path: root/mysql-test/suite/perfschema/t/misc.test

# Tests for PERFORMANCE_SCHEMA
# Miscelaneous

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

#
# Bug#12790483 OBJECTS_SUMMARY_GLOBAL_BY_TYPE AND RENAME TABLE
#
# Rename table leaves old tables names behind in
# performance_schema.objects_summary_global_by_type
#
SELECT object_schema, object_name FROM performance_schema.objects_summary_global_by_type
  WHERE object_schema='test';

CREATE TABLE test.t_before(a INT);
INSERT INTO test.t_before VALUES (1);

# The new table should appear in OBJECTS_SUMMARY_GLOBAL_BY_TYPE.

SELECT object_schema, object_name FROM performance_schema.objects_summary_global_by_type
  WHERE object_schema='test';

RENAME TABLE test.t_before TO test.t_after;

# The renamed table should appear in OBJECTS_SUMMARY_GLOBAL_BY_TYPE, but only
# after it is accessed.

SELECT COUNT(*) FROM test.t_after;

SELECT object_schema, object_name FROM performance_schema.objects_summary_global_by_type
  WHERE object_schema='test';

DROP TABLE test.t_after;

# The renamed table should not appear in OBJECTS_SUMMARY_GLOBAL_BY_TYPE.

SELECT object_schema, object_name FROM performance_schema.objects_summary_global_by_type
  WHERE object_schema='test';

#
# Verify table views are ignored by the table io instrumentation.
#

CREATE TABLE test.t1(a INT);
INSERT INTO test.t1 VALUES (1);
CREATE VIEW test.v1 AS SELECT * FROM test.t1;
SELECT COUNT(*) FROM test.v1;

# Verify that a PFS table share was not created for the view.
SELECT object_schema, object_name FROM performance_schema.objects_summary_global_by_type
  WHERE object_schema='test';

DROP VIEW test.v1;
DROP TABLE test.t1;

SELECT object_schema, object_name FROM performance_schema.objects_summary_global_by_type
  WHERE object_schema='test';


#
# Bug#45496 Performance schema: assertion fails in
# ha_perfschema::rnd_init:223
#

--disable_result_log
SELECT EVENT_ID FROM performance_schema.events_waits_current
WHERE THREAD_ID IN
  (SELECT THREAD_ID FROM performance_schema.threads)
AND EVENT_NAME IN
  (SELECT NAME FROM performance_schema.setup_instruments
   WHERE NAME LIKE "wait/synch/%")
LIMIT 1;
--enable_result_log

#
# Bug#45088 Should not be able to create tables of engine PERFORMANCE_SCHEMA
#

--error ER_CANT_CREATE_TABLE
create table test.t1(a int) engine=performance_schema;

# The table should not appear in OBJECTS_SUMMARY_GLOBAL_BY_TYPE

SELECT object_schema, object_name FROM performance_schema.objects_summary_global_by_type
  WHERE object_schema='test';

#
# Bug#44897 Performance Schema: can create a ghost table in another database
#

--error ER_CANT_CREATE_TABLE
create table test.t1 like performance_schema.events_waits_current;

# The table should not appear in OBJECTS_SUMMARY_GLOBAL_BY_TYPE

SELECT object_schema, object_name FROM performance_schema.objects_summary_global_by_type
  WHERE object_schema='test';

#
# Bug#44898 PerformanceSchema: can create a table in db performance_schema, cannot insert
#

--error ER_TABLEACCESS_DENIED_ERROR
create table performance_schema.t1(a int);

# The table should not appear in OBJECTS_SUMMARY_GLOBAL_BY_TYPE

SELECT object_schema, object_name FROM performance_schema.objects_summary_global_by_type
  WHERE object_schema='test';

#
# Bug#51447 performance schema evil twin files
#

--disable_warnings
drop table if exists test.ghost;
--enable_warnings

create table test.ghost (a int, b int);
alter table test.ghost add index index_a(a);
alter table test.ghost add index index_b(b);
insert into test.ghost values (1, 3);
insert into test.ghost values (2, 4);
select * from test.ghost;

drop table test.ghost;

# Shoud return nothing
select * from performance_schema.file_instances
  where file_name like "%ghost%";

#
# Bug#52586 Misleading error message on attempt to access
#           a P_S table using a wrong name

--error ER_NO_SUCH_TABLE
select * from performance_schema.no_such_table;

#
# Bug#12370950 - 60905: TABLE_IO_WAITS_SUMMARY_BY_INDEX_USAGE AGGREGATES NON-INSERT DML WRONGLY
#

--disable_warnings
DROP TABLE IF EXISTS t_60905;
--enable_warnings
CREATE TABLE t_60905 (i INT, j INT, KEY(i)) ENGINE = InnoDB;
INSERT INTO t_60905 VALUES
(1,2), (3,4), (5,6), (7,8), (9,10);

# should delete with a "single" PRIMARY lookup (2 PRIMARY fetch, 1 PRIMARY delete)
DELETE FROM t_60905 WHERE i = 1;

# should delete with a full scan (5 NULL fetch, 1 NULL delete)
DELETE FROM t_60905 WHERE j = 8;

# show the instrument data
SELECT object_schema,
       object_name,
       index_name,
       count_fetch,
       count_insert,
       count_update,
       count_delete
  FROM performance_schema.table_io_waits_summary_by_index_usage
 WHERE object_schema = 'test'
   AND object_name = 't_60905';

DROP TABLE t_60905;


#
# Bug#11929832 - EVENTS_STATEMENTS_HISTORY HAS ERRORS=0 WHEN THERE ARE ERRORS
#
# Verify that SQL errors are properly counted.

use test;
truncate performance_schema.events_statements_history;
truncate performance_schema.events_statements_history_long;

--error ER_NO_SUCH_TABLE
select * from t1;

--echo 
select mysql_errno, returned_sqlstate, message_text, errors, warnings
  from performance_schema.events_statements_history where errors > 0;
  
--echo
select mysql_errno, returned_sqlstate, message_text, errors, warnings from 
  performance_schema.events_statements_history_long where errors > 0;

#
# Bug#20519832 - TRUNCATED SQL_TEXT values are not suffixed with '...'
#
# Verify that truncated SQL statements are suffixed with '...'

use performance_schema;
truncate performance_schema.events_statements_history;

# Should truncate at 1024 bytes (1024 characters)
select 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa' AS A;

# Should truncate at 1024 bytes (487 characters)

select _utf8mb4 'васÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑвасÑ' as B;

select count(*) from events_statements_history where sql_text like "%...";


#
# MDEV-10486 MariaDB 10.x does not update rows_examined in performance_schema tables
# Verify that the rows_examined counter is set properly.

use test;
create table t1 (id int);
insert into t1 values (1), (2), (3);
truncate performance_schema.events_statements_history;
select * from t1;
insert into t1 select RAND()*10000 from t1;
select sql_text, rows_examined from performance_schema.events_statements_history;
drop table t1;

--echo #
--echo # MDEV-17896 Assertion `pfs->get_refcount() > 0' failed
--echo # in release_table_share
--echo #

# There must be at least one available slot in PFS table_share_array for
# this test to be meaningful. If there are no free slots we must
# restart mysqld, it is the only way to reset PFS table_share_array
let $query= SELECT COUNT(*)<@@performance_schema_max_table_instances FROM
  performance_schema.objects_summary_global_by_type WHERE OBJECT_TYPE='TABLE';

let $free_slots_available= `$query`;

if (!$free_slots_available)
{
  source include/restart_mysqld.inc;
}
eval $query;

CREATE TABLE t0(a INT);

# TABLE_SHARE must be cached in the table definition cache.
SELECT * FROM t0;

# Dropping t0 using DROP TEMPORARY frees up a slot in table_share_array,
# but the persistent table is not correctly dropped, i.e. TABLE_SHARE::m_psi
# still points to that slot in table_share_array.
DROP TEMPORARY TABLE IF EXISTS t0;

# Try re-using each and every slot in PFS table_share_array. If bug is
# there, we re-use t0 slot.
# The newly created table that re-uses the t0 slot ends up
# resetting the PFS_table_share refcount.
let $i= `SELECT @@performance_schema_max_table_instances`;
disable_query_log;
while ($i)
{
  # Memory engine is here to reduce disk IO
  eval CREATE TABLE t$i(a INT) ENGINE=MEMORY;
  eval DROP TABLE t$i;
  dec $i;
}
enable_query_log;

# FLUSH TABLE crashes the server when PFS_table_share is found with
# an unexpected refcount.
FLUSH TABLE t0;
DROP TABLE t0;