8.8. Index Usage Metrics #
Metrics based on the pg_stat_all_indexes and pg_statio_all_indexes views:
postgresql_indexes_invalidpostgresql_indexes_blocks_hit_totalpostgresql_indexes_blocks_read_totalpostgresql_indexes_scan_totalpostgresql_indexes_size_bytespostgresql_indexes_tuples_fetch_totalpostgresql_indexes_tuples_read_total