Stephen Frost <sfrost@snowman.net> writes:
> To wit, our docs specifically say:
> ----
> Include large objects in the dump. This is the default behavior except
> when --schema, --table, or --schema-only is specified, so the -b switch
> is only useful to add large objects to selective dumps.
> ----
Clearly, this is an oversimplification.
> However, a 'pg_dump -s -b' won't include blobs, which appears to be due
> to the masking performed in _tocEntryRequired() whereby we strip the
> REQ_DATA out if we are in schema-only mode.
> Further, though perhaps less surprising, we don't include blobs when
> --section=post-data is set, and only the definition of the blob (but no
> data) when --section=pre-data is used.
IMO, blobs are data, so those behaviors are correct. The docs should
be fixed to match the code.
regards, tom lane