Marcin Barczynski <mbarczyn...@starfishstorage.com> writes: > It's always /opt/prod/pg/9.6/base/18370/1108887031. Unfortunately, no trace > of it in pg_class:
It's probably a mapped system catalog, which will have relfilenode = 0.
Try
SELECT relname FROM pg_class WHERE pg_relation_filenode(oid) = 1108887031;
My guess is that whichever catalog it is is badly bloated.
regards, tom lane
