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20 ancestors of d95d0313c447f5baeabdb17284d8606331ab7d49
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2014-10-24
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| 19:28 | Enhance the automatic index logic so that it creates a partial index when doing so gives the same answer for less work. UPDATE: This change introduced a bug described by ticket [2326c258d02ead33]. (check-in: d95d0313 user: drh tags: trunk) | |
| 15:26 | Honor a high likelihood() on range constraints. (check-in: 401235ed user: drh tags: trunk) | |
| 14:32 | Get the likelihood() functions working on operators like BETWEEN that create virtual terms in the WHERE-clause analysis. (check-in: 03d0498d user: drh tags: trunk) | |
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2014-10-23
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| 01:01 | Implement sqlite3_create_collation() by invoking sqlite3_create_collation_v2() with a NULL destructor argument. This saves a little space. (check-in: 9762ad06 user: drh tags: trunk) | |
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2014-10-22
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| 20:07 | Disable the use of strchrnul() unless specifically enabled by compile-time options. (check-in: e580470d user: drh tags: trunk) | |
| 19:57 | Change the 0x800 bit of SQLITE_TESTCTRL_OPTIMIZATIONS so that it disables the loading of STAT3 and STAT4 content, not just the using of that content. Change the internal name of that bit to SQLITE_Stat34. (check-in: ca3b00c4 user: drh tags: trunk) | |
| 15:27 | Take steps to avoid misestimating range query costs based on STAT4 data due to the roundoff error of converting from integers to LogEst and back to integers. (check-in: 3c933bf9 user: drh tags: trunk) | |
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2014-10-21
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| 21:56 | Call fsync() right after ftruncate() when in journal_mode=TRUNCATE and when synchronous=FULL in order to ensure that transactions are durable across a power loss that happens moments after the commit. Proposed fix for https://bugzilla.mozilla.org/show_bug.cgi?id=1072773. (check-in: 3e922208 user: drh tags: trunk) | |
| 18:16 | Further tuning of the cost estimates for skip-scan loops, especially for cases when skip-scan loops are in competition with regular loops. (check-in: a27861c2 user: drh tags: trunk) | |
| 16:01 | Add WHERETRACE debugging output to the whereLoopAdjustCost() routine. (check-in: ec1e942f user: drh tags: trunk) | |
| 01:05 | If a skip-scan is a proper subset of some other scan, then adjust the cost of the skip-scan upward so that it is more costly than the other scan. Such a cost imbalance can arise under STAT4 because of difficulties in getting an accurate estimate for skip-scans. (check-in: f4b22a26 user: drh tags: trunk) | |
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2014-10-17
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| 21:35 | Fix a (probably harmless) bug in the CSV output mode of the command-line shell. (check-in: 19fe4a0a user: drh tags: trunk) | |
| 11:24 | Version 3.8.7 (check-in: e4ab094f user: drh tags: trunk, release, version-3.8.7) | |
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2014-10-16
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| 21:39 | Work around MSVC not being able to deduce that a local variable was initialized in a called function. (check-in: 06c576c1 user: mistachkin tags: trunk) | |
| 18:34 | Changes to work around Win32 and MSVCRT APIs that are not present on Windows CE 200x. (check-in: 1418c006 user: mistachkin tags: trunk) | |
| 11:45 | Update the vdbe-compress.tcl script to account for expressions of the form (123>var), where "var" should be replaced with a reference to a union member. (check-in: 640345d8 user: dan tags: trunk) | |
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2014-10-15
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| 15:28 | Update releasetest.tcl so that x86-64 runs a superset of the x86 tests. (check-in: 3c1e70f4 user: dan tags: trunk) | |
| 14:45 | Fix a problem causing lock5.test to fail in mmap-mode. (check-in: b3e7b446 user: dan tags: trunk) | |
| 11:55 | Add a four-byte prefix to the BtShared.pTmpSpace buffer to avoid reading before the beginning of an allocation. (check-in: 9386bfca user: drh tags: trunk) | |
| 11:31 | Rearrange an expression in vdbemem.c to avoid a (harmless) reference to a possibly unitialized variable. (check-in: 4a7b3fa0 user: dan tags: trunk) | |
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2014-10-14
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| 20:25 | Make sure new sqlite3_vtab objects created by the xCreate() virtual table method are initialized by the system, in accordance with the documentation. (check-in: eab82330 user: drh tags: trunk) | |