drh c8bbce1e6a If a skip-scan is a proper subset of some other scan, then adjust the ...

cost of the skip-scan upward so that it is more costly than the other scan.
Such a cost imbalance can arise under STAT4 because of difficulties in getting
an accurate estimate for skip-scans.

FossilOrigin-Name: f4b22a2620a5dc48949048c2ecbd226755d4b2c3

2014-10-21 01:05:09 +00:00

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