Hot to Get the Index and Data Size of a Table In PostgreSQL

SELECT
    table_name AS table_full_name,
    pg_size_pretty(pg_table_size(table_name)) AS "Data Size",
    pg_size_pretty(pg_indexes_size(table_name)) AS "Index Size",
    pg_size_pretty(pg_total_relation_size(table_name)) AS "Total Size"
FROM
    information_schema.tables
WHERE
    table_schema = 'public'
ORDER BY
    pg_total_relation_size(table_name)
    DESC;