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100 check-ins occurring around 3175220747f5d4da.

2015-06-30
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
2015-06-29
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
2015-06-28
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
2015-06-27
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
2015-06-26
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
2015-06-25
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
2015-06-24
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
2015-06-23
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
2015-06-22
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
2015-06-20
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
2015-06-19
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
17:19
Add the MemPage.xParseCell method and provide various implementations (variations on the former btreeParseCellPtr()) depending on the page type. check-in: 41d03d88 user: drh tags: trunk
15:07
Make cellSizePtr() a method on the MemPage object, with alternative implementations depending on the page type. This results is a small performance improvement and size reduction. check-in: 02f7e9d7 user: drh tags: trunk
2015-06-18
15:26
Further #ifdef changes in speedtest1.c in order to support SQLite back to version 3.3.9 and perhaps even earlier. check-in: 9246eca5 user: drh tags: trunk
14:32
Pervent the likelihood() function from moving ON clause terms of a LEFT JOIN into the WHERE clause. Fix for ticket [5f60b11fc8e23490e2] check-in: ed96e14a user: drh tags: trunk
14:09
Show the values of Expr.flag in the AST of ".selecttrace" check-in: a84d1004 user: drh tags: trunk