1. with naturalOrder=true make scan the rest to be consistent with seqscan [done]

2. add leftlink to data page to privide backward scan on index (<=| op) [done]

3. ItemPointer compression for indexes with order_by_attach

4. Compression addInfo

5. Remove FROM_STRATEGY ugly magick [done]

BTREE:

1 fix changes in rum--1.0.sql [done]

2 adding using as addinfo