SET @start_innodb_buf_dump_status_frequency = @@global.innodb_buf_dump_status_frequency;
SELECT @start_innodb_buf_dump_status_frequency;
@start_innodb_buf_dump_status_frequency
0
SELECT COUNT(@@global.innodb_buf_dump_status_frequency);
COUNT(@@global.innodb_buf_dump_status_frequency)
1
SET @@global.innodb_buf_dump_status_frequency = 20;
SELECT @@global.innodb_buf_dump_status_frequency;
@@global.innodb_buf_dump_status_frequency
20
SET @@global.innodb_buf_dump_status_frequency = 0;
SELECT @@global.innodb_buf_dump_status_frequency;
@@global.innodb_buf_dump_status_frequency
0
SET @@global.innodb_buf_dump_status_frequency = 100;
SELECT @@global.innodb_buf_dump_status_frequency;
@@global.innodb_buf_dump_status_frequency
100
SET @@global.innodb_buf_dump_status_frequency = -1;
Warnings:
Warning	1292	Truncated incorrect innodb_buf_dump_status_frequency value: '-1'
SELECT @@global.innodb_buf_dump_status_frequency;
@@global.innodb_buf_dump_status_frequency
0
SET @@global.innodb_buf_dump_status_frequency = 101;
Warnings:
Warning	1292	Truncated incorrect innodb_buf_dump_status_frequency value: '101'
SELECT @@global.innodb_buf_dump_status_frequency;
@@global.innodb_buf_dump_status_frequency
100
SET @@global.innodb_buf_dump_status_frequency = 10.5;
ERROR 42000: Incorrect argument type to variable 'innodb_buf_dump_status_frequency'
SELECT @@global.innodb_buf_dump_status_frequency;
@@global.innodb_buf_dump_status_frequency
100
SET @@global.innodb_buf_dump_status_frequency = "abc";
ERROR 42000: Incorrect argument type to variable 'innodb_buf_dump_status_frequency'
SELECT @@global.innodb_buf_dump_status_frequency;
@@global.innodb_buf_dump_status_frequency
100
SET @@global.innodb_buf_dump_status_frequency = @start_innodb_buf_dump_status_frequency;