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100 descendants of fb1048cb2b613a0d
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2014-08-11
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| 17:41 | Further clarification and typo fixes for the previous comment change. check-in: 87ef9e2f user: drh tags: trunk | |
| 17:40 | Clarify the comment explaining the meaning of the SQLITE_WIN32_GETVERSIONEX macro in the Windows VFS. check-in: 69714287 user: drh tags: trunk | |
| 17:38 | Fix for #ifdef issue with GetVersionEx in the Win32 VFS. check-in: 1a0d466d user: mistachkin tags: trunk | |
| 17:37 | Add a few more requirements tests. check-in: b5652439 user: drh tags: trunk | |
| 15:54 | Updates to evidence marks and requirements. No changes to code. check-in: 62d38308 user: drh tags: trunk | |
| 14:21 | Fix harmless compiler warnings. check-in: 52b03f04 user: drh tags: trunk | |
| 13:53 | Changes that will perhaps enable SQLite to work better on VxWorks. check-in: de27c742 user: drh tags: trunk | |
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2014-08-08
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| 18:26 | Update requirements marks. No changes to code. check-in: 7556bd9a 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: bdaa6947 user: drh tags: trunk | |
| 17:25 | Fix a buffer overrun in the previous commit. Closed-Leaf check-in: 43c59c85 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: 299b9570 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: 36b7c5ce 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: 54f1df7b 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: 2af630c5 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: b5e8fd57 user: drh tags: query-planner-fix | |
| 20:25 | Remove the extraneous debugging printf() from the previous check-in. check-in: 8f04d2c0 user: drh tags: query-planner-fix | |
| 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: ec5d84ba user: drh tags: query-planner-fix | |
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2014-08-06
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| 18:50 | A couple more harmless compiler warnings eliminated. check-in: bcf6d775 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: a2a60307 user: drh tags: trunk | |
| 14:36 | Fix harmless compiler warnings. In the command-line shell, report if the ".system" command returns a non-zero result. check-in: 1202e977 user: drh tags: trunk | |
| 12:00 | Merge the second InterlockedCompareExchange() fix from trunk. check-in: 69018967 user: drh tags: sessions | |
| 11:58 | Fix an obsolete comment in the func.c source file. No changes to code. check-in: 5c6bb57d 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: ab1a751e user: drh tags: trunk | |
| 11:49 | Fix an obsolete comment in the func.c source file. No changes to code. check-in: 7a145c94 user: drh tags: sessions | |
| 03:16 | Merge in the fix for the InterlockedCompareExchange() build issue. check-in: 091aa5f1 user: drh tags: sessions | |
| 03:06 | In the Win32 VFS, work around InterlockedCompareExchange() being a macro on some platforms (e.g. x64). check-in: 7be244ce user: mistachkin tags: trunk | |
| 02:03 | Merge all recent changes from trunk. check-in: a353a851 user: drh tags: threads | |
| 01:51 | Merge 3.8.6 beta changes in from trunk. check-in: b2e01080 user: drh tags: apple-osx | |
| 01:25 | Merge the latest 3.8.6 beta changes from trunk. check-in: 68a6d5e2 user: drh tags: sessions | |
| 01:08 | Fix typos in the opcode documentation. Comment changes only. No changes to code. check-in: 717245d4 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: 0ad1ed8e 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: 29ba8128 user: drh tags: trunk | |
| 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: 95286821 user: drh tags: trunk | |
| 11:04 | Rename the internal Schema.flags field to Schema.schemaFlags. check-in: 5ae80b3c user: drh tags: trunk | |
| 00:53 | Improved VdbeCoverage() macros. A few minor simplifications to generated VDBE code. Closed-Leaf check-in: 01f60027 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: ee5f6eae user: drh tags: IN-operator-improvements | |
| 18:50 | Further enhancements to IN-operator processing. check-in: 7fdf26da user: drh tags: IN-operator-improvements | |
| 16:39 | Refinements to the enhanced IN-operator logic. check-in: 92ba2821 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: 2f724cba 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: 436e8842 user: drh tags: IN-operator-improvements | |
| 20:44 | Remove (newly) incorrect preprocessor check to fix build on WinRT. check-in: ba782654 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: 9bc1c730 user: drh tags: trunk | |
| 21:00 | Improved detection and handling of NULL values on the RHS of a IN operator. check-in: 468e7300 user: drh tags: trunk | |
| 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: c11e55fa 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: 7c6fbcfe 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: e13175d3 user: drh tags: IN-operator-improvements | |
| 14:46 | Begin making changes to the IN operator in an attempt to make it run faster and to make the code easier to understand. check-in: ee0fd6aa user: drh tags: IN-operator-improvements | |
| 01:40 | Enhance the PRAGMA integrity_check command to detect UNIQUE and NOT NULL constraint violations. check-in: 9abcf269 user: drh tags: trunk | |
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2014-07-31
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| 22:59 | Refactoring: Change "pIndex->onError!=OE_None" to use a macro: "IsUniqueIndex(pIndex)". Easier to understand that way. check-in: e75b26ee user: drh tags: trunk | |
| 20:16 | Omit a pointless OP_Null when processing a value-list RHS of an IN operator where the LHS is a rowid. check-in: 1361450a user: drh tags: trunk | |
| 18:54 | Optimizations to the OS sub-type checking in the Win32 VFS. check-in: 1e5489fa user: mistachkin tags: trunk | |
| 18:14 | Add a missing call to "test_sqlite3_log" to multiplex.test. check-in: 0708f9df user: dan tags: trunk | |
| 17:35 | Fix a leaked database handle in pager2.test. check-in: 47457b04 user: dan tags: trunk | |
| 15:44 | Deactivate the DISTINCT in a SELECT on the right-hand side of an IN operator, since it should not make any difference in the output but dues consume extra memory and CPU time. check-in: f4cb5365 user: drh tags: trunk | |
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2014-07-30
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| 23:11 | Re-integrate the recent changes from the 'winMutex' branch back into the Win32 mutex subsystem. check-in: 5360ecb0 user: mistachkin tags: trunk | |
| 21:10 | Add three new static mutexes for use by the application. This is a partial import of changes from the threads branch. check-in: 3aad0196 user: drh tags: trunk | |
| 18:47 | Add a new sqlite3FaultSim() call to vdbePmaReaderSeek() to facilitate tests of error handling in the sorter. check-in: 655d8cfc user: drh tags: threads | |
| 17:21 | Mark some invariants in the vdbesort.c logic when SQLITE_MAX_WORKER_THREADS==0. check-in: 721cd965 user: drh tags: threads | |
| 15:43 | Add the "eForce" parameter to the sqlite3_multiplex_shutdown() entry point in test_multiplex.c. Shutdown is forced if true. Shutdown is not done if there are pending database connections and eForce is false, but an error log entry is made instead. check-in: c7303d01 user: drh tags: trunk | |
| 14:57 | Merge in the CREATE UNIQUE INDEX fix of ticket [9a6daf340df99ba93c53bcf]. check-in: fa791232 user: drh tags: apple-osx | |
| 14:44 | Merge recent trunk changes, and especially the fix for the CREATE UNIQUE INDEX problem of ticket [9a6daf340df99ba9]. check-in: 5b50a838 user: drh tags: threads | |
| 14:29 | Merge the fix for the CREATE UNIQUE INDEX problem into the sessions branch. check-in: 43401ee6 user: drh tags: sessions | |
| 13:56 | Ensure that the correct number of columns in a UNIQUE index are checked for uniqueness, regardless of whether or not the original table has a ROWID or if the columns are NOT NULL, etc. Ticket [9a6daf340df99ba93c]. check-in: 6b785e92 user: drh tags: trunk | |
| 11:49 | Merge all recent trunk changes, and especially the R-Tree IN operator fix of ticket [d2889096e7bdeac]. check-in: 654c6c65 user: drh tags: apple-osx | |
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2014-07-29
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| 21:44 | Disable an assert that is sometimes generated spuriously. check-in: bd9ee0ea user: mistachkin tags: threads | |
| 19:54 | Enhancements and updates to the Win32 mutex subsystem. check-in: ca9868cd user: mistachkin tags: trunk | |
| 19:00 | Update return value checking to conform to the beginthreadex() specs. check-in: 3144a16f user: mistachkin tags: threads | |
| 18:53 | Add a couple more assert statements. check-in: 4e816db2 user: mistachkin tags: threads | |
| 18:46 | Fix unreachable branches in the threads.c module. check-in: 3175e366 user: drh tags: threads | |
| 18:03 | Merge updates from trunk. Closed-Leaf check-in: 08c9a4ea user: mistachkin tags: winMutex | |
| 17:22 | Fix a harmless compiler warning. check-in: 216d21d0 user: drh tags: threads | |
| 16:37 | Make the Win32 thread handles are available after the threads exit. check-in: 565c5af7 user: mistachkin tags: threads | |
| 15:18 | Fix the threads build on Windows when SQLITE_MAX_WORKER_THREADS is greater than 0. check-in: f37db3a0 user: drh tags: threads | |
| 14:16 | Merge the R-Tree fix and the new SQLITE_TESTCTRL_ISINIT test control from trunk. check-in: b2f7eb3c user: drh tags: threads | |
| 14:09 | Add the SQLITE_TESTCTRL_ISINIT file control. check-in: 8b651d4d user: drh tags: trunk | |
| 12:40 | Merge recent trunk changes, and especially the fix for the R-Tree problem described in ticket [d2889096e7bdeac6]. check-in: 8f1beead user: drh tags: sessions | |
| 11:54 | Have calls to the xFilter() method of rtree virtual tables ensure that cursor is initialized before proceeding. Fix for [d2889096e7bdeac]. check-in: 8cc41b0b user: dan tags: trunk | |
| 05:49 | Enhancements and updates to the Win32 mutex subsystem. check-in: 18984c32 user: mistachkin tags: winMutex | |
| 00:42 | Add some asserts to the Win32 mutex subsystem. check-in: e8f2dc5f user: mistachkin tags: threads | |
| 00:23 | Fix the build on windows. check-in: 2773a5f9 user: drh tags: threads | |
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2014-07-28
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| 20:16 | Remove an unnecessary parameter from vdbeMergeEngineStep(). Rename a couple other routines to be more descriptive of what they do. check-in: f2407a40 user: drh tags: threads | |
| 19:58 | Rename vdbeIncrMergerInit() to vdbeMergeEngineInit() - a much more accurate name. check-in: 5b084a2d user: drh tags: threads | |
| 18:57 | In vdbesort.c, rename vdbeSorterDoCompare() to vdbeMergeEngineCompare() and move it closer to the one place where it is called. Other minor comment changes. check-in: 09d50d9f user: drh tags: threads | |
| 17:18 | In vdbesort.c, rename all pointers to sqlite3_file objects "pFd" and use the name "pFile" only for pointers to SortFile objects. Other comment enhancements. check-in: 518290a7 user: drh tags: threads | |
| 15:01 | Merge recent trunk changes into the threads branch. check-in: 163c247b user: drh tags: threads | |
| 14:54 | Improvements to comments in the multi-threaded sorter. Also include a function name change for clarity. And add a test to help show that the MergeEngine object is only used by a single thread. check-in: 9af50a87 user: drh tags: threads | |
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2014-07-26
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| 20:12 | Remove an unreachable branch from the sqlite3_value_numeric_type() interface. check-in: 5350229b user: drh tags: trunk | |
| 16:47 | Avoid unnecessary no-op calls to applyNumericAffinity() for a small performance improvement. check-in: 413d7287 user: drh tags: trunk | |
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2014-07-25
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| 21:35 | Try to fix harmless compiler warnings reported by Fortify. check-in: e0fa6fdc user: drh tags: trunk | |
| 18:37 | Improved comments on VDBE opcodes, for better documentation. No code or logic changes. check-in: 2d32e487 user: drh tags: trunk | |
| 18:01 | Add constraints (enforced only when SQLITE_DEBUG is enabled) on the use of OP_Next and OP_Prev. check-in: 2230c74f user: drh tags: trunk | |
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2014-07-24
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| 23:23 | Improve the performance of the ANALYZE command by taking advantage of UNIQUE constraints on indices. check-in: 114dcf33 user: drh tags: trunk | |
| 22:51 | Correct help text and make consistent use of snprintf. check-in: 9c424a5c user: mistachkin tags: asciiMode | |
| 22:41 | Fix a bug in the whereRangeSkipScanEst() procedure (added by check-in [d09ca6d5efad3e4cfa]) where it fails to consider the possibility of a ROWID column when computing the affinity of a table column. check-in: 6aea2258 user: drh tags: trunk | |
| 22:33 | Update a shell test case. check-in: b84008cb user: mistachkin tags: asciiMode | |
| 22:20 | Fix typo in comment and update help text. check-in: 289092bb user: mistachkin tags: asciiMode | |
| 22:13 | Merge updates from trunk. check-in: 8dc0cdf6 user: mistachkin tags: asciiMode | |
| 16:54 | Merge all recent trunk changes into the threads branch. check-in: 77068589 user: drh tags: threads | |
| 16:43 | Merge recent trunk changes into the apple-osx branch. check-in: 3810dc62 user: drh tags: apple-osx | |
| 16:23 | Merge recent trunk changes into the sessions branch. check-in: a9db017e user: drh tags: sessions | |
| 12:39 | Add the readfile(FILENAME) and writefile(FILENAME,CONTENT) SQL functions to the command-line shell. check-in: fb1048cb user: drh tags: trunk | |