SQLite
Timeline
Not logged in

200 most recent timeline items related to "trunk"

2014-10-01
01:52
[2695772c98] Leaf: Merge the latest enhancements from trunk. (user: drh, tags: sessions)
01:46
[2078454ac9] Leaf: Merge the latest enhancements from trunk. (user: drh, tags: apple-osx)
2014-09-30
21:24
[0efc6859d1] Leaf: Draw the TreeView debugging graphs using unicode box-drawing characters. (user: drh, tags: box-character-graph)
19:04
[5ce05757aa] Leaf: Improvements to the new syntax-tree output routines: Omit the "END SELECT" mark and instead terminate the graph at the last item. Increase the maximum tree depth to 100. (user: drh, tags: trunk)
17:31
[b6b289182f] Enable the query planner to deal with WHERE clauses that have OR terms nested within AND terms that are nested within OR terms. Also remove an unused function declaration. (user: drh, tags: trunk)
17:03
[670993eb81] Further enhancements to the "wheretrace" debugging output. (user: drh, tags: trunk)
14:14
[2e375eae47] Enhanced debug output for OR-logic in the query loop optimizer. (user: drh, tags: trunk)
13:46
[92e0b4bd4d] Show tree diagrams of data structures in the debugging output when the 0x100 bit is set on sqlite3WhereTrace or sqlite3SelectTrace. (user: drh, tags: trunk)
12:33
[4ff51325d6] Remove the SQLITE_ENABLE_TREE_EXPLAIN compile-time option. Add alternative debugging display routines: sqlite3TreeViewExpr(), sqlite3TreeViewExprList(), and sqlite3TreeViewSelect(). (user: drh, tags: trunk)
2014-09-29
18:47
[5e5d6e8680] Leaf: Add the OPFLAG_MULTICOLUMN flag to the OP_Column opcode. Rearrange OP_Column instructions to take advantage of the new flag for a small performance increase (user: drh, tags: faster-OP_Column)
15:42
[7fb1626866] Fix the header comment in sqlite3VdbeDeletePriorOpcode(). No changes to code. (user: drh, tags: trunk)
15:00
[414f0d6a64] Ensure that the OP_Prev opcode verifies that content has not been deleted out from under the cursor. Fix for ticket [209d31e3161b9e9ff]. (user: drh, tags: trunk)
2014-09-27
19:51
[497367cb57] Merge recent trunk changes (performance enhancements) into the sessions branch. (user: drh, tags: sessions)
05:00
[3edab9957c] Leaf: Reduce the amount of memcpy() required by defragmentPage(). (user: drh, tags: defrag-opt)
2014-09-26
18:30
[d026f0c944] Add an assert() to verify the last-row-id for the database just prior to calling a SQL function. (user: mistachkin, tags: trunk)
02:41
[83913515830a] Fix the "PRAGMA integrity_check" command so that it avoids formatting error message context messages until it actually needs to generate an error message. This avoids much formatting, and hence greatly improves the performance of "PRAGMA integrity_check" in the common case when there are no errors. It also makes the code a little smaller. (user: drh, tags: trunk)
01:10
[e93aecc090] If an SQL function makes a recursive call to do an INSERT into the same database, make sure that the last_insert_rowid() for that INSERT is recorded. (user: drh, tags: trunk)
2014-09-25
17:42
[baeb72a356] Minor code reformatting and comment change, to improve clarity. No logic changes. (user: drh, tags: trunk)
13:17
[3467049a17] Simplifications to the SQL function and aggregate calling procedures. (user: drh, tags: trunk)
12:31
[1330c72e17] Simplification to the random rowid picking logic that begins running when the maximum possible rowid has already been used. (user: drh, tags: trunk)
11:08
[6c8924cacc] Still more performance enhancements to the LIKE and GLOB operators. (user: drh, tags: trunk)
03:51
[5ab1023d6c] More performance optimization for the LIKE and GLOB operators. (user: drh, tags: trunk)
02:44
[ef30e0352b] Change that might allow SQLite to build and work using the EBCDIC character set. (user: drh, tags: trunk)
00:56
[b2c89ef49c] Size reduction and performance improvement in the LIKE and GLOB operators. (user: drh, tags: trunk)
2014-09-24
19:47
[99323552c0] Have each open database allocate its pTmpSpace when the first write cursor is opened, rather than on each insert or delete, for a small space savings and performance boost. (user: drh, tags: trunk)
18:31
[13c746f85d] Small performance and size optimization for btreeUnlockIfUnused(). (user: drh, tags: trunk)
13:20
[1ad2bc1ed4] Do not allow parameters in a DEFAULT clause of a CREATE TABLE statement. Ticket [78c0c8c3c9f7c1]. (user: drh, tags: trunk)
04:38
[c705cf856d] Closed-Leaf: Experiment using linear interpolation, instead of a strict binary search, when looking for integer-keyed rows on a single b-tree page. The experiment was not successful. The number of key comparisons is reduced by about 15%, but the added complexity of the search logic causes an overall reduction in performance. The patch is saved for historical reference only. (user: drh, tags: linear-interpolation)
02:05
[f21d217583] Have the clearCell() routine return the cell size to the caller, rather than have the caller make a separate call to cellSizePtr(). (user: drh, tags: trunk)
01:23
[5dd41cdbfe] Shorten all lines of source code in btree.c to at most 80 characters. No logical changes. (user: drh, tags: trunk)
00:59
[8e3375313e] Add the MemPage.noPayload boolean and use it to help cellSizePtr() and btreeParseCellPtr() run faster. (user: drh, tags: trunk)
2014-09-23
23:12
[f480582cca] Remove an unused C-preprocessor macro. No functional changes to the code. (user: drh, tags: trunk)
22:36
[4147f6671e] Avoid calling btreeParseCellPtr() from within fillInCell() since most of what btreeParseCellPtr() computes is ignored by fillInCell(). Instead, have fillInCell() compute the values it needs inline. Performance improvement. (user: drh, tags: trunk)
21:25
[bf59df66b3] Simplify the CellInfo structure for a size reduction and performance improvement. (user: drh, tags: trunk)
18:30
[d2962a5f38] Add the "multiplex_truncate" PRAGMA to the multiplexor extension, for querying and setting the truncate flag on a database connection. (user: drh, tags: trunk)
01:40
[ae9a42b268] Adjust skip-scan cost estimates slightly so that a full table scan is preferred over a skip-scan to a column with only two distinct values. (user: drh, tags: trunk)
2014-09-22
20:38
[7609744014c] Fix to payload size overflow detection in the cellSizePtr() change of the previous check-in. (user: drh, tags: trunk)
19:51
[bc8bbf3207] Size reduction and substantial performance increase for cellSizePtr(). (user: drh, tags: trunk)
14:30
[41de1643bf] Tune the query planner to be more aggressive about using automatic indexes on views and subqueries for which there is not opportunity to declare a persistent schema index. (user: drh, tags: trunk)
03:22
[10a6e51049] Disable shared memory operations using the unix-nolock VFS. (user: drh, tags: trunk)
2014-09-21
23:08
[3967ebe83e] Merge in all recent changes from trunk. (user: drh, tags: apple-osx)
22:49
[6406b77f2c] Merge all recent trunk changes into the sessions branch. (user: drh, tags: sessions)
22:31
[d5880abd63] Correctly handle an ORDER BY clause on an outer query when applying the compound-subquery flattening optimization. Ticket [d11a6e908f]. Also add the SQLITE_ENABLE_SELECTTRACE option for additional debugging and analysis information about select statement processing. (user: drh, tags: trunk)
20:31
[9683e001ed] Closed-Leaf: Add test cases for ticket [d11a6e908f]. (user: drh, tags: select-trace)
2014-09-20
18:18
[cbe0cf9ddf] Enable SELECT query planning tracing when compiled with SQLITE_ENABLE_SELECTTRACE and either SQLITE_DEBUG or SQLITE_TEST. (user: drh, tags: select-trace)
00:35
[59e2c9df02] Fix the usage of the _GNU_SOURCE and _BSD_SOURCE macros in the main internal header file, sqliteInt.h. Set HAVE_STRCHRNUL to 1 by default on Linux only. (user: drh, tags: trunk)
00:29
[0fac2c045f] Closed-Leaf: Only enable HAVE_STRCHRNUL by default on linux, as that is the only place it appears to work by default. (user: drh, tags: sqliteIntMacros)
00:02
[35db3e2f35] Revise macro usage in 'sqliteInt.h'. (user: mistachkin, tags: sqliteIntMacros)
2014-09-19
22:44
[544664cadf] Simplify two conditionals and add testcase() macros to the affinity transform logic in the comparison operators. (user: drh, tags: trunk)
22:30
[3b21cf2b28] Recognize the invariant that a Mem object cannot be MEM_Dyn and have a non-zero szMalloc at the same time. Enforce this with assert()s and exploit it in the sqlite3VdbeMemClearAndResize() routine for a performance increase. (user: drh, tags: trunk)
22:01
[e996ca32cb] Tighten the conditions under which applyNumericAffinity() be called and add assert() statements to prove that it is never called otherwise. (user: drh, tags: trunk)
20:13
[3f3ca76aea] Fix the affinity on inserts into the ANALYZE tables. Change the affinity characters to be upper case, to make the P5 parameter of comparison operators easier to read. (user: drh, tags: trunk)
19:43
[3ab20ba14f] Do not attempt to extend the temp file if VFS version 3 is not supported and hence memory mapped I/O is unavailable. (user: drh, tags: trunk)
19:00
[3db78d6100] Make the "nolock" VFS on unix a version-3 VFS so that the sorter can use memory-mapped I/O. (user: drh, tags: trunk)
16:56
[6199760d13] Remove a local variable from the OP_Column implementation, resulting in a modest size reduction and a performance increase. (user: drh, tags: trunk)
16:13
[24cd32d681] Small size reduction and performance increase for releaseMemArray(). (user: drh, tags: trunk)
16:02
[9b42c3da6b] Updates to comments. No code changes. (user: drh, tags: trunk)
15:28
[36b613ccf0] The OP_Column opcode runs faster and is smaller by manually in-lining the code that persists string values in the output register. (user: drh, tags: trunk)
04:42
[987a7a2119] Add the sqlite3VdbeMemClearAndResize() function. Fix a sorting-index prefilter problem. (user: drh, tags: trunk)
02:01
[72727b68cd] Closed-Leaf: Make sure that the sorting-index pre-filter recognizes that a rowid reference might be sortable. This fixes a performance regression. (user: drh, tags: Cplusplus-comment)
00:43
[5b9b898779] Add the sqlite3VdbeMemClearAndResize() interface to be used in place of sqlite3VdbeMemGrow(). A C++ style comment was left in this check-in by mistake, and so it has been moved into a branch to avoid problems in any future bisects on windows. (user: drh, tags: Cplusplus-comment)
2014-09-18
21:25
[9c09ac353d] Add the Mem.szMalloc element to the Mem object and use it to keep track of the size of the Mem.zMalloc allocation. (user: drh, tags: trunk)
18:55
[55879932116d] Correct typos in comments. No changes to code. (user: mistachkin, tags: trunk)
17:52
[4c8c89d7e6] Merge the Mem.r value into the MemValue union as Mem.u.r. Hence, a Mem can now store an integer or a real but not both at the same time. Strings are still stored in a separate element Mem.z, for now. (user: drh, tags: trunk)
16:28
[d7afdcbac2] Performance improvement for affinity transformations on comparison operators. (user: drh, tags: trunk)
14:36
[4ef4c9a7c8] Since numeric affinity is the most common case, check it first. Interchange the NONE and TEXT affinity codes for easier checking of no affinity. (user: drh, tags: trunk)
11:31
[67ea2979d5] Merge latest trunk changes with this branch. (user: dan, tags: experimental-bulk-update)
09:59
[3bd7c1b2fa] Modify an assert() within sqlite3PagerWalFramesize(), a function only ever used by zipvfs, to account for recent zipvfs changes. (user: dan, tags: trunk)
02:20
[5192f964b2] Fix harmless warnings on 32-bit MSVC builds. (user: drh, tags: trunk)
01:50
[ef1aa10b7f] Make sure of the strchrnul() library function on platforms where it is available. (user: drh, tags: trunk)
01:29
[1de558bcb1] Merge micro-optimizations into trunk after fixing the build on MSVC. Performance now shows 7.58% faster than the 3.8.6 release on x64 with gcc 4.8.1 and -Os. (user: drh, tags: trunk)
01:21
[163bfae858] Closed-Leaf: Fix compiler warnings and change the nullMem structure initializer into a format that MSVC can understand. (user: drh, tags: micro-optimizations)
2014-09-16
14:16
[0be3019ed7] Reorder the elements of the Mem object for a small size reduction and performance improvement. Moved into a branch because MSVC is unable to handle named structure initializer on nullMem. (user: drh, tags: micro-optimizations)
13:30
[8fb90da77c] Changes to sqlite3VdbeRecordUnpack() to make it slightly smaller and faster. (user: drh, tags: trunk)
03:24
[20ed2321b0] Performance improvement to the sqlite3MemCompare() routine by factoring out sqlite3BlobCompare(). (user: drh, tags: trunk)
2014-09-15
16:57
[5efafef51d] Merge latest trunk fixes into this branch. (user: dan, tags: experimental-bulk-update)
16:53
[4060efb646] Fix tool/showwal.c so that it handles WAL files that contain 64KiB pages. (user: dan, tags: trunk)
16:50
[dedaa6fb3d] Avoid attempting to call the xFetch() method of an sqlite3_io_methods object with a version number less than 3. (user: dan, tags: trunk)
15:34
[55b8011d5b] Merge latest trunk changes with this branch. (user: dan, tags: experimental-bulk-update)
14:59
[69a6456077] Remove the EXPENSIVE_ASSERTS in pcache.c having to do with the pSynced field of the Pcache object, as they are incorrect, as revealed by recent pcache enhancements. (user: drh, tags: trunk)
14:46
[0bdf1a086b] Do not flatten aggregate subqueries that contain min() or max() functions so that if the min()/max() are discarded by the outer query, they still function and cause non-aggregate expression to be evaluated on the minimal or maximal row. (user: drh, tags: trunk)
11:14
[4ff0eb96bc] Adjust comments to show that subquery flattening restriction (10) was removed from the code back in 2005. This is a comment change only. (user: drh, tags: trunk)
2014-09-12
20:30
[b332a84d51] Small performance improvement to the dirty list handling in the pager. (user: drh, tags: trunk)
17:41
[320556233e] Simplify the way the column cache is managed around OP_Move instructions. (user: drh, tags: trunk)
04:28
[2f69a1fa6a] Fix a problem with parser memory allocation on 32-bit systems. (user: drh, tags: trunk)
2014-09-11
23:34
[34292b084e] Fix an issue with sqlite3_bind_text64() with the SQLITE_UTF16 encoding parameter. Remove some unreachable code from the text64() and blob64() implementation. (user: drh, tags: trunk)
18:44
[7e4978c003] Add new APIs that take 64-bit length parameters: sqlite3_malloc64(), sqlite3_realloc64(), sqlite3_bind_blob64(), sqlite3_bind_text64(), sqlite3_result_blob64(), and sqlite3_result_text64(). Add the sqlite3_msize() interface. Internal memory allocation routines now use 64-bit unsigned length parameters for safety. Fix the sqlite3_get_table() to use sqlite3_realloc64() to avoid a integer overflow problem. (user: drh, tags: trunk)
17:27
[65884d4f81] Add the SQLITE_USER_AUTHENTICATION extension to the trunk. This extension is disabled by default. Special compilation procedures are need to enable it. (user: drh, tags: trunk)
17:14
[b149ef5c63] Closed-Leaf: Clean up some #includes in the extension API implementation. (user: drh, tags: user-auth)
2014-09-09
20:30
[6ab76c5fed] Closed-Leaf: Change the name of the _texte64() interfaces to just _test64(), without the "e". (user: drh, tags: 64-bit-lengths)
17:27
[94954850cf] Add new APIs that take 64-bit length parameters: sqlite3_malloc64(), sqlite3_realloc64(), sqlite3_bind_blob64(), sqlite3_bind_texte64(), sqlite3_result_blob64(), and sqlite3_result_texte64(). Internal memory allocation routines also now use 64-bit unsigned length parameters for safety. Also add the sqlite3_msize() interface. Fix the sqlite3_get_table() to use sqlite3_realloc64() to avoid a integer overflow problem. (user: drh, tags: 64-bit-lengths)
14:47
[8440f093ba] Non-working preliminary implementation attempts on user authentication. (user: drh, tags: user-auth)
2014-09-08
15:04
[c2885c6bb2] Merge support for large files on Android from trunk. (user: drh, tags: sessions)
2014-09-06
17:06
[ad7063aa1a] Fixes to os_unix.c to support database (and other) files larger than 2GiB on Android. (user: dan, tags: trunk)
16:52
[9dca7ce557] Leaf: Merge latest trunk changes with this branch. (user: dan, tags: android-large-filles)
16:49
[e7fae33c07] Fixes to os_unix.c to support database (and other) files larger than 2GiB. (user: dan, tags: android-large-filles)
16:39
[e62aab5e92] Fix typos in comments. No code changes. (user: peter.d.reid, tags: trunk)
03:38
[4d4fb197dc] Do not record a page-size change if the attempt to change the page size failed due to an OOM error. (user: drh, tags: trunk)
03:16
[27e3ca3e0f] Add the sqlite3_memdebug_title_count global variable, used during debugging to count the number of invocations of test_memdebug_settitle. By examining this variable in the debugger after a segfault, one can then set a breakpoint on test_memdebug_settitle that will fire just before the problem. (user: drh, tags: trunk)
02:00
[a758465e3c] Fix a couple of typos in comments. No changes to code. (user: mistachkin, tags: trunk)
01:35
[73954f93c4] Query planner heuristic update: When doing a full table scan on a table that has an equality constraint on an unindexed column, do not allow the estimated number of output rows to be greater than half the total number of rows in the table. (user: drh, tags: trunk)
2014-09-05
05:58
[733119067757814609a] Fix harmless compiler warning. (user: mistachkin, tags: trunk)
2014-09-02
19:59
[2954ab5010] Add an experimental extension for applying bulk updates to databases. (user: dan, tags: experimental-bulk-update)
15:57
[696dc935f7] Merge the latest trunk changes into the apple-osx branch. (user: drh, tags: apple-osx)
15:49
[d4cce2c71e] Merge the latest trunk changes, including the multi-threaded sorter, into the sessions branch. (user: drh, tags: sessions)
2014-09-01
23:06
[9779c7a9eb] Update comments in the ANALYZE command that describe how the Stat4Accum objecct is passed around within the VDBE. No changes to functional code. (user: drh, tags: trunk)
22:34
[4cae93f8ae] Avoid a confusing (though correct) argument to the sqlite3_result_blob() function in the implementation of ANALYZE. (user: drh, tags: trunk)
19:29
[be0a037244] For sqlite3_win32_is_nt(), assume WinRT is NT-based and revise #ifdef ordering to prefer the ANSI version of GetVersionEx, when available. (user: mistachkin, tags: trunk)
18:21
[672e7387b1] Tweak the documentation for SQLITE_LIMIT_WORKER_THREADS. No changes to executable code. (user: drh, tags: trunk)
17:36
[b1c0f0bc1b] Add support for using separate worker threads to speed large sorts. The SQLITE_MAX_WORKER_THREADS and SQLITE_DEFAULT_WORKER_THREADS compile-time options and the SQLITE_LIMIT_WORKER_THREADS argument to sqlite3_limit() and the "PRAGMA threads=N" pragma are added. (user: drh, tags: trunk)
13:37
[b0f6b91f36] Attempt to make the xDelete method of the unix VFS more robust on VxWorks. (user: drh, tags: trunk)
13:29
[839c7996ee] Micro-optimizations in sqlite3BtreeNext() and sqlite3BtreePrevious(). (user: drh, tags: trunk)
01:16
[3ef3246120] Fix harmless compiler warnings for MSVC. (user: mistachkin, tags: trunk)
01:15
[51f33cf129] Leaf: Merge updates from trunk. (user: mistachkin, tags: asciiMode)
2014-08-30
15:49
[f61db04be4] In the command-line shell, added options --lookaside, --pagecache, and --scratch used to configure auxiliary memories. (user: drh, tags: trunk)
2014-08-29
19:06
[33fa041049] Closed-Leaf: 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). (user: drh, tags: threads)
14:40
[35c44a3c73] Merge recent performance enhancements from trunk onto the threads branch. (user: drh, tags: threads)
14:20
[2a74129a21] Note a fault after all, rather a testing mistake. Move this change back to trunk. Was: Avoid an unnecessary OP_Move operation for expression subqueries. (user: drh, tags: trunk)
12:29
[462f42af52] Closed-Leaf: Contains a fault. Was: Avoid an unnecessary OP_Move operation for expression subqueries. (user: drh, tags: mistake)
11:24
[8c57bcc327] Closed-Leaf: Add the sqlite3VdbeChangeDest() routine that can be used to eliminate OP_Move opcodes. (user: drh, tags: experimental)
2014-08-28
19:38
[fdd478bb11] Improved WHERETRACE messages for the estimated output row reductions from range scans. (user: drh, tags: trunk)
17:30
[a9daf3ac44] Fix a problem causing an inaccurate stat4-based estimate for the number of rows visited by a range scan. (user: drh, tags: trunk)
17:20
[6ba609522e] Closed-Leaf: Add a testcase() macro to help verfity the row estimation logic. (user: drh, tags: stat4-experimental)
16:01
[052d89b554] Fix a problem causing an inaccurate stat4-based estimate for the number of rows visited by a range scan. (user: dan, tags: stat4-experimental)
13:42
[c931ca2b77] 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. (user: drh, tags: trunk)
2014-08-27
23:18
[bdb6e4978d] Refactor the sqlite3PcacheFetch() routine into three separate routines, which are significantly faster overall and about 100 bytes smaller in size as well. (user: drh, tags: trunk)
17:53
[029a6dc744] Add a VDBE synopsis comment for clarification. (user: mistachkin, tags: trunk)
17:48
[d8b1c43361] Add a missing ticket number to a comment in index7.test. (user: dan, tags: trunk)
17:37
[fcebca166f] 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]. (user: dan, tags: trunk)
14:14
[6c1ee3e388] 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. (user: drh, tags: trunk)
03:28
[1624916c6e] 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. (user: drh, tags: trunk)
00:50
[f94cacc393] Performance enhancement in sqlite3VdbeMemNulTerminate(). (user: drh, tags: trunk)
2014-08-26
15:06
[f1f94a971e] 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. (user: drh, tags: trunk)
02:15
[08ae974ac8] Merge recent performance enhancements and the CAST operator enhancements into the sessions branch. (user: drh, tags: sessions)
02:02
[5c27311105] Merge recent performance enhancements and the CAST operator enhancements into the apple-osx branch. (user: drh, tags: apple-osx)
2014-08-25
22:43
[6c8f86e4e0] Merge the CAST operator enhancements from trunk. (user: drh, tags: threads)
22:37
[af364cce9d] Add an assert() and five testcase() macros to the OP_Cast opcode implementation to help verify that it is fully tested. (user: drh, tags: trunk)
21:11
[1ad70ec550] Minor changes to the CAST logic to make it more testable. (user: drh, tags: trunk)
20:21
[42505e5a81] Test cases added for using unary "+" and CAST operators on the RHS of range constraints and verifying that STAT3/4 can use those constraints. (user: drh, tags: trunk)
20:11
[91d8a8d0b7] 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. (user: drh, tags: trunk)
18:29
[e06dc6f0c3] 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. (user: dan, tags: trunk)
13:27
[dfdc900f5d] Merge the recent performance enhancements implemented on trunk into the threads branch. (user: drh, tags: threads)
11:33
[54164ce47c] Remove the pager_lookup() function since it is redundant with sqlite3PagerLookup(). (user: drh, tags: trunk)
11:20
[3ca5846da7] Change the name of the VdbeMemRelease() macro to VdbeMemReleaseExtern() to more accurately reflect what it does. Performance enhancement to the sqlite3VdbeMemRelease() function. (user: drh, tags: trunk)
2014-08-24
02:53
[0c7e1b875a] The sqlite3VdbeChangeEncoding() routine goes about 3x faster if the sqlite3VdbeMemTranslate() subroutine is not inlined. (user: drh, tags: trunk)
01:32
[c63311e2f3] Patch the sqlite3PagerWrite() method in the Pager to run a bit faster. (user: drh, tags: trunk)
2014-08-23
23:15
[0371cc3bb0] Faster implementation of pcache1Fetch() (user: drh, tags: trunk)
20:25
[bd41d394d4] Faster implementation of the sqlite3ApiExit() routine. (user: drh, tags: trunk)
19:42
[6da6f46d0c] Another memory allocator performance optimization. (user: drh, tags: trunk)
19:08
[45abd5c0ba] Fix a variable-declaration after code problem in btree.c. Harmless in GCC and CLANG but unacceptable for MSVC. (user: drh, tags: trunk)
19:04
[f83daa16f6] Changes to sqlite3ScratchMalloc() that make the entire memory allocation interface a little faster and about 100 bytes smaller. (user: drh, tags: trunk)
18:17
[802148f311] Make the implementation of the sqlite3_aggregate_context() interface faster for second an subsequent invocations. This helps all aggregate functions to perform better. (user: drh, tags: trunk)
17:41
[0c0a603950] Improved performance in the type handling of arithmetic operators in the VDBE. (user: drh, tags: trunk)
17:21
[25f2246be4] Performance optimization in the applyAffinity() logic inside the VDBE. (user: drh, tags: trunk)
2014-08-22
23:33
[ce123b5c59] 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. (user: drh, tags: trunk)
22:26
[3eb0843903] Factor the saveAllCursors() routine of btree.c into two separate routines, for a noticable performance improvement. (user: drh, tags: trunk)
21:58
[8914530644f] Performance enhancements in the b-tree mutex logic. (user: drh, tags: trunk)
20:35
[6bcf1af6a4] Combine the pcacheAddToDirtyList() and pcacheRemoveFromDirtyList() routines into a single pcacheManageDirtyList() routine. The resulting binary code is slightly faster and a few bytes smaller. (user: drh, tags: trunk)
19:12
[9fe0f0754c] Leaf: Revise #ifdef ordering to prefer the ANSI version of GetVersionEx, when available. (user: mistachkin, tags: winrt)
18:48
[a929be5519] Performance enhancement in sqlite3PutVarint(). (user: drh, tags: trunk)
18:00
[cf561d1f0b] Split the sqlite3Error() routine into sqlite3Error() and sqlite3ErrorWithMsg(), for a slight size reduction and performance increase. (user: drh, tags: trunk)
15:40
[f7f2160db0] Performance improvement in the printf() logic by avoiding unnecessary stack pointer movement. (user: drh, tags: trunk)
15:19
[ebc10e46c1] Improve the performance and reduce the size of the sqlite3VdbeSerialGet() routine by avoiding the use of stack. (user: drh, tags: trunk)
14:56
[3f55484e81] Closed-Leaf: Handle the 4-byte integer case in the stackless routine. (user: drh, tags: experimental)
14:34
[8267d82174] Get the sqlite3VdbeSerialGet() routine to run faster by avoiding the use of local variables. (user: drh, tags: experimental)
13:22
[750bb0a096] Change a while-loop into a do-loop in sqlite3VdbeSerialPut() for a small size reduction and performance improvement. (user: drh, tags: trunk)
11:11
[369c480cda] Enhance the spellfix extension with the ability to specify a rowid when inserting new rows. (user: drh, tags: trunk)
2014-08-21
20:26
[14b0f561fe] Simplify the interface to the symbol table, saving 600 bytes of code space. (user: drh, tags: trunk)
19:11
[2f59e71fbf] For sqlite3_win32_is_nt(), assume WinRT is NT-based. (user: mistachkin, tags: winrt)
16:09
[0b9e2c3269] 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. (user: drh, tags: sessions)
14:10
[7029b3404d] 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]. (user: drh, tags: trunk)
2014-08-20
23:42
[91594aae07] Increase the version number to 3.8.7 (user: drh, tags: trunk)
23:38
[bc985caa78] 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. (user: drh, tags: trunk)
18:43
[49f44d355f] A small performance improvement in freeSpace() by special-casing the relatively common case of an empty freelist. (user: drh, tags: trunk)
17:56
[fe4fd014b4] Reimplement the freeSpace() routine in btree.c so that it runs faster. (user: drh, tags: trunk)
14:37
[7e63089a19] Refactor local variable names in the freeSpace() routine of btree.c for improved understandability. (user: drh, tags: trunk)
13:35
[121308fa86] Size reduction and performance improvements in btree.c and the allocateSpace() routine. Also fix an assert() in freeSpace(). (user: drh, tags: trunk)
13:25
[eea0661798] Add SQLITE_API macros in front of interface routines in the test_intarray.c extension. (user: drh, tags: trunk)
13:17
[fe51d3aa0c] Closed-Leaf: Change an assert() added by the previous commit into a testcase(). Fix a separate assert() in btree.c:freeSpace(). (user: drh, tags: btree-speedup)
11:56
[1cb1cd6493] Further size reduction and performance improvement in btree.c:allocateSpace(). (user: drh, tags: btree-speedup)
10:42
[6c66beae97] Fix a typo in the showdb usage message. (user: dan, tags: trunk)
00:54
[73637d12e3] Minor performance improvement and size reduction for the btree-page space allocator. (user: drh, tags: trunk)
2014-08-19
23:04
[d280157da0] Modify the memsubsys1-3.1.4 test so that it does not fail arbitrarily due to variations in the behavior of system malloc(). (user: drh, tags: trunk)
20:41
[44d5bd4cc3] A better fix for the sqlite3_trace() problem. Ticket [11d5aa455e0d98f3c1e6a] (user: drh, tags: trunk)
20:27
[0d4d3df4bc] Make sure the sqlite3_trace() callback is invoked, even if the prepared statement was marked "expired" before it ever entered sqlite3_step(). Ticket [11d5aa455e0d98f3c1e6a08]. (user: drh, tags: trunk)
19:28
[d09d63c077] Improvements to output formatting with the ".trace" command in the command-line shell. (user: drh, tags: trunk)
09:15
[f10a611126] Minor changes to do with the Tcl tea extension package autoconf system. (user: dan, tags: trunk)
2014-08-18
13:48
[419d286a2f] Merge the latest trunk changes, and in particular the refactoring of the object names in the command-line shell. (user: drh, tags: sessions)
13:45
[11a70e1ae7] Refactor the names of state objects in the command-line shell implementation.. (user: drh, tags: trunk)
2014-08-15
16:13
[28a379fcd4] Fix compiler warnings on WinCE. (user: drh, tags: trunk)
16:10
[b91fcb3b1b] Merge the 3.8.6 changes into the apple-osx branch. (user: drh, tags: apple-osx)
15:46
[05807c4122] Merge the 3.8.6 release into the threads branch. (user: drh, tags: threads)
15:10
[2acbeac1fd] Update the sessions branch for version 3.8.6. (user: drh, tags: sessions)
11:46
[9491ba7d73] Version 3.8.6 (user: drh, tags: trunk, release, version-3.8.6)
2014-08-14
19:53
[3f45b8192d] Fix an assert that can fail if the database file is corrupted. (user: dan, tags: trunk)
18:31
[cc910b8e0c] Closed-Leaf: Fix compiler warnings on WinCE. (user: mistachkin, tags: winCeWarn)
14:02
[a608fd1d52] Merge the pre-3.8.6 changes into the threads branch. (user: drh, tags: threads)
13:39
[08058df3af] Merge the pre-3.8.6 changes from trunk into the apple-osx branch. (user: drh, tags: apple-osx)
13:06
[13a2d90a28] Fix typos in comments used to help generate documentation. No changes to code. (user: drh, tags: trunk)
02:59
[f5cce9db10] Add icon to the Windows shell executable. This is a resource change only, no changes to code. (user: mistachkin, tags: trunk)