Update metadata with new metric

postgres/metadata.csv

@@ -45,8 +45,10 @@ postgresql.autovacuumed,count,,,,The number of times this table has been vacuume
 postgresql.analyzed,count,,,,The number of times this table has been manually analyzed.,0,postgres,analyze,
 postgresql.autoanalyzed,count,,,,The number of times this table has been analyzed by the autovacuum daemon.,0,postgres,auto analyze,
 postgresql.index_rows_read,gauge,,row,second,The number of index entries returned by scans on this index.,0,postgres,idx rows read,
-postgresql.table_size,gauge,,byte,,"The total disk space used by the specified table. Includes TOAST, free space map, and visibility map. Excludes indexes.",0,postgres,tbl size,
+postgresql.table_size,gauge,,byte,,"The disk space used by the specified table with TOAST data. Free space map and visibility map are not included.",0,postgres,tbl size,
+postgresql.relation_size,gauge,,byte,,"The disk space used by the specified table. TOAST data, indexes, free space map and visibility map are not included.",0,postgres,relation size,
 postgresql.index_size,gauge,,byte,,The total disk space used by indexes attached to the specified table.,0,postgres,idx size,
+postgresql.toast_size,gauge,,byte,,The total disk space used by the toast table attached to the specified table.,0,postgres,toast size,
 postgresql.total_size,gauge,,byte,,"The total disk space used by the table, including indexes and TOAST data.",0,postgres,tot size,
 postgresql.table.count,gauge,,table,,The number of user tables in this database.,0,postgres,tbl count,
 postgresql.max_connections,gauge,,connection,, The maximum number of client connections allowed to this database.,0,postgres,max conns,
@@ -121,3 +123,6 @@ postgresql.replication_slot.xmin_age,gauge,,transaction,,"The age of the oldest
 postgresql.replication_slot.restart_delay_bytes,gauge,,byte,,"The amount of WAL bytes that the consumer of this slot may require and won't be automatically removed during checkpoints unless it exceeds max_slot_wal_keep_size parameter. Nothing is reported if there's no WAL reservation for this slot.",-1,postgres,repslot restart,
 postgresql.replication_slot.confirmed_flush_delay_bytes,gauge,,byte,,"The delay in bytes between the current WAL position and last position this slot's consumer confirmed. This is only available for logical replication slots",-1,postgres,repslot flush,
 postgresql.pg_stat_statements.dealloc,count,,,,"The number of times pg_stat_statements had to evict least executed queries because pg_stat_statements.max was reached.",-1,postgres,pgss dealloc,
+postgresql.relation.pages,gauge,,,,"Size of a table in pages (1 page == 8KB by default). This is only an estimation used by the planner and is updated by VACUUM or ANALYZE.",0,postgres,relation pages,
+postgresql.relation.tuples,gauge,,,,"Number of live rows in the table. This is only an estimation used by the planner and is updated by VACUUM or ANALYZE. If the table has never been vacuumed or analyze, -1 will be reported.",0,postgres,relation tuples,
+postgresql.relation.all_visible,gauge,,,,"Number of pages that are marked as all visible in the table's visibility map. This is only an estimation used by the planner and is updated by VACUUM or ANALYZE.",0,postgres,relation all_visible,