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100 check-ins occurring around 2f31bdd1b2186659.
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2015-07-01
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| 04:08 | Fix some harmless compiler warnings. (check-in: 307195c8 user: drh tags: trunk) | |
| 01:31 | Change integrity_check to analyze the cells of a page in reverse order, as this will tend to insert the cells into the analysis heap in increasing order by address, which is the most efficient way to load a min-heap. (check-in: 59ad912c user: drh tags: trunk) | |
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2015-06-30
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| 17:28 | Make use of the _byteswap_ushort() and _byteswap_ulong() compiler intrinsics for MSVC, when available. (check-in: fe144dd7 user: mistachkin tags: trunk) | |
| 16:29 | Merge all the latest enhancements from trunk. This merge include FTS5 and a number of notable performance enhancements. (check-in: 39936b33 user: drh tags: sessions) | |
| 15:10 | Make use of built-in bswap32() and bswap16() functions in GCC/Clang for a significant performance improvement there. (check-in: 8bfcda3d user: drh tags: trunk) | |
| 14:01 | Only use __builtin_bswap16() with GCC 4.8 and later. (Closed-Leaf check-in: ce8177e3 user: drh tags: bswap-functions) | |
| 13:28 | Remove the use of htonl() in the previous check-in due to linkage issues. Add the get2byteAligned() macro and use it for access to the cell offsets on btree pages for about a 1% performance gain. (check-in: 79ff36b7 user: drh tags: bswap-functions) | |
| 12:47 | Make use of htonl() and __builtin_bswap32() for faster implementations of sqlite3Get4byte() and sqlite3Put4byte(). (check-in: bc27ebd7 user: drh tags: bswap-functions) | |
| 11:07 | Change an unreachable branch into an assert() in sqlite3PagerAcquire() and optimize sqlite3PcacheOpenSavepoint() by factoring out rarely used code into a subroutine. (check-in: b406b20e user: drh tags: trunk) | |
| 03:57 | Optimization to the sqlite3PcacheFetch() logic. (check-in: d9a0481c user: drh tags: trunk) | |
| 03:34 | Put all variable declarations for sqlite3PagerWrite() at the beginning of the block. Syntax only - no logic changes. (check-in: a0fa6b3b user: drh tags: trunk) | |
| 03:18 | Implement sqlite3Strlen30() using strlen() from the C library. (check-in: 8001aa52 user: drh tags: trunk) | |
| 03:13 | Change sqlite3ApiExit() so that its first argument is never NULL. (check-in: 791b706e user: drh tags: trunk) | |
| 02:47 | Put BtCursor objects on a singly-linked list instead of a doubly-linked list. Add the BTCF_Multiple flag. Only invoke saveAllCursors() when using a cursor that has BTCF_Multiple set. (check-in: 429ccef2 user: drh tags: trunk) | |
| 01:25 | Convert several 5-year-old and older NEVER() macros into assert(). (check-in: ed54c14e user: drh tags: trunk) | |
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2015-06-29
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| 23:01 | From sqlite3BtreeInsert(), bypass the btreeMoveto() routine for table inserts and go directly to sqlite3BtreeMovetoUnpacked(). (check-in: 53fe685d user: drh tags: trunk) | |
| 20:53 | Add a bypass path in sqlite3PagerWrite() for pages with the PGHDR_WRITEABLE bit set, for about a 1% performance increase. (check-in: ba425a6a user: drh tags: trunk) | |
| 19:08 | Combine subjRequiresPage() and subjournalPage() into a single subjournalPageIfRequired() routine. (check-in: 3b65eb56 user: drh tags: trunk) | |
| 18:29 | Add the PGHDR_WRITEABLE bit for PgHdr.flags which is used to distinguish between pages that are on the dirty list and pages that are safe to modify. (check-in: 7c4ef7b7 user: drh tags: trunk) | |
| 18:14 | Fix over-length source code lines in pager.c. (check-in: 14de3d39 user: drh tags: trunk) | |
| 15:41 | Fix minor problems in the ota demo application. (check-in: 6aaaec6e user: dan tags: trunk) | |
| 14:11 | Simplifications and performance improvement in pager_write(). (check-in: ab7aeeea user: drh tags: trunk) | |
| 04:21 | Add the new PGHDR_CLEAN bit to PgHdr.flags in pcache.c. This bit is always the opposite of PGHDR_DIRTY. Use the extra bit to avoid a comparison for a small performance boost. (check-in: 8619fc34 user: drh tags: trunk) | |
| 03:28 | Very small size reduction and performance increase in sqlite3BitvecTest(). (check-in: 9b3a7281 user: drh tags: trunk) | |
| 00:52 | Move an assert() and testcase() into their correct position within getAndInitPage(). (check-in: 18115164 user: drh tags: trunk) | |
| 00:21 | Use tail recursion in pcache1Unpin() to get a small size reduction and speed improvement. (check-in: fde70472 user: drh tags: trunk) | |
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2015-06-28
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| 17:33 | Comment typo fix and minor cleanup in the pager. No logic changes. (check-in: 94ef1701 user: drh tags: trunk) | |
| 02:58 | Avoid unnecessary calls to sqlite3VdbeSerialTypeLen() for integer serial types, for a small size reduction and a speed increase. (check-in: 9cd30d33 user: drh tags: trunk) | |
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2015-06-27
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| 23:55 | Make greater use of BtCursor.curIntKey. (check-in: 63998471 user: drh tags: trunk) | |
| 22:49 | Add the BtCursor.curIntKey field and use it for a small size reduction and performance boost. (check-in: 4a17df13 user: drh tags: trunk) | |
| 20:55 | Enhancements to the previous check-in to make it a little smaller and faster. (check-in: 291d9e0c user: drh tags: trunk) | |
| 19:45 | Performance improvements in moveToChild() by shifting some work over to getAndInitPage(). Net improvement is about 800K cycles at cost of 30 bytes. (check-in: 1956a4ce user: drh tags: trunk) | |
| 15:51 | Manually inline the call from getAndInitPage() to btreeGetPage() for a savings of 2.5 million cycles at a cost of less than 100 bytes. (check-in: 7f65b96b user: drh tags: trunk) | |
| 14:59 | Add releasePageNotNull() as an alternative to releasePage() when the argument is guaranteed to be non-NULL, and use it for a small performance gain. (check-in: 9383a688 user: drh tags: trunk) | |
| 03:58 | Add the Mempage.aDataOfst field and use it in sqlite3BtreeMovetoUnpacked() for about a 2 million cycle gain. (check-in: bee94dc3 user: drh tags: trunk) | |
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2015-06-26
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| 20:45 | Treat compilation of FTS5 for the loadable extension specially with MSVC. (check-in: 7c610276 user: mistachkin tags: trunk) | |
| 20:25 | Merge fts5 branch into trunk. (check-in: d27d9965 user: dan tags: trunk) | |
| 20:14 | Merge latest trunk with this branch. (Closed-Leaf check-in: 8671b9e1 user: dan tags: fts5) | |
| 20:13 | Remove unnecessary lines from fts3.h and main.mk. (check-in: c1b268ce user: dan tags: fts5) | |
| 20:08 | Fix a segfault that could follow an OOM error in fts5. (check-in: 713239b8 user: dan tags: fts5) | |
| 19:43 | Small size reduction and performance increase on the OP_IdxInsert opcode. (check-in: b6bedc2e user: drh tags: trunk) | |
| 19:33 | Merge latest trunk changes with this branch. (check-in: 2a1af0f2 user: dan tags: fts5) | |
| 18:50 | Fix some cases in the fts5 code where a corrupt database could cause a buffer overread. (check-in: 360c57bb user: dan tags: fts5) | |
| 18:47 | Further optimization of SQL function dispatch. Improvements to opcode documentation. (check-in: eaddbf29 user: drh tags: trunk) | |
| 18:16 | Cache the sqlite3_context structure in the P4 operand of VDBE programs for faster SQL function dispatch. (check-in: 2abc44eb user: drh tags: trunk) | |
| 17:10 | Merge changes to get FTS5 working with MSVC. (check-in: 954231d2 user: mistachkin tags: fts5) | |
| 16:55 | Merge upstream changes. Get the test fixture working with FTS5. Fix compiler warnings. (Closed-Leaf check-in: bfcd1608 user: mistachkin tags: fts5Msvc) | |
| 16:42 | Remove fts5 initialization code from core file main.c. (check-in: c91a93b3 user: dan tags: fts5) | |
| 16:17 | Add FTS5 DLL target for MSVC. (check-in: be85b824 user: mistachkin tags: fts5Msvc) | |
| 13:31 | Cache the most recently sqlite3_context used by OP_Function and reuse it on subsequent calls, if appropriate. This gives a noticable performance boost. (Closed-Leaf check-in: 2f31bdd1 user: drh tags: function-ctx-cache) | |
| 04:34 | Initial changes to get FTS5 working with MSVC. (check-in: ef2052f8 user: mistachkin tags: fts5Msvc) | |
| 03:12 | Fix harmless compiler warning in assert statement. (check-in: 7097716c user: mistachkin tags: trunk) | |
| 02:41 | Simplify the pcache by not keeping continuous track of page 1 but instead just loading page 1 on the rare occasions when it is actually needed. (check-in: 015302f1 user: drh tags: trunk) | |
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2015-06-25
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| 23:52 | Optimization to sqlite3_value_bytes() for the common case that does not require a data transformation. (check-in: 8d79f3a1 user: drh tags: trunk) | |
| 20:36 | Fix Makefile.in to account for recent changes. Update fts5 test scripts so that they do not run if SQLITE_ENABLE_FTS5 is not defined. (check-in: 31752207 user: dan tags: fts5) | |
| 20:16 | Merge latest trunk changes into this branch. (check-in: fcd8f7ce user: dan tags: fts5) | |
| 20:10 | Add a script to combine all fts5 code into a single file - fts5.c - that can be used to build an SQLite loadable extension. (check-in: 46e86b06 user: dan tags: fts5) | |
| 19:53 | Simplifications and performance improvements in insertCell(). (check-in: 7d02e6c9 user: drh tags: trunk) | |
| 18:36 | More simplifications and performance improvements to cell allocation logic associated with allocateSpace(). (check-in: 78da0f69 user: drh tags: trunk) | |
| 16:01 | Reorder the terms of a conditional for a small performance gain. (check-in: d67b0ed1 user: drh tags: trunk) | |
| 15:44 | Merge all the latest enhancements from trunk. (check-in: 924f4712 user: drh tags: sessions) | |
| 15:21 | Remove a NEVER() that is in fact reachable. (check-in: f824e66b user: drh tags: trunk) | |
| 15:04 | Minor optimization to allocateSpace(). (check-in: d007bc33 user: drh tags: trunk) | |
| 13:03 | Enhance the Btree object to remember whether or not it is holding an Incrblob cursor. Use this knowledge to improve performance in the common case where it does not. (check-in: 476b1156 user: drh tags: trunk) | |
| 02:26 | Remove a line of code that doesn't do any useful work. (check-in: 3ee888be user: drh tags: trunk) | |
| 02:25 | Increase the default timeout on fuzzcheck to 120 seconds - sufficient for running under valgrind on a slow workstation. (check-in: fad0eacc user: drh tags: trunk) | |
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2015-06-24
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| 23:44 | Add the --timeout option to fuzzcheck. (check-in: a8f4f7fa user: drh tags: trunk) | |
| 23:17 | Fix fuzzcheck so that it works with SQLITE_OMIT_PROGRESS_CALLBACK. (check-in: 7a9c4eb3 user: drh tags: trunk) | |
| 18:22 | Add "ON CONFLICT" handling to the spellfix module. (check-in: 07937a81 user: drh tags: trunk) | |
| 17:21 | Add "ON CONFLICT" handling to the spellfix module. (Closed-Leaf check-in: 1d04def7 user: dan tags: spellfix-constraints) | |
| 14:45 | In the fuzzcheck test program, use the progress handler to limit the number of VDBE cycles to avoid getting stuck if the SQL under test contains an infinite CTE loop. Add the --limit-vdbe command-line option. (check-in: fbf9c432 user: drh tags: trunk) | |
| 14:36 | Fix the progress handler so that it does not fire too soon during an sqlite3_step() call other than the first. (check-in: b41ef5d6 user: drh tags: trunk) | |
| 13:32 | Fix a harmless compiler warning. (check-in: 3b6fa95e user: drh tags: trunk) | |
| 13:25 | Rig the fuzzcheck test program so that it times out after 10 seconds in case of an infinite loop in the test case. (check-in: 659cfc9d user: drh tags: trunk) | |
| 13:05 | Update the database fuzz test cases to cover all recent findings. (check-in: 47ba7d96 user: drh tags: trunk) | |
| 12:44 | Add the --rebuild object to fuzzcheck. (check-in: db87664a user: drh tags: trunk) | |
| 12:24 | Prevent an infinite loop while searching a corrupt freelist. (check-in: 4e5424fe user: drh tags: trunk) | |
| 12:07 | Strengthen the new balance_nonroot() code against various corrupt database problems. (check-in: 5ba98343 user: drh tags: trunk) | |
| 10:46 | Adjustment to a malloc test so that it accepts a narrow range of values to account for variations in malloc subsystems. (check-in: e0195070 user: drh tags: trunk) | |
| 01:07 | Remove an invalid NEVER() and add a test case to cover it. (check-in: 14b73d20 user: drh tags: trunk) | |
| 00:05 | Performance optimization on balance_nonroot() and related routines. 2.6% faster overall with a size increase of less than 750 bytes. (check-in: 25131e70 user: drh tags: trunk) | |
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2015-06-23
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| 23:31 | Mark some branches as unreachable after the recent change that recognizes mismatch result set sizes on compound SELECT statements sooner. (check-in: c8d1f305 user: drh tags: trunk) | |
| 21:35 | Testability improvement. (Closed-Leaf check-in: eed6a331 user: drh tags: btree-opt2) | |
| 18:47 | Improve test coverage of fts5. (check-in: df5ccea8 user: dan tags: fts5) | |
| 18:24 | Multiple overflow cells are always adjacent and sequential. Exploit this invariant for a small size reduction and performance increase and add assert()s to prove the invariant. (check-in: f77f2f48 user: drh tags: btree-opt2) | |
| 17:09 | Faster loading of cell pointers into the b.apCell array in balance_nonroot. (check-in: fda89b05 user: drh tags: btree-opt2) | |
| 16:00 | Avoid unnecessary cachedCellSize() calls in the cell partition adjustment phase of balance_nonroot(). (check-in: 6319ee12 user: drh tags: btree-opt2) | |
| 15:36 | Change pageInsertArray() and pageFreeArray() so that they use the CellArray object and compute cell sizes as needed, resulting in smaller and faster code. (check-in: f7f41818 user: drh tags: btree-opt2) | |
| 15:06 | Merge latest trunk changes with this branch. Add tests for columnsize=0. (check-in: ef44c71a user: dan tags: fts5) | |
| 14:49 | Improvements to the way balance_nonroot() constructs the b.apCell array of pointers to cells. (check-in: ee44bb25 user: drh tags: btree-opt2) | |
| 13:02 | Merge the compound SELECT operator fix from trunk. (check-in: a7be554f user: drh tags: btree-opt2) | |
| 12:19 | Test that the left and right sides of a compound SELECT operator have the same number of expressions in the expanded expression list before beginning to generate code. (check-in: 4df852ce user: dan tags: trunk) | |
| 02:37 | Avoid computing cell sizes in balance_nonroot() until they are really needed. This gives an overall 1.7% performance gain for about 1000 extra bytes of code space. (check-in: 43844537 user: drh tags: btree-opt2) | |
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2015-06-22
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| 20:02 | Change the way that balance_nonroot() partitions cells between the sibling pages such that a scan of the cell size array is not required. (check-in: 16872871 user: drh tags: btree-opt2) | |
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2015-06-20
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| 18:13 | Split out all four cases of cellSizePtr() into different methods, each optimized for the specific page type. This gives a 0.36% performance increase at a cost of about 300 bytes of code. (Leaf check-in: 522502ec user: drh tags: btree-opt) | |
| 14:11 | Update the fuzztest data using the latest test vectors discovered by AFL. (check-in: b97f9cf7 user: drh tags: trunk) | |
| 13:18 | Make sure that the likelihood() function does not mess up generation of result-set code when it is used (inappropropriately) in a result-set expression. (check-in: 7cdbae62 user: drh tags: trunk) | |
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2015-06-19
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| 20:31 | Performance improvements in btreeParseCell() by inlining the varint decoder. (check-in: 172a864d user: drh tags: trunk) | |
| 20:08 | Fix corner cases involving corrupt varint values in record headers. (Closed-Leaf check-in: 3189116b user: drh tags: btree-opt) | |
| 18:24 | Performance improvements in btreeParseCell() by inlining the varint decoder. (check-in: faab0ed9 user: drh tags: btree-opt) | |