Peter Pilsl <pilsl@goldfisch.at> writes:
> A table contains many entries and each entry includes a single
> blob-oid. In a databaseprocessing perlscript I need to delete such a
> blob and perform the lo_unlink and later I rollback the session without
> commiting (and even no autocommiting) in between. In my opinion this
> should have left the original blob unchanged.
Sorry, you lose: in current releases a blob is a table, and table
deletion is not rollback-able (the physical Unix file is deleted
immediately...)
This will be fixed in 7.1.
regards, tom lane