mariadb/mysql-test/suite/perfschema/t/dml_hosts.test

# Tests for PERFORMANCE_SCHEMA

--source include/not_embedded.inc
--source include/have_perfschema.inc

--disable_result_log
select * from performance_schema.hosts
  limit 1;

select * from performance_schema.hosts
  where host='FOO';
--enable_result_log

--error ER_TABLEACCESS_DENIED_ERROR
insert into performance_schema.hosts
  set host='FOO',
  current_connections=1, total_connections=2;

--error ER_TABLEACCESS_DENIED_ERROR
update performance_schema.hosts
  set current_connections=12;

--error ER_TABLEACCESS_DENIED_ERROR
update performance_schema.hosts
  set current_connections=12 where host like "FOO";

--error ER_TABLEACCESS_DENIED_ERROR
delete from performance_schema.hosts
  where total_connections=1;

--error ER_TABLEACCESS_DENIED_ERROR
delete from performance_schema.hosts;

-- error ER_TABLEACCESS_DENIED_ERROR
LOCK TABLES performance_schema.hosts READ;
UNLOCK TABLES;

-- error ER_TABLEACCESS_DENIED_ERROR
LOCK TABLES performance_schema.hosts WRITE;
UNLOCK TABLES;

--echo #
--echo # MDEV-25325 column_comment for performance_schema tables
--echo #
select column_name, column_comment 
from information_schema.columns 
where table_schema='performance_schema' and table_name='hosts';