Robert Haas <rhaas(at)postgresql(dot)org> writes:
> hash: Add write-ahead logging support.
This bit in access/hash/README, lines 368ff, appears obsolete:
Although we can survive a failure to split a bucket, a crash is likely to
corrupt the index, since hash indexes are not yet WAL-logged.
Perhaps we can just delete that para. If not, what should it say now?
regards, tom lane