// work gets fired twice, in that case, the second time it is
// fired, this overflow page may not part of this row chain
// that is being updated.
Page firstPageOnColumnChain = getOverflowPage(overflowPage);
PageTimeStamp ts = firstPageOnColumnChain.currentTimeStamp();
firstPageOnColumnChain.unlatch();
RawTransaction rxact = (RawTransaction)owner.getTransaction();
ReclaimSpace work =
new ReclaimSpace(ReclaimSpace.COLUMN_CHAIN,