On Tue, Apr 30, 2024 at 11:57 AM Gaurav Pant <gauravpant...@gmail.com> wrote:
> I wanted to know if there is any such system table that we can use to > identify and map the fields containing large objects and the respective > tables and if it is not already there, do we have any plans to incorporate > the same in pg_class like we have for pg_toast? > > https://www.postgresql.org/docs/current/catalog-pg-largeobject.html 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.
