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CREATE TABLE valid_values (value varchar(255)) ENGINE=myisam;
INSERT INTO valid_values VALUES(1);
INSERT INTO valid_values VALUES(1024);
INSERT INTO valid_values VALUES(512*1024*1024);
CREATE TABLE invalid_values (value varchar(255)) ENGINE=myisam;
INSERT INTO invalid_values VALUES('\'aaa\'');
SET @start_global_value = @@global.ROCKSDB_MAX_ROW_LOCKS;
SELECT @start_global_value;
@start_global_value
1048576
SET @start_session_value = @@session.ROCKSDB_MAX_ROW_LOCKS;
SELECT @start_session_value;
@start_session_value
1048576
'# Setting to valid values in global scope#'
"Trying to set variable @@global.ROCKSDB_MAX_ROW_LOCKS to 1"
SET @@global.ROCKSDB_MAX_ROW_LOCKS = 1;
SELECT @@global.ROCKSDB_MAX_ROW_LOCKS;
@@global.ROCKSDB_MAX_ROW_LOCKS
1
"Setting the global scope variable back to default"
SET @@global.ROCKSDB_MAX_ROW_LOCKS = DEFAULT;
SELECT @@global.ROCKSDB_MAX_ROW_LOCKS;
@@global.ROCKSDB_MAX_ROW_LOCKS
1048576
"Trying to set variable @@global.ROCKSDB_MAX_ROW_LOCKS to 1024"
SET @@global.ROCKSDB_MAX_ROW_LOCKS = 1024;
SELECT @@global.ROCKSDB_MAX_ROW_LOCKS;
@@global.ROCKSDB_MAX_ROW_LOCKS
1024
"Setting the global scope variable back to default"
SET @@global.ROCKSDB_MAX_ROW_LOCKS = DEFAULT;
SELECT @@global.ROCKSDB_MAX_ROW_LOCKS;
@@global.ROCKSDB_MAX_ROW_LOCKS
1048576
"Trying to set variable @@global.ROCKSDB_MAX_ROW_LOCKS to 536870912"
SET @@global.ROCKSDB_MAX_ROW_LOCKS = 536870912;
SELECT @@global.ROCKSDB_MAX_ROW_LOCKS;
@@global.ROCKSDB_MAX_ROW_LOCKS
536870912
"Setting the global scope variable back to default"
SET @@global.ROCKSDB_MAX_ROW_LOCKS = DEFAULT;
SELECT @@global.ROCKSDB_MAX_ROW_LOCKS;
@@global.ROCKSDB_MAX_ROW_LOCKS
1048576
'# Setting to valid values in session scope#'
"Trying to set variable @@session.ROCKSDB_MAX_ROW_LOCKS to 1"
SET @@session.ROCKSDB_MAX_ROW_LOCKS = 1;
SELECT @@session.ROCKSDB_MAX_ROW_LOCKS;
@@session.ROCKSDB_MAX_ROW_LOCKS
1
"Setting the session scope variable back to default"
SET @@session.ROCKSDB_MAX_ROW_LOCKS = DEFAULT;
SELECT @@session.ROCKSDB_MAX_ROW_LOCKS;
@@session.ROCKSDB_MAX_ROW_LOCKS
1048576
"Trying to set variable @@session.ROCKSDB_MAX_ROW_LOCKS to 1024"
SET @@session.ROCKSDB_MAX_ROW_LOCKS = 1024;
SELECT @@session.ROCKSDB_MAX_ROW_LOCKS;
@@session.ROCKSDB_MAX_ROW_LOCKS
1024
"Setting the session scope variable back to default"
SET @@session.ROCKSDB_MAX_ROW_LOCKS = DEFAULT;
SELECT @@session.ROCKSDB_MAX_ROW_LOCKS;
@@session.ROCKSDB_MAX_ROW_LOCKS
1048576
"Trying to set variable @@session.ROCKSDB_MAX_ROW_LOCKS to 536870912"
SET @@session.ROCKSDB_MAX_ROW_LOCKS = 536870912;
SELECT @@session.ROCKSDB_MAX_ROW_LOCKS;
@@session.ROCKSDB_MAX_ROW_LOCKS
536870912
"Setting the session scope variable back to default"
SET @@session.ROCKSDB_MAX_ROW_LOCKS = DEFAULT;
SELECT @@session.ROCKSDB_MAX_ROW_LOCKS;
@@session.ROCKSDB_MAX_ROW_LOCKS
1048576
'# Testing with invalid values in global scope #'
"Trying to set variable @@global.ROCKSDB_MAX_ROW_LOCKS to 'aaa'"
SET @@global.ROCKSDB_MAX_ROW_LOCKS = 'aaa';
Got one of the listed errors
SELECT @@global.ROCKSDB_MAX_ROW_LOCKS;
@@global.ROCKSDB_MAX_ROW_LOCKS
1048576
SET @@global.ROCKSDB_MAX_ROW_LOCKS = @start_global_value;
SELECT @@global.ROCKSDB_MAX_ROW_LOCKS;
@@global.ROCKSDB_MAX_ROW_LOCKS
1048576
SET @@session.ROCKSDB_MAX_ROW_LOCKS = @start_session_value;
SELECT @@session.ROCKSDB_MAX_ROW_LOCKS;
@@session.ROCKSDB_MAX_ROW_LOCKS
1048576
DROP TABLE valid_values;
DROP TABLE invalid_values;
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