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12 check-ins related to "stat4-skipscan"

2014-06-30
19:07
Attempt to use STAT4 information to estimate the selectivity of WHERE clause terms when using the skip-scan optimization. check-in: d09ca6d5 user: drh tags: trunk
2014-06-28
19:06
Add an OOM fault injection test for the new code on this branch. Closed-Leaf check-in: c96de490 user: dan tags: stat4-skipscan
17:35
Add further tests to skipscan5.test. check-in: 4b8230e8 user: dan tags: stat4-skipscan
16:06
Add header comments on new routines. Rework the sqlite3Stat4Column() routine so that is (in theory) able to deal with corrupt samples. check-in: ef5cdf94 user: drh tags: stat4-skipscan
15:26
Fix a problem with using stat4 samples of type text when estimating the rows visited by a range-query/skip-scan loop. check-in: dfb09db6 user: dan tags: stat4-skipscan
14:28
Change the VDBE to export the sqlite3MemCompare() routine and thus free where.c from the dependency on vdbeInt.h. check-in: d186d1ac user: drh tags: stat4-skipscan
14:25
Merge fixes from trunk with this branch. check-in: 6af219d1 user: dan tags: stat4-skipscan
2014-06-27
20:14
Fix a couple of problems in estimating the number of rows visited by a range query that uses a skip-scan. check-in: 219736f5 user: dan tags: stat4-skipscan
2014-06-26
22:17
Add some more IN operator tests. check-in: fb32e374 user: mistachkin tags: trunk
21:32
Fix compilation issue when STAT4 is not enabled. check-in: 74a5454a user: mistachkin tags: stat4-skipscan
20:21
Attempt to use sqlite_stat4 data to estimate the number of rows visited by a range query that uses a skip-scan. This code is largely untested. check-in: 01dc8102 user: dan tags: stat4-skipscan
2014-06-24
20:19
Fix showstat4.c so that it decodes typecodes 8 and 9 correctly. check-in: 9ca737c0 user: drh tags: trunk