- Rework code to instantiate keys when doing cursor-previous walks.
Don't bother trying to match the binary page-search key placement, just instantiate every Nth
key reading forward through the page (the probability of a page we've not searched before
being read by a cursor in the backward direction, followed by searches, doesn't seem high).
Take the recent prefix compression work in
WT-7234 into consideration, keys which can be quickly
built from the page's largest group of prefix-compressed keys don't need to be instantiated.
Additionally, there's no reason to do this work if the page doesn't have long runs of
Additionally, we should never instantiate overflow keys.
- Remove format's support for the key_gap configuration string.
- Fix a comment.
- Put the key_gap configuration string back into the metadata so downgrade works.
- Regularize "no longer supported" option language. | 18 May 21 00:11 UTC
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