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50 check-ins occurring around b2e01080cce405de.
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2014-08-09
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| 18:22 | Fix an uninitialized variable causing a problem during fts5 table initialization. (check-in: a14fa876f0 user: dan tags: fts5) | |
| 18:02 | Use multiple memory allocations for a single Fts5Structure object. This is probably less efficient but much easier to get right. (check-in: 2821825f7a user: dan tags: fts5) | |
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2014-08-08
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| 18:26 | Update requirements marks. No changes to code. (check-in: 7556bd9aa5 user: drh tags: trunk) | |
| 17:49 | Improvements to the way the query planner handles sorting costs, so that very large sorting costs do not overwhelm the loop costs. (check-in: bdaa694737 user: drh tags: trunk) | |
| 17:25 | Fix a buffer overrun in the previous commit. (Closed-Leaf check-in: 43c59c8543 user: dan tags: query-planner-fix) | |
| 16:52 | Because SQLite internally calculates query plan costs using a logarithmic scale, very large estimated sorting costs can cause all other estimated costs to be rounded down to zero. In these cases break ties between plans with the same total cost by comparing the costs with sorting excluded. This is an alternative fix for the problem addressed by [2af630c572]. (check-in: 299b957027 user: dan tags: query-planner-fix) | |
| 15:38 | The SQLITE_IOERR_BLOCKED extended error code is not longer used, so remove assert() statements and documentation for that error code. Also make other documentation improvements. (check-in: 36b7c5cefc user: drh tags: trunk) | |
| 12:51 | Reworking the documentation on integer result codes. This is a comment and documentation change only. There are no changes to code. (check-in: 54f1df7b63 user: drh tags: trunk) | |
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2014-08-07
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| 20:42 | When the estimated sorting cost overwhelms the estimated lookup cost, ensure that lookup costs are still taken into account when selecting a lookup algorithm. (check-in: 2af630c572 user: drh tags: trunk) | |
| 20:37 | Clarify the computation of compatible isOrdered by in the plan solver of the query planner. (Closed-Leaf check-in: b5e8fd575a user: drh tags: query-planner-fix) | |
| 20:25 | Remove the extraneous debugging printf() from the previous check-in. (check-in: 8f04d2c008 user: drh tags: query-planner-fix) | |
| 18:47 | Add "segment promotion" to fts5. This prevents the FTS index from growing indefinitely as data is added and deleted. (check-in: ba359d78e1 user: dan tags: fts5) | |
| 16:50 | Oops! This check-in was on trunk. But it contains a debugging printf(). Original comment: When the estimated cost to do a sort overwhelms the estimated cost to do individual table lookups, make sure that the table lookup costs are still taken into consideration when selecting the lookup algorithm. (check-in: ec5d84ba69 user: drh tags: query-planner-fix) | |
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2014-08-06
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| 20:04 | Avoid writing delete markers to the oldest segment in an FTS index. (check-in: 1baeb1cee6 user: dan tags: fts5) | |
| 18:50 | A couple more harmless compiler warnings eliminated. (check-in: bcf6d775f9 user: drh tags: trunk) | |
| 17:49 | Fix two more harmless compiler warnings. Make sure the fts3_unicode2.c file is in sync with mkunicode.tcl. (check-in: a2a60307ea user: drh tags: trunk) | |
| 16:30 | Add support for savepoints to fts5. (check-in: 3b19eba042 user: dan tags: fts5) | |
| 14:36 | Fix harmless compiler warnings. In the command-line shell, report if the ".system" command returns a non-zero result. (check-in: 1202e9771f user: drh tags: trunk) | |
| 12:00 | Merge the second InterlockedCompareExchange() fix from trunk. (check-in: 69018967f6 user: drh tags: sessions) | |
| 11:58 | Fix an obsolete comment in the func.c source file. No changes to code. (check-in: 5c6bb57d90 user: drh tags: trunk) | |
| 11:57 | On the windows VFS, do not try to make InterlockedCompareExchange an overloadable function, since sometimes it is a macro. (check-in: ab1a751e13 user: drh tags: trunk) | |
| 11:49 | Fix an obsolete comment in the func.c source file. No changes to code. (check-in: 7a145c9409 user: drh tags: sessions) | |
| 03:16 | Merge in the fix for the InterlockedCompareExchange() build issue. (check-in: 091aa5f104 user: drh tags: sessions) | |
| 03:06 | In the Win32 VFS, work around InterlockedCompareExchange() being a macro on some platforms (e.g. x64). (check-in: 7be244ce12 user: mistachkin tags: trunk) | |
| 02:03 | Merge all recent changes from trunk. (check-in: a353a8515f user: drh tags: threads) | |
| 01:51 | Merge 3.8.6 beta changes in from trunk. (check-in: b2e01080cc user: drh tags: apple-osx) | |
| 01:25 | Merge the latest 3.8.6 beta changes from trunk. (check-in: 68a6d5e2f4 user: drh tags: sessions) | |
| 01:08 | Fix typos in the opcode documentation. Comment changes only. No changes to code. (check-in: 717245d487 user: drh tags: trunk) | |
| 00:29 | A simpler fix for ticket [3a88d85f36704eebe1] - one that uses less code. The error message is not quite as good, but as this error has apparently not previously occurred in over 8 years of heavy use, that is not seen as a serious problem. (check-in: 0ad1ed8ef0 user: drh tags: trunk) | |
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2014-08-05
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| 21:31 | Ensure that aggregate functions are not used when evaluating a default value for a table column. Candidate fix for ticket [3a88d85f36704eebe134f7]. (check-in: 29ba812825 user: drh tags: trunk) | |
| 19:35 | Use doclist indexes for AND queries as well as phrases. (check-in: 5d38e6edc4 user: dan tags: fts5) | |
| 19:16 | Add the ability to evaluate IN operators as a sequence of comparisons as an alternative to the long-standing algorithm of building a lookup table. Use the new implementation in circumstances where it is likely to be faster, such as when the RHS of the IN changes between successive evaluations. (check-in: 9528682168 user: drh tags: trunk) | |
| 19:00 | Use doclist-indexes with "ORDER BY rowid ASC" fts5 queries as well. (check-in: d028ba6589 user: dan tags: fts5) | |
| 11:04 | Rename the internal Schema.flags field to Schema.schemaFlags. (check-in: 5ae80b3c8f user: drh tags: trunk) | |
| 00:53 | Improved VdbeCoverage() macros. A few minor simplifications to generated VDBE code. (Closed-Leaf check-in: 01f60027ad user: drh tags: IN-operator-improvements) | |
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2014-08-04
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| 21:26 | Part of the change in the previous check-in was incorrect and can result in an incorrect UPDATE for WITHOUT ROWID tables. This check-in fixes the problem. (check-in: ee5f6eae57 user: drh tags: IN-operator-improvements) | |
| 20:07 | Fix fts5_index.c to use doclist-indexes when possible. Only some cases work so far. (check-in: 90b82d3ef6 user: dan tags: fts5) | |
| 18:50 | Further enhancements to IN-operator processing. (check-in: 7fdf26da1d user: drh tags: IN-operator-improvements) | |
| 16:39 | Refinements to the enhanced IN-operator logic. (check-in: 92ba282146 user: drh tags: IN-operator-improvements) | |
| 15:12 | Changed my mind: This opcode name changes mere creates unnecessary diff marks between older and newer versions without significantly improving readability. Was: Rename the IsNull opcode to IfNull and rename the NotNull opcode to IfNotNull. (Closed-Leaf check-in: 2f724cbac9 user: drh tags: deadend) | |
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2014-08-02
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| 21:03 | Enhancements to the code generator for the IN operator that result in much faster queries in some cases, for example when the RHS of the IN operator changes for each row of a large table scan. (check-in: 436e884215 user: drh tags: IN-operator-improvements) | |
| 20:49 | Start changing things to use doclist indexes as required. code is not activated yet. (check-in: b8864da95d user: dan tags: fts5) | |
| 20:44 | Remove (newly) incorrect preprocessor check to fix build on WinRT. (check-in: ba78265429 user: mistachkin tags: trunk) | |
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2014-08-01
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| 21:12 | A better comment on the generated code for the NULL-in-RHS-of-IN detection logic. (check-in: 9bc1c730a3 user: drh tags: trunk) | |
| 21:00 | Improved detection and handling of NULL values on the RHS of a IN operator. (check-in: 468e730036 user: drh tags: trunk) | |
| 20:13 | Add a special case to the integrity-check code to check that the final integer in a doclist index is as expected. (check-in: c98934155c user: dan tags: fts5) | |
| 19:27 | Have the fts5 integrity-check verify that doclist indexes match the contents of the leaf pages that they index. (check-in: 37a7d3035e user: dan tags: fts5) | |
| 18:00 | Remove an unnecessary OP_Null in the IN-operator logic. Attempt to clarify comments explaining the IN-operator code, though it is not clear that the comments are correct even yet - more work to be done. (check-in: c11e55fabb user: drh tags: trunk) | |
| 15:51 | Clean up the IN operator code generation logic to make it easier to reason about. In the process, improve code generation to omit some unused OP_Null operations. (check-in: 7c6fbcfe6e user: drh tags: trunk) | |
| 15:34 | The idea of coding IN operator with a short list on the RHS as an OR expression turns out to be helpful. If the list is of length 1 or 2, the OR expression is very slightly faster, but the ephemeral table approach is clearly better for all list lengths greater than 2. Better to keep the code simple. (Closed-Leaf check-in: e13175d357 user: drh tags: IN-operator-improvements) | |