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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);
INSERT INTO valid_values VALUES(0);
CREATE TABLE invalid_values (value varchar(255)) ENGINE=myisam;
INSERT INTO invalid_values VALUES('\'aaa\'');
INSERT INTO invalid_values VALUES('\'bbb\'');
INSERT INTO invalid_values VALUES('\'-1\'');
INSERT INTO invalid_values VALUES('\'101\'');
INSERT INTO invalid_values VALUES('\'484436\'');
SET @start_global_value = @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT;
SELECT @start_global_value;
@start_global_value
10
'# Setting to valid values in global scope#'
"Trying to set variable @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT to 100"
SET @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT = 100;
SELECT @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT;
@@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT
100
"Setting the global scope variable back to default"
SET @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT = DEFAULT;
SELECT @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT;
@@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT
10
"Trying to set variable @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT to 1"
SET @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT = 1;
SELECT @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT;
@@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT
1
"Setting the global scope variable back to default"
SET @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT = DEFAULT;
SELECT @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT;
@@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT
10
"Trying to set variable @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT to 0"
SET @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT = 0;
SELECT @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT;
@@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT
0
"Setting the global scope variable back to default"
SET @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT = DEFAULT;
SELECT @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT;
@@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT
10
"Trying to set variable @@session.ROCKSDB_TABLE_STATS_SAMPLING_PCT to 444. It should fail because it is not session."
SET @@session.ROCKSDB_TABLE_STATS_SAMPLING_PCT = 444;
ERROR HY000: Variable 'rocksdb_table_stats_sampling_pct' is a GLOBAL variable and should be set with SET GLOBAL
'# Testing with invalid values in global scope #'
"Trying to set variable @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT to 'aaa'"
SET @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT = 'aaa';
Got one of the listed errors
SELECT @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT;
@@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT
10
"Trying to set variable @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT to 'bbb'"
SET @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT = 'bbb';
Got one of the listed errors
SELECT @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT;
@@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT
10
"Trying to set variable @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT to '-1'"
SET @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT = '-1';
Got one of the listed errors
SELECT @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT;
@@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT
10
"Trying to set variable @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT to '101'"
SET @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT = '101';
Got one of the listed errors
SELECT @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT;
@@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT
10
"Trying to set variable @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT to '484436'"
SET @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT = '484436';
Got one of the listed errors
SELECT @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT;
@@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT
10
SET @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT = @start_global_value;
SELECT @@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT;
@@global.ROCKSDB_TABLE_STATS_SAMPLING_PCT
10
DROP TABLE valid_values;
DROP TABLE invalid_values;
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