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# Tests for PERFORMANCE_SCHEMA
--source include/not_embedded.inc
--source include/have_perfschema.inc
--disable_result_log
select * from performance_schema.table_lock_waits_summary_by_table
limit 1;
select * from performance_schema.table_lock_waits_summary_by_table
where object_name='FOO';
--enable_result_log
--error ER_TABLEACCESS_DENIED_ERROR
insert into performance_schema.table_lock_waits_summary_by_table
set object_type='TABLE', object_name='FOO', object_schema='BAR',
count_star=1, sum_timer_wait=2, min_timer_wait=3,
avg_timer_wait=4, max_timer_wait=5;
--error ER_TABLEACCESS_DENIED_ERROR
update performance_schema.table_lock_waits_summary_by_table
set count_star=12;
--error ER_TABLEACCESS_DENIED_ERROR
update performance_schema.table_lock_waits_summary_by_table
set count_star=12 where object_name like "FOO";
--error ER_TABLEACCESS_DENIED_ERROR
delete from performance_schema.table_lock_waits_summary_by_table
where count_star=1;
--error ER_TABLEACCESS_DENIED_ERROR
delete from performance_schema.table_lock_waits_summary_by_table;
-- error ER_TABLEACCESS_DENIED_ERROR
LOCK TABLES performance_schema.table_lock_waits_summary_by_table READ;
UNLOCK TABLES;
-- error ER_TABLEACCESS_DENIED_ERROR
LOCK TABLES performance_schema.table_lock_waits_summary_by_table 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='table_lock_waits_summary_by_table';
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