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10 check-ins using file src/btree.c version 11d12621

2014-11-05
19:26
Change the query planner to do a better job of estimating the number rows selected by a BETWEEN operator using STAT4 when both upper and lower bounds are contained within the same sample. check-in: 2d36be5d user: drh tags: trunk
15:57
Make sure that NULL results from OP_Column are fully and completely NULL and do not have the MEM_Ephem bit set. Fix for ticket [094d39a4c95ee4]. check-in: 42705fd7 user: drh tags: trunk
14:19
Add a test case to check that the previous commit is effective. check-in: 948d6e5d user: dan tags: trunk
13:13
Enhance whereLoopCheaperProperSubset(X,Y) so that it does not report true if X uses skip-scan less than Y, since in that case X might deserve to be cheaper even if it is a proper subset. check-in: c106b755 user: drh tags: trunk
09:07
Add the ".scanstats on" command to the shell tool. Executing this command causes the shell tool to print values from sqlite3_stmt_scanstatus() after each query is run. check-in: 7974c0ed user: dan tags: trunk
2014-11-04
21:38
Improved output formatting for the showstat4 tool. check-in: 7df82c46 user: drh tags: trunk
19:52
Skip tests that require WAL mode when it is not enabled. Closed-Leaf check-in: 6fc4ead2 user: mistachkin tags: winMmapNoWal
19:37
For the Win32 VFS, allow memory mapped files to work when compiled without WAL support. check-in: 1fc7e2f3 user: mistachkin tags: winMmapNoWal
17:23
Add various requirements evidence marks for sqlite3_config() options. check-in: d423349d user: drh tags: trunk
14:22
Change the definition of SQLITE_CONFIG_SCRATCH so that at most one scratch buffer is used per thread. Use the generic heap memory allocator for the WalIterator object when running a checkpoint. check-in: 391c9b85 user: drh tags: trunk