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181 check-ins for the month beginning 2014-08-01
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2014-08-30
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| 15:49 | In the command-line shell, added options --lookaside, --pagecache, and --scratch used to configure auxiliary memories. (check-in: f61db04be4 user: drh tags: trunk) | |
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2014-08-29
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| 19:06 | Disable worker threads when SQLITE_THREADSAFE=0. Set the default compile-time maximum number of worker threads to 8 and honor the SQLITE_DEFAULT_WORKER_THREADS compile-time constant (which defaults to 0). (Closed-Leaf check-in: 33fa041049 user: drh tags: threads) | |
| 18:06 | Fix the speedtest1.c test program to set the worker thread count using the threads pragma. (check-in: 2ab4b5adc6 user: drh tags: threads) | |
| 16:20 | Add SQLITE_LIMIT_WORKER_THREADS for controlling the maximum number of worker threads. (check-in: 1b598c68f3 user: drh tags: threads) | |
| 14:40 | Merge recent performance enhancements from trunk onto the threads branch. (check-in: 35c44a3c73 user: drh tags: threads) | |
| 14:20 | Not a fault after all, rather a testing mistake. Move this change back to trunk. Was: Avoid an unnecessary OP_Move operation for expression subqueries. (check-in: 2a74129a21 user: drh tags: trunk) | |
| 12:29 | Contains a fault. Was: Avoid an unnecessary OP_Move operation for expression subqueries. (Closed-Leaf check-in: 462f42af52 user: drh tags: mistake) | |
| 11:24 | Add the sqlite3VdbeChangeDest() routine that can be used to eliminate OP_Move opcodes. (Closed-Leaf check-in: 8c57bcc327 user: drh tags: experimental) | |
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2014-08-28
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| 19:38 | Improved WHERETRACE messages for the estimated output row reductions from range scans. (check-in: fdd478bb11 user: drh tags: trunk) | |
| 17:30 | Fix a problem causing an inaccurate stat4-based estimate for the number of rows visited by a range scan. (check-in: a9daf3ac44 user: drh tags: trunk) | |
| 17:20 | Add a testcase() macro to help verfity the row estimation logic. (Closed-Leaf check-in: 6ba609522e user: drh tags: stat4-experimental) | |
| 16:01 | Fix a problem causing an inaccurate stat4-based estimate for the number of rows visited by a range scan. (check-in: 052d89b554 user: dan tags: stat4-experimental) | |
| 13:42 | Fix a formatting error ("%d" needed in place of "%g") on a WHERETRACE macro inside of the query planner. This fix applies to debugging logic only. (check-in: c931ca2b77 user: drh tags: trunk) | |
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2014-08-27
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| 23:18 | Refactor the sqlite3PcacheFetch() routine into three separate routines, which are significantly faster overall and about 100 bytes smaller in size as well. (check-in: bdb6e4978d user: drh tags: trunk) | |
| 17:53 | Add a VDBE synopsis comment for clarification. (check-in: 029a6dc744 user: mistachkin tags: trunk) | |
| 17:48 | Add a missing ticket number to a comment in index7.test. (check-in: d8b1c43361 user: dan tags: trunk) | |
| 17:37 | When determining whether or not a partial index is usable, do not assume that the cursor number assigned to each table in the query is the same as its index in the FROM clause. Fix for ticket [98d973b8f5]. (check-in: fcebca166f user: dan tags: trunk) | |
| 14:14 | In the sqlite3_context object, keep a pointer to the result value rather than storing the result value in the sqlite3_context object and using memcpy() to move the value back into its register after the function returns. This runs faster and saves over 500 bytes of code space. (check-in: 6c1ee3e388 user: drh tags: trunk) | |
| 03:28 | Factor out the exception paths from sqlite3ValueToText() into a separate function so that the main routine is much faster for the common case of no required type or encoding conversions. (check-in: 1624916c6e user: drh tags: trunk) | |
| 00:50 | Performance enhancement in sqlite3VdbeMemNulTerminate(). (check-in: f94cacc393 user: drh tags: trunk) | |
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2014-08-26
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| 15:06 | Change the page cache so that a new sqlite3_pcache object is allocated as soon as the page cache is opened, not delayed until the first fetch request. This give a noticable performance boost. The interface between pager and the page cache has changed slightly, which might break ZIPVFS. (check-in: f1f94a971e user: drh tags: trunk) | |
| 02:15 | Merge recent performance enhancements and the CAST operator enhancements into the sessions branch. (check-in: 08ae974ac8 user: drh tags: sessions) | |
| 02:02 | Merge recent performance enhancements and the CAST operator enhancements into the apple-osx branch. (check-in: 5c27311105 user: drh tags: apple-osx) | |
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2014-08-25
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| 23:44 | Remove the SQLITE_CONFIG_WORKER_THREADS configuration parameter. The number of worker threads in the sorter is now determined only by the PRAGMA threads=N setting. (check-in: e3305d4b4e user: drh tags: threads) | |
| 22:43 | Merge the CAST operator enhancements from trunk. (check-in: 6c8f86e4e0 user: drh tags: threads) | |
| 22:37 | Add an assert() and five testcase() macros to the OP_Cast opcode implementation to help verify that it is fully tested. (check-in: af364cce9d user: drh tags: trunk) | |
| 21:11 | Minor changes to the CAST logic to make it more testable. (check-in: 1ad70ec550 user: drh tags: trunk) | |
| 20:21 | Test cases added for using unary "+" and CAST operators on the RHS of range constraints and verifying that STAT3/4 can use those constraints. (check-in: 42505e5a81 user: drh tags: trunk) | |
| 20:11 | Allow CAST expressions and unary "+" operators to be used in the DEFAULT argument of an ALTER TABLE ADD COLUMN and to be understand on the RHS of range constraints interpreted by STAT3/4. This involves a rewrite of the implementation of the CAST operator. (check-in: 91d8a8d0b7 user: drh tags: trunk) | |
| 19:58 | Add documentation for tokenizer api to fts5.h. Also add a script to extract extension API docs and format them as html. (check-in: e240d467e6 user: dan tags: fts5) | |
| 18:29 | In cases where stat4 data is available but cannot be used because the rhs of a range constraint is too complex a expression, fall back to using the default estimates for number of rows scanned. (check-in: e06dc6f0c3 user: dan tags: trunk) | |
| 15:13 | Query or change the maximum number of worker threads allowed on each database connection separately using the "PRAGMA threads" command. (check-in: 29c5e8a7c9 user: drh tags: threads) | |
| 13:27 | Merge the recent performance enhancements implemented on trunk into the threads branch. (check-in: dfdc900f5d user: drh tags: threads) | |
| 11:33 | Remove the pager_lookup() function since it is redundant with sqlite3PagerLookup(). (check-in: 54164ce47c user: drh tags: trunk) | |
| 11:20 | Change the name of the VdbeMemRelease() macro to VdbeMemReleaseExtern() to more accurately reflect what it does. Performance enhancement to the sqlite3VdbeMemRelease() function. (check-in: 3ca5846da7 user: drh tags: trunk) | |
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2014-08-24
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| 02:53 | The sqlite3VdbeChangeEncoding() routine goes about 3x faster if the sqlite3VdbeMemTranslate() subroutine is not inlined. (check-in: 0c7e1b875a user: drh tags: trunk) | |
| 01:32 | Patch the sqlite3PagerWrite() method in the Pager to run a bit faster. (check-in: c63311e2f3 user: drh tags: trunk) | |
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2014-08-23
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| 23:15 | Faster implementation of pcache1Fetch() (check-in: 0371cc3bb0 user: drh tags: trunk) | |
| 20:25 | Faster implementation of the sqlite3ApiExit() routine. (check-in: bd41d394d4 user: drh tags: trunk) | |
| 19:42 | Another memory allocator performance optimization. (check-in: 6da6f46d0c user: drh tags: trunk) | |
| 19:08 | Fix a variable-declaration after code problem in btree.c. Harmless in GCC and CLANG but unacceptable for MSVC. (check-in: 45abd5c0ba user: drh tags: trunk) | |
| 19:04 | Changes to sqlite3ScratchMalloc() that make the entire memory allocation interface a little faster and about 100 bytes smaller. (check-in: f83daa16f6 user: drh tags: trunk) | |
| 18:17 | Make the implementation of the sqlite3_aggregate_context() interface faster for second an subsequent invocations. This helps all aggregate functions to perform better. (check-in: 802148f311 user: drh tags: trunk) | |
| 17:41 | Improved performance in the type handling of arithmetic operators in the VDBE. (check-in: 0c0a603950 user: drh tags: trunk) | |
| 17:21 | Performance optimization in the applyAffinity() logic inside the VDBE. (check-in: 25f2246be4 user: drh tags: trunk) | |
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2014-08-22
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| 23:33 | Another performance tweak: Split the sqlite3BtreeCursorHasMoved() routine into two with the second routine named sqlite3BtreeCursorRestore(). The first now only reports whether or not the cursor has moved and the second tries to restore the cursor. This allows the sqlite3VdbeCursorMoveto() routine to be refactored to avoid stack pointer movements, for a noticable performance gain. (check-in: ce123b5c59 user: drh tags: trunk) | |
| 22:26 | Factor the saveAllCursors() routine of btree.c into two separate routines, for a noticable performance improvement. (check-in: 3eb0843903 user: drh tags: trunk) | |
| 21:58 | Performance enhancements in the b-tree mutex logic. (check-in: 8914530644 user: drh tags: trunk) | |
| 20:35 | Combine the pcacheAddToDirtyList() and pcacheRemoveFromDirtyList() routines into a single pcacheManageDirtyList() routine. The resulting binary code is slightly faster and a few bytes smaller. (check-in: 6bcf1af6a4 user: drh tags: trunk) | |
| 19:12 | Revise #ifdef ordering to prefer the ANSI version of GetVersionEx, when available. (Closed-Leaf check-in: 9fe0f0754c user: mistachkin tags: winrt) | |
| 18:48 | Performance enhancement in sqlite3PutVarint(). (check-in: a929be5519 user: drh tags: trunk) | |
| 18:00 | Split the sqlite3Error() routine into sqlite3Error() and sqlite3ErrorWithMsg(), for a slight size reduction and performance increase. (check-in: cf561d1f0b user: drh tags: trunk) | |
| 15:40 | Performance improvement in the printf() logic by avoiding unnecessary stack pointer movement. (check-in: f7f2160db0 user: drh tags: trunk) | |
| 15:19 | Improve the performance and reduce the size of the sqlite3VdbeSerialGet() routine by avoiding the use of stack. (check-in: ebc10e46c1 user: drh tags: trunk) | |
| 14:56 | Handle the 4-byte integer case in the stackless routine. (Closed-Leaf check-in: 3f55484e81 user: drh tags: experimental) | |
| 14:34 | Get the sqlite3VdbeSerialGet() routine to run faster by avoiding the use of local variables. (check-in: 8267d82174 user: drh tags: experimental) | |
| 13:22 | Change a while-loop into a do-loop in sqlite3VdbeSerialPut() for a small size reduction and performance improvement. (check-in: 750bb0a096 user: drh tags: trunk) | |
| 11:11 | Enhance the spellfix extension with the ability to specify a rowid when inserting new rows. (check-in: 369c480cda user: drh tags: trunk) | |
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2014-08-21
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| 20:26 | Simplify the interface to the symbol table, saving 600 bytes of code space. (check-in: 14b0f561fe user: drh tags: trunk) | |
| 19:11 | For sqlite3_win32_is_nt(), assume WinRT is NT-based. (check-in: 2f59e71fbf user: mistachkin tags: winrt) | |
| 16:09 | Merge all recent trunk changes, especially the fix for ticket [369d57fb8e5ccdff06f1], but also the skip-scan improvement and performance improvements in the b-tree code. (check-in: 0b9e2c3269 user: drh tags: sessions) | |
| 14:10 | Fix a faulty assert() statement. Add comments to clarify the behavior of the sqlite3OpenTableAndIndices() routine in insert.c. Add test cases to verify that the assert() statement is not firing inappropriately. Ticket [369d57fb8e5ccdff06f1]. (check-in: 7029b3404d user: drh tags: trunk) | |
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2014-08-20
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| 23:42 | Increase the version number to 3.8.7 (check-in: 91594aae07 user: drh tags: trunk) | |
| 23:38 | Enhancements to skip-scan such that it is operable when a middle column of an index is skipped while the left-most column is constrained in the WHERE clause. (check-in: bc985caa78 user: drh tags: trunk) | |
| 18:43 | A small performance improvement in freeSpace() by special-casing the relatively common case of an empty freelist. (check-in: 49f44d355f user: drh tags: trunk) | |
| 17:56 | Reimplement the freeSpace() routine in btree.c so that it runs faster. (check-in: fe4fd014b4 user: drh tags: trunk) | |
| 14:37 | Refactor local variable names in the freeSpace() routine of btree.c for improved understandability. (check-in: 7e63089a19 user: drh tags: trunk) | |
| 13:35 | Size reduction and performance improvements in btree.c and the allocateSpace() routine. Also fix an assert() in freeSpace(). (check-in: 121308fa86 user: drh tags: trunk) | |
| 13:25 | Add SQLITE_API macros in front of interface routines in the test_intarray.c extension. (check-in: eea0661798 user: drh tags: trunk) | |
| 13:17 | Change an assert() added by the previous commit into a testcase(). Fix a separate assert() in btree.c:freeSpace(). (Closed-Leaf check-in: fe51d3aa0c user: drh tags: btree-speedup) | |
| 11:56 | Further size reduction and performance improvement in btree.c:allocateSpace(). (check-in: 1cb1cd6493 user: drh tags: btree-speedup) | |
| 10:42 | Fix a typo in the showdb usage message. (check-in: 6c66beae97 user: dan tags: trunk) | |
| 00:54 | Minor performance improvement and size reduction for the btree-page space allocator. (check-in: 73637d12e3 user: drh tags: trunk) | |
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2014-08-19
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| 23:04 | Modify the memsubsys1-3.1.4 test so that it does not fail arbitrarily due to variations in the behavior of system malloc(). (check-in: d280157da0 user: drh tags: trunk) | |
| 20:41 | A better fix for the sqlite3_trace() problem. Ticket [11d5aa455e0d98f3c1e6a] (check-in: 44d5bd4cc3 user: drh tags: trunk) | |
| 20:27 | Make sure the sqlite3_trace() callback is invoked, even if the prepared statement was marked "expired" before it ever entered sqlite3_step(). Ticket [11d5aa455e0d98f3c1e6a08]. (check-in: 0d4d3df4bc user: drh tags: trunk) | |
| 19:28 | Improvements to output formatting with the ".trace" command in the command-line shell. (check-in: d09d63c077 user: drh tags: trunk) | |
| 09:15 | Minor changes to do with the Tcl tea extension package autoconf system. (check-in: f10a611126 user: dan tags: trunk) | |
| 00:33 | Disable the hook-7.5.2 tests when using sessions, since that are not correct in that case. (check-in: 6d5b9332e8 user: drh tags: sessions) | |
| 00:26 | Improved response to error conditions in the ".session" shell command and in the "changeset" command-line program. (check-in: b69f7dd1f3 user: drh tags: sessions) | |
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2014-08-18
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| 20:23 | Fix the autoconf and MSVC makefiles so that they construct the changeset command-line utility upon request. Delete that utility program when "make clean" is run. (check-in: 4dc15fe066 user: drh tags: sessions) | |
| 20:14 | Fix a harmless compiler warning in the sessionAppendDelete() function. (check-in: 1324d08d0c user: drh tags: sessions) | |
| 20:08 | Add the "changeset" command-line tool for analyzing and manipulating changesets in files on disk. Add the ".session" command to the command-line tool. (check-in: 31addb627f user: drh tags: sessions) | |
| 20:01 | A reasonably complete implementation of the "changeset" command-line tool and the ".sessions" command in the command-line shell. (Closed-Leaf check-in: 7b12f1f9c0 user: drh tags: sessions_from_cli) | |
| 19:30 | Add an "automerge=0" mode that disables auto-merging and falls back to fts4-style crisis merges. (check-in: 2397404e15 user: dan tags: fts5) | |
| 17:56 | Add the "changeset" command-line utility for getting an ASCII dump of change sets. (check-in: 55bb3544a6 user: drh tags: sessions_from_cli) | |
| 16:03 | Add miscellaneous test cases to improve coverage of sessions module. (check-in: 0fac6cfffe user: dan tags: sessions) | |
| 15:08 | Begin adding commands to the command-line interface for interacting with the sessions extension. This is the first check-in of a work-in-progress. (check-in: c2fcf0b9f4 user: drh tags: sessions_from_cli) | |
| 13:48 | Merge the latest trunk changes, and in particular the refactoring of the object names in the command-line shell. (check-in: 419d286a2f user: drh tags: sessions) | |
| 13:45 | Refactor the names of state objects in the command-line shell implementation.. (check-in: 11a70e1ae7 user: drh tags: trunk) | |
| 08:42 | Add tests for sessions module. (check-in: 82fdb1975f user: dan tags: sessions) | |
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2014-08-16
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| 19:01 | Fix some missing and out-of-date comments in the sessions module. (check-in: 05c1d9149b user: dan tags: sessions) | |
| 16:47 | Fixes for the sqlite3changeset_concat() API regarding patchsets. (check-in: dccb348595 user: dan tags: sessions) | |
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2014-08-15
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| 20:15 | Begin adding the sqlite3session_patchset() API to the sessions extension. This is an interim commit. (check-in: 60a4565a8c user: dan tags: sessions) | |
| 16:13 | Fix compiler warnings on WinCE. (check-in: 28a379fcd4 user: drh tags: trunk) | |
| 16:10 | Merge the 3.8.6 changes into the apple-osx branch. (check-in: b91fcb3b1b user: drh tags: apple-osx) | |
| 15:46 | Merge the 3.8.6 release into the threads branch. (check-in: 05807c4122 user: drh tags: threads) | |
| 15:10 | Update the sessions branch for version 3.8.6. (check-in: 2acbeac1fd user: drh tags: sessions) | |
| 11:46 | Version 3.8.6 (check-in: 9491ba7d73 user: drh tags: trunk, release, version-3.8.6) | |
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2014-08-14
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| 19:53 | Fix an assert that can fail if the database file is corrupted. (check-in: 3f45b8192d user: dan tags: trunk) | |
| 18:31 | Fix compiler warnings on WinCE. (Closed-Leaf check-in: cc910b8e0c user: mistachkin tags: winCeWarn) | |
| 14:02 | Merge the pre-3.8.6 changes into the threads branch. (check-in: a608fd1d52 user: drh tags: threads) | |
| 13:39 | Merge the pre-3.8.6 changes from trunk into the apple-osx branch. (check-in: 08058df3af user: drh tags: apple-osx) | |
| 13:06 | Fix typos in comments used to help generate documentation. No changes to code. (check-in: 13a2d90a28 user: drh tags: trunk) | |
| 02:59 | Add icon to the Windows shell executable. This is a resource change only, no changes to code. (check-in: f5cce9db10 user: mistachkin tags: trunk) | |
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2014-08-13
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| 14:43 | Merge the trunk changes for 3.8.6 beta3 into the sessions branch. (check-in: d49455d9a9 user: drh tags: sessions) | |
| 11:39 | Minor change to unixDelete for VxWorks with a DOS filesystem. (check-in: f01d42cc8b user: drh tags: trunk) | |
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2014-08-12
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| 20:13 | Fix where9.test so that it works with the "no_optimization" permutation. (check-in: d46adf9d8f user: dan tags: trunk) | |
| 16:13 | Fix compilation issue in the Win32 VFS when manually defining SQLITE_WIN32_NO_ANSI. (check-in: 6715991296 user: mistachkin tags: trunk) | |
| 16:07 | Cache the value of the "totals" record in memory during transactions. (check-in: 05dfdad445 user: dan tags: fts5) | |
| 14:29 | Improve the comments associated with SQLITE_TEST_REALLOC_STRESS and add an extra assert() to prove an assumption. (check-in: 35c4546163 user: drh tags: trunk) | |
| 14:06 | Run a test with TEST_REALLOC_STRESS and OMIT_LOOKASIDE defined as part of releasetest.tcl on Linux/x86-64. (check-in: a1baf3a7b1 user: dan tags: trunk) | |
| 13:38 | If SQLITE_TEST_REALLOC_STRESS is defined, extend the op-code array used by virtual-machine programs by one element at a time, instead of doubling its size with each realloc(). (check-in: 4c29182722 user: dan tags: trunk) | |
| 13:32 | Remove support for Win9x. (Leaf check-in: 169fc47e16 user: drh tags: drop-win9x-support) | |
| 12:19 | Fix typos in the VxWorks code of os_unix.c. (check-in: 19682e8fdc user: drh tags: trunk) | |
| 09:36 | Add a test to ensure that the problem fixed by [a179e41e40] does not recur. (check-in: 31356f2cae user: dan tags: trunk) | |
| 08:36 | Automatically resize the hash table used by fts5. (check-in: f1cb48f412 user: dan tags: fts5) | |
| 01:23 | Fix an assert() statement in the SELECT code generator that was incorrect following an OOM error. (check-in: a179e41e40 user: drh tags: trunk) | |
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2014-08-11
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| 20:26 | Simplify the way position lists are copied when merging data. (check-in: 9f8d678a0e user: dan tags: fts5) | |
| 19:44 | Replace the hash table borrowed from fts3. (check-in: 617e2fac1c user: dan tags: fts5) | |
| 17:51 | Modify GetVersionEx Win32 VFS fix for use with the test suite. (check-in: fd2221768b user: mistachkin tags: trunk) | |
| 17:41 | Further clarification and typo fixes for the previous comment change. (check-in: 87ef9e2f29 user: drh tags: trunk) | |
| 17:40 | Clarify the comment explaining the meaning of the SQLITE_WIN32_GETVERSIONEX macro in the Windows VFS. (check-in: 69714287db user: drh tags: trunk) | |
| 17:38 | Fix for #ifdef issue with GetVersionEx in the Win32 VFS. (check-in: 1a0d466dd4 user: mistachkin tags: trunk) | |
| 17:37 | Add a few more requirements tests. (check-in: b5652439d5 user: drh tags: trunk) | |
| 15:54 | Updates to evidence marks and requirements. No changes to code. (check-in: 62d38308b5 user: drh tags: trunk) | |
| 14:21 | Fix harmless compiler warnings. (check-in: 52b03f045e user: drh tags: trunk) | |
| 13:53 | Changes that will perhaps enable SQLite to work better on VxWorks. (check-in: de27c742c0 user: drh tags: trunk) | |
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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) | |
|
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) | |
| 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: ee0fd6aaf9 user: drh tags: IN-operator-improvements) | |
| 11:16 | Add "doclist index" records to the database. These are to make navigating within very large doclists faster. They are not yet used by queries. (check-in: 89377421ff user: dan tags: fts5) | |
| 01:40 | Enhance the PRAGMA integrity_check command to detect UNIQUE and NOT NULL constraint violations. (check-in: 9abcf2698c user: drh tags: trunk) | |