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12 check-ins related to "stat4-skipscan"
|19:07||Attempt to use STAT4 information to estimate the selectivity of WHERE clause terms when using the skip-scan optimization. (check-in: d09ca6d5ef user: drh tags: trunk)|
|19:06||Add an OOM fault injection test for the new code on this branch. (Closed-Leaf check-in: c96de490ac user: dan tags: stat4-skipscan)|
|17:35||Add further tests to skipscan5.test. (check-in: 4b8230e8fe 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: ef5cdf949b 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: dfb09db6d4 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: d186d1ac3c user: drh tags: stat4-skipscan)|
|14:25||Merge fixes from trunk with this branch. (check-in: 6af219d1b8 user: dan tags: stat4-skipscan)|
|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: 219736f54d user: dan tags: stat4-skipscan)|
|22:17||Add some more IN operator tests. (check-in: fb32e374b7 user: mistachkin tags: trunk)|
|21:32||Fix compilation issue when STAT4 is not enabled. (check-in: 74a5454a71 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: 01dc810259 user: dan tags: stat4-skipscan)|
|20:19||Fix showstat4.c so that it decodes typecodes 8 and 9 correctly. (check-in: 9ca737c0b4 user: drh tags: trunk)|