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YZWL/IDEA/sys/innodb_buffer_stats_by_sche...

15 lines
1.1 KiB

create definer = `mysql.sys`@localhost view sys.innodb_buffer_stats_by_schema as
select if((locate('.', `ibp`.`TABLE_NAME`) = 0), 'InnoDB System',
replace(substring_index(`ibp`.`TABLE_NAME`, '.', 1), '`', '')) AS `object_schema`,
format_bytes(sum(if((`ibp`.`COMPRESSED_SIZE` = 0), 16384, `ibp`.`COMPRESSED_SIZE`))) AS `allocated`,
format_bytes(sum(`ibp`.`DATA_SIZE`)) AS `data`,
count(`ibp`.`PAGE_NUMBER`) AS `pages`,
count(if((`ibp`.`IS_HASHED` = 'YES'), 1, NULL)) AS `pages_hashed`,
count(if((`ibp`.`IS_OLD` = 'YES'), 1, NULL)) AS `pages_old`,
round((sum(`ibp`.`NUMBER_RECORDS`) / count(distinct `ibp`.`INDEX_NAME`)), 0) AS `rows_cached`
from `information_schema`.`INNODB_BUFFER_PAGE` `ibp`
where (`ibp`.`TABLE_NAME` is not null)
group by `object_schema`
order by sum(if((`ibp`.`COMPRESSED_SIZE` = 0), 16384, `ibp`.`COMPRESSED_SIZE`)) desc;