SELECT n.nspname AS schema_name,
c2.relname AS table_name,
Count(*) AS number_of_indexes,
Count(*) FILTER (WHERE i.indisunique=true) AS number_of_unique_indexes
FROM pg_catalog.pg_class c INNER JOIN pg_catalog.pg_index i ON i.indexrelid = c.oid
INNER JOIN pg_catalog.pg_class c2 ON i.indrelid = c2.oid
INNER JOIN pg_catalog.pg_authid u ON u.oid = c.relowner
INNER JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace
WHERE c.relkind IN ('i') AND c2.relkind='r'
AND n.nspname NOT IN ('pg_catalog', 'pg_toast')
AND (n.nspname = 'public' OR u.rolname <> 'postgres')
GROUP BY n.nspname, c2.relname 
HAVING Count(*)>5
ORDER BY Count(*) DESC,  n.nspname, c2.relname;