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5 check-ins using file src/analyze.c version 0f54320f
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2013-08-08
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| 19:38 | Fix problems in estimating the number of rows visited by a range query using sqlite_stat4 data when the column subject to the range query is not the leftmost of the index. (check-in: 9228aaf5 user: dan tags: sqlite_stat4) | |
| 16:17 | Use a binary search instead of a linear scan when comparing a sample key against data from the sqlite_stat4 table. (check-in: e50dc305 user: dan tags: sqlite_stat4) | |
| 12:21 | Fix a segfault in "ALTER TABLE t1 ADD COLUMN b DEFAULT (-+1)". Also an assert() failure that could occur if SQLITE_ENABLE_STAT4 were not defined. (check-in: 9fec3e38 user: dan tags: sqlite_stat4) | |
| 11:48 | Fix a bug in using stat4 data to estimate the number of rows selected by a range constraint. (check-in: f783938e user: dan tags: sqlite_stat4) | |
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2013-08-07
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| 19:46 | Replace variable Index.avgEq (average number of rows in keys for which there is no sample in sqlite_stat4) with vector Index.aAvgEq. (check-in: 7b70b419 user: dan tags: sqlite_stat4) | |