pg_size_of_indexes.sql

   1 SELECT nspname || '.' || relname AS "relation",
   2     pg_size_pretty(pg_total_relation_size(C.oid)) AS "total_size"
   3   FROM pg_class C
   4   LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
   5   WHERE nspname NOT IN ('pg_catalog', 'information_schema')
   6     AND C.relkind = 'i'
   7     AND nspname !~ '^pg_toast'
   8   ORDER BY pg_total_relation_size(C.oid) DESC;