My pg_largeobject table filenode is 16404: (select relfilenode from pg_class where relname='pg_largeobject') Pages (record) count in table pg_largeobject: 73574 -> 144 MB (73574 * 2Kb) (select count(loid) from pg_largeobject) Relation pages count (in table pg_class) for table pg_largeobject: 23713 -> 185 MB (23713 * 8 Kb) (select relpages from pg_class where relname='pg_largeobject') Total: 144 MB - data in table pg_largeobject 186 MB - size on disk for table pg_largeobject Question: 185 MB - 144MB = 41 MB - what is in this memory on disk?
