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CREATE TABLE valid_values (value varchar(255)) ENGINE=myisam;
INSERT INTO valid_values VALUES(1);
INSERT INTO valid_values VALUES(0);
INSERT INTO valid_values VALUES('on');
CREATE TABLE invalid_values (value varchar(255)) ENGINE=myisam;
INSERT INTO invalid_values VALUES('\'aaa\'');
INSERT INTO invalid_values VALUES('\'bbb\'');
SET @start_global_value = @@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD;
SELECT @start_global_value;
@start_global_value
0
'# Setting to valid values in global scope#'
"Trying to set variable @@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD to 1"
SET @@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD = 1;
SELECT @@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD;
@@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD
1
"Setting the global scope variable back to default"
SET @@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD = DEFAULT;
SELECT @@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD;
@@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD
0
"Trying to set variable @@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD to 0"
SET @@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD = 0;
SELECT @@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD;
@@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD
0
"Setting the global scope variable back to default"
SET @@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD = DEFAULT;
SELECT @@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD;
@@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD
0
"Trying to set variable @@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD to on"
SET @@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD = on;
SELECT @@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD;
@@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD
1
"Setting the global scope variable back to default"
SET @@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD = DEFAULT;
SELECT @@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD;
@@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD
0
"Trying to set variable @@session.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD to 444. It should fail because it is not session."
SET @@session.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD = 444;
ERROR HY000: Variable 'rocksdb_enable_write_thread_adaptive_yield' is a GLOBAL variable and should be set with SET GLOBAL
'# Testing with invalid values in global scope #'
"Trying to set variable @@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD to 'aaa'"
SET @@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD = 'aaa';
Got one of the listed errors
SELECT @@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD;
@@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD
0
"Trying to set variable @@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD to 'bbb'"
SET @@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD = 'bbb';
Got one of the listed errors
SELECT @@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD;
@@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD
0
SET @@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD = @start_global_value;
SELECT @@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD;
@@global.ROCKSDB_ENABLE_WRITE_THREAD_ADAPTIVE_YIELD
0
DROP TABLE valid_values;
DROP TABLE invalid_values;
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