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select * from performance_schema.file_instances limit 1; select * from performance_schema.file_instances where file_name='FOO'; insert into performance_schema.file_instances set file_name='FOO', event_name='BAR', open_count=12; ERROR 42000: INSERT command denied to user 'root'@'localhost' for table 'file_instances' update performance_schema.file_instances set file_name='FOO'; ERROR 42000: UPDATE command denied to user 'root'@'localhost' for table 'file_instances' delete from performance_schema.file_instances where event_name like "wait/%"; ERROR 42000: DELETE command denied to user 'root'@'localhost' for table 'file_instances' delete from performance_schema.file_instances; ERROR 42000: DELETE command denied to user 'root'@'localhost' for table 'file_instances' LOCK TABLES performance_schema.file_instances READ; ERROR 42000: SELECT, LOCK TABLES command denied to user 'root'@'localhost' for table 'file_instances' UNLOCK TABLES; LOCK TABLES performance_schema.file_instances WRITE; ERROR 42000: SELECT, LOCK TABLES command denied to user 'root'@'localhost' for table 'file_instances' UNLOCK TABLES; ### ### Bug#26152751: INNODB LEAKS MEMORY, PERFORMANCE_SCHEMA FILE_INSTANCES ### #SQL-IB3129987-252773.IBD ### CREATE DATABASE db_26152751; USE db_26152751; SELECT FILE_NAME FROM performance_schema.file_instances WHERE FILE_NAME LIKE "%t_db_26152751%"; FILE_NAME CREATE TABLE t_db_26152751 (a INT) ENGINE=MYISAM; SELECT FILE_NAME FROM performance_schema.file_instances WHERE FILE_NAME LIKE "%t_db_26152751%"; FILE_NAME t_db_26152751.frm t_db_26152751.MYI t_db_26152751.MYD RENAME TABLE t_db_26152751 to t_db_26152751_new; SELECT FILE_NAME FROM performance_schema.file_instances WHERE FILE_NAME LIKE "%t_db_26152751%"; FILE_NAME t_db_26152751_new.frm t_db_26152751_new.MYI t_db_26152751_new.MYD RENAME TABLE t_db_26152751_new to t_db_26152751; SELECT FILE_NAME FROM performance_schema.file_instances WHERE FILE_NAME LIKE "%t_db_26152751%"; FILE_NAME t_db_26152751.frm t_db_26152751.MYI t_db_26152751.MYD ALTER TABLE t_db_26152751 ADD COLUMN b INT; SELECT FILE_NAME FROM performance_schema.file_instances WHERE FILE_NAME LIKE "%t_db_26152751%"; FILE_NAME t_db_26152751.frm t_db_26152751.MYI t_db_26152751.MYD DROP TABLE t_db_26152751; SELECT FILE_NAME FROM performance_schema.file_instances WHERE FILE_NAME LIKE "%t_db_26152751%"; FILE_NAME CREATE TABLE t_db_26152751 (a INT) ENGINE=INNODB; SELECT FILE_NAME FROM performance_schema.file_instances WHERE FILE_NAME LIKE "%t_db_26152751%"; FILE_NAME t_db_26152751.frm t_db_26152751.ibd RENAME TABLE t_db_26152751 to t_db_26152751_new; SELECT FILE_NAME FROM performance_schema.file_instances WHERE FILE_NAME LIKE "%t_db_26152751%"; FILE_NAME t_db_26152751_new.frm t_db_26152751_new.ibd RENAME TABLE t_db_26152751_new to t_db_26152751; SELECT FILE_NAME FROM performance_schema.file_instances WHERE FILE_NAME LIKE "%t_db_26152751%"; FILE_NAME t_db_26152751.frm t_db_26152751.ibd ALTER TABLE t_db_26152751 ADD COLUMN b INT; SELECT FILE_NAME FROM performance_schema.file_instances WHERE FILE_NAME LIKE "%t_db_26152751%"; FILE_NAME t_db_26152751.frm t_db_26152751.ibd DROP TABLE t_db_26152751; SELECT FILE_NAME FROM performance_schema.file_instances WHERE FILE_NAME LIKE "%t_db_26152751%"; FILE_NAME DROP DATABASE db_26152751;