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Parents and children of check-in [a8ae93f0]

2014-04-29
12:01
Fix a test case so that it updates sqlite_stat1 consistently. check-in: 2dc5a0b5 user: dan tags: experimental-costs
2014-04-28
20:11
Do not reduce the number of rows scanned at all for "IS NOT NULL" constraints. Fix a bug in calculating the number of rows visited by scans of partial indicies. check-in: a8ae93f0 user: dan tags: experimental-costs
19:34
The trunk assumes that an open range constraint on an indexed term (col>?) term matches 1/4 of the indexed rows, and that a closed constraint (col BETWEEN ? AND ?) matches 1/64. Change this branch to do the same. check-in: 4047ac75 user: dan tags: experimental-costs