select plugin_status from information_schema.plugins where plugin_name='feedback';
plugin_status
ACTIVE
SELECT variable_value INTO @feedback_used FROM information_schema.feedback where variable_name = 'FEEDBACK used';
SELECT variable_value = @feedback_used + 1 as 'MUST BE 1' FROM information_schema.feedback where variable_name = 'FEEDBACK used';
MUST BE 1
1
select * from information_schema.feedback where variable_name like 'feed%'
       and variable_name not like '%_uid' and variable_name not like 'FEEDBACK used'
       and variable_name not like '%debug%';
VARIABLE_NAME	VARIABLE_VALUE
FEEDBACK version	1.1
FEEDBACK_HTTP_PROXY	
FEEDBACK_SEND_RETRY_WAIT	60
FEEDBACK_SEND_TIMEOUT	60
FEEDBACK_URL	http://mariadb.org/feedback_plugin/post
FEEDBACK_USER_INFO	mysql-test
SELECT VARIABLE_VALUE>0, VARIABLE_NAME FROM INFORMATION_SCHEMA.FEEDBACK
WHERE VARIABLE_NAME LIKE 'Collation used %'
ORDER BY VARIABLE_NAME;
VARIABLE_VALUE>0	VARIABLE_NAME
1	Collation used binary
1	Collation used latin1_swedish_ci
1	Collation used utf8mb4_bin
1	Collation used utf8_bin
1	Collation used utf8_general_ci
set global sql_mode=ONLY_FULL_GROUP_BY;
# restart
6: feedback plugin: report to 'http://mariadb.org/feedback_plugin/post' was sent
6: feedback plugin: server replied 'ok'