Query below returns tables in a database with space used by their indexes ordered from the ones using most.

Query

select table_schema as database_name,
       table_name,
       round(index_length/1024/1024,2) as index_size
from information_schema.tables
where table_type = 'BASE TABLE'
      and table_schema not in ('information_schema', 'sys',
                               'performance_schema', 'mysql')
       -- and table_schema = 'your database name'
order by index_size desc;

Columns

• database_name - database (schema) name
• table_name - table name
• index_size - disk space used by indexes

Rows

• One row represents one table
• Scope of rows: all tables in database with index space used
• Ordered by table indexes size descending

Sample results