAX_LATEST_DEADLOCKS;
@@global.ROCKSDB_MAX_LATEST_DEADLOCKS
5
"Trying to set variable @@session.ROCKSDB_MAX_LATEST_DEADLOCKS to 444. It should fail because it is not session."
SET @@session.ROCKSDB_MAX_LATEST_DEADLOCKS = 444;
ERROR HY000: Variable 'rocksdb_max_latest_deadlocks' is a GLOBAL variable and should be set with SET GLOBAL
'# Testing with invalid values in global scope #'
"Trying to set variable @@global.ROCKSDB_MAX_LATEST_DEADLOCKS to 'aaa'"
SET @@global.ROCKSDB_MAX_LATEST_DEADLOCKS = 'aaa';
Got one of the listed errors
SELECT @@global.ROCKSDB_MAX_LATEST_DEADLOCKS;
@@global.ROCKSDB_MAX_LATEST_DEADLOCKS
5
"Trying to set variable @@global.ROCKSDB_MAX_LATEST_DEADLOCKS to '123'"
SET @@global.ROCKSDB_MAX_LATEST_DEADLOCKS = '123';
Got one of the listed errors
SELECT @@global.ROCKSDB_MAX_LATEST_DEADLOCKS;
@@global.ROCKSDB_MAX_LATEST_DEADLOCKS
5
SET @@global.ROCKSDB_MAX_LATEST_DEADLOCKS = @start_global_value;
SELECT @@global.ROCKSDB_MAX_LATEST_DEADLOCKS;
@@global.ROCKSDB_MAX_LATEST_DEADLOCKS
5
DROP TABLE valid_values;
DROP TABLE invalid_values;
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