At 02:29 PM 10/21/2002 +0200, Pavel Cisar wrote:

>
>Dead version = no longer needed version. The problem here is that the
>back-version chain is always evaluated in full length to detect these
>versions, although they were already reported to GC thread and thus
>evaluation of these versions is unnecessary (and costly when they are on
>several other pages, fragmented etc.).
>

If I may quibble a bit, the record is not "full length" but
run length encoded. Quite a bit of difference.

Jim Starkey