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

# Tests for PERFORMANCE_SCHEMA

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

--disable_result_log
select * from performance_schema.host_cache
  where IP like '%' limit 1;

select * from performance_schema.host_cache
  where IP='localhost';
--enable_result_log

--error ER_TABLEACCESS_DENIED_ERROR
insert into performance_schema.host_cache
  set IP='FOO', SUM_BLOCKING_ERRORS=1, COUNT_FCRDNS_ERRORS=2;

--error ER_TABLEACCESS_DENIED_ERROR
update performance_schema.host_cache
  set COUNT_UNKNOWN_ERRORS=12;

--error ER_TABLEACCESS_DENIED_ERROR
update performance_schema.host_cache
  set SUM_BLOCKING_ERRORS=12 where IP='127.0.0.1';

select HOST from performance_schema.host_cache
  where IP='::1';

--error ER_TABLEACCESS_DENIED_ERROR
delete from performance_schema.host_cache
  where IP='::1';

--error ER_TABLEACCESS_DENIED_ERROR
delete from performance_schema.host_cache;

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

--error ER_TABLEACCESS_DENIED_ERROR
LOCK TABLES performance_schema.host_cache 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='host_cache';