Re: Introduction of a new field in pg_class indicating presence of a large object in a table

Large Objects are nothing like TOAST.  There is no system level association between large objects and tables.  Sure, the DBA can choose to store a large object OID in a table, but how you'd go about figuring out which columns contain those is going to be installation specific.  Though hopefully they used a bigint data type and maybe added "oid" to the column name...I suppose it would be interesting if one could define a FK on a table and point it at pg_largeobject_metadata but that I suspect would be the extent to which we'd do something along the lines of your request.

David J.