Es query nos da información de cuáles tablas son mas grandes en nuestra base de datos.
select table_schema as database_name, table_name, round( (data_length + index_length) / 1024 / 1024, 2) as total_size, round( (data_length) / 1024 / 1024, 2) as data_size, round( (index_length) / 1024 / 1024, 2) as index_size from information_schema.tables where table_schema not in ('information_schema', 'mysql', 'performance_schema' ,'sys') and table_type = 'BASE TABLE' and table_schema = 'your database name' order by total_size desc limit 10;