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11870 Commits

Author SHA1 Message Date
drh
a9ab481fca Fix harmless compiler warnings. 
FossilOrigin-Name: a7e5fcd66659750eb2f4675082df324e7cf35427
 2013-12-11 11:00:44 +00:00
mistachkin
53cd964648 Fix harmless compiler warning. 
FossilOrigin-Name: 2525296d919245ebb01077aad541e4ae6eab7940
 2013-12-11 02:21:19 +00:00
drh
2dc0648a80 Do not run the tool/vdbe-compress.tcl script that generates the 
vdbeExecUnion object that reduces the size of the sqlite3VdbeExec()
stack frame unless the SQLITE_SMALL_STACK compile-time option is
specified as on of the OPTS in the makefile.  The vdbeExecUnion object
gets in the way of C-compiler optimizer and results in slightly slower code.

FossilOrigin-Name: 4d0781473a465b4ab0a307914014f3d2ddd0ce33
 2013-12-11 00:59:10 +00:00
drh
024045fe6e Avoid unnecessary calls to sqlite3VdbeSerialType() from within 
sqlite3VdbeSerialPut().

FossilOrigin-Name: 079c04a5013074b68f7d90f1ce8bf8e7092ad8a2
 2013-12-10 21:38:08 +00:00
drh
3e6c060fac In the OP_MakeRecord opcode, factor out affinity changes into separate loop, 
for a slight performance advantage.

FossilOrigin-Name: 1c6ee9b85f61e5cdb5d9b7815cddf526dc78aaa7
 2013-12-10 20:53:01 +00:00
drh
b0e7704e9f Simplify and improve the performance of the sqlite3VdbeMemGrow() routine. 
FossilOrigin-Name: 48ecf18774ba9572d86696c60d87007a619d9f53
 2013-12-10 19:49:00 +00:00
dan
6f68f1640d Use SQLITE_FCNTL_SYNC instead of SQLITE_FCNTL_SYNC_OMITTED. Add documentation in for FCNTL_SYNC and FCNTL_COMMIT_PHASETWO. 
FossilOrigin-Name: 46231af985a1a872d1dc3418591cbaacb0b7c249
 2013-12-10 17:34:53 +00:00
dan
d22d7b4daa Merge changes from the trunk. 
FossilOrigin-Name: 3ee736a39d1fc175a297c5fdd0d2e1c5a9b5b18e
 2013-12-10 16:35:42 +00:00
dan
a01abc302d Fix handling of errors returned by the SQLITE_FCNTL_OMIT_SYNCED file-control. 
FossilOrigin-Name: d9a5f44f4a27336d41e60b6c3791bd018fbbff6f
 2013-12-10 16:27:59 +00:00
drh
038b7bc4ef Simplifications to the OP_MakeRecord opcode and the sqlite3VdbeSerialPut() 
helper function.

FossilOrigin-Name: 7277a769694787e0332d1a4efc02041834661e2a
 2013-12-09 23:17:22 +00:00
mistachkin
401387553d Correct the VFS name as reported by the file control when explicitly using the 'win32-longpath' VFS. 
FossilOrigin-Name: c43b59dac1fbb67ec3a9d921005543046ad416ce
 2013-12-09 21:48:49 +00:00
drh
a2a3028d5f Reduce the number of times that OP_Column calls sqlite3VdbeMemMakeWriteable(). 
FossilOrigin-Name: 6b51863553e51334880fb322bdf74e51e35d0e61
 2013-12-09 21:06:46 +00:00
drh
2a8d2261ed Simplify the sqlite3BtreeKeyFetch() and sqlite3BtreeDataFetch() interfaces 
to the storage engine.

FossilOrigin-Name: bf97598592ff60fab2a06d8b31b0201200b91684
 2013-12-09 20:43:22 +00:00
dan
999cd08aae Modify the way some internal file-controls are invoked. In order to support multi-file transactions in the zipvfs extension. 
FossilOrigin-Name: 32fb1784af4594161d954343e3787db702000a4d
 2013-12-09 20:42:03 +00:00
drh
c65faab2e1 Minor performance optimizations in pager.c. 
FossilOrigin-Name: ba9eef5f5293633d1479e1d877bf338edb2a9471
 2013-12-09 19:25:28 +00:00
drh
a6353a3f64 Performance optimizations for sqlite3VXPrintf(). 
FossilOrigin-Name: 9227ad48e1612b32a3a3e9551c49890f93abc0a7
 2013-12-09 19:03:26 +00:00
drh
195134c6c3 Fix an incorrect test number in the output of the speedtest1.c program. No 
changes to the test algorithms.

FossilOrigin-Name: fbfc075a5a3c9c5c98353f396f9da7f7ec7c1c04
 2013-12-09 12:24:23 +00:00
drh
7250c547a5 Avoid unnecessary (no-op) calls to sqlite3DbFree() from sqlite3VdbeMemRelease(). 
FossilOrigin-Name: 2d6dd7c2eb5a64f8994162b564a99ef0014b7460
 2013-12-09 03:07:21 +00:00
drh
8f518837f9 Use memmove() rather than a home-made copy loop in insertCell() too. 
FossilOrigin-Name: a3d796b1673ca68ced247d63c22ddcfb1f9d56ea
 2013-12-09 02:32:19 +00:00
drh
9bb7c4ff4f Use memmove() rather than a home-made copy loop in dropCell() of btree.c, 
for a size reduction and performance improvement.

FossilOrigin-Name: 78e1706804e88a0dd5dc40bee838a3a504cfa53b
 2013-12-09 01:58:11 +00:00
drh
29f2bad6f0 Avoid unnecessary no-op calls from getAndInitPage() to btreeInitPage() 
in the btree.c logic.

FossilOrigin-Name: 81f5ae13b2e23daee03151d32515387b7f5ba5e5
 2013-12-09 01:04:54 +00:00
drh
7599d4aa44 Use putVarint32() instead of putVarint() for a quantity that can never 
exceed 2GiB - 1.

FossilOrigin-Name: 6996fb34445adedf463b66ed1f339ee1f27ce6e5
 2013-12-09 00:47:11 +00:00
drh
59bf00cb54 Another simplification to the OP_MakeRecord opcode, making it slightly 
faster and very slightly smaller.

FossilOrigin-Name: f2f5a3ce9d075c4b1ac586c5db3a623d9035402d
 2013-12-08 23:33:28 +00:00
drh
2a24287639 Avoid unnecessary calls to sqlite3VarintLen() from the OP_MakeRecord opcode. 
FossilOrigin-Name: 7a234fc3c5e7970ffe0b8d6ac33c26acb64b5c4d
 2013-12-08 22:59:29 +00:00
drh
1e98310a14 Interchange two conditions in an "if" statment in sqlite3PagerAcquire() for 
very slight (0.06%) overall performance increase.

FossilOrigin-Name: fbcc1a3ebb016225c3580181c908a2904cc184a5
 2013-12-08 19:54:52 +00:00
drh
9dcc7cd527 Increase the version number to 3.8.3. 
FossilOrigin-Name: 23d00f22872a907a8ebf5b80689ff7aa66686a07
 2013-12-07 17:01:23 +00:00
drh
689156fdbc At the start of each write transaction, check to see if the database file has 
been moved, and if it has refuse to start the transaction, returning an
SQLITE_READONLY_DBMOVED error code.

FossilOrigin-Name: 369a23e00644f3ff8b6a2d2ed73b8cb65e9f124b
 2013-12-07 16:56:09 +00:00
drh
a9c19f935c Back out the new device capability. The determination of whether or not a 
file has moved is now done strictly using a file-control.

FossilOrigin-Name: 9c59f5af7ac4908583fab85d37241f200c40f02d
 2013-12-07 16:45:05 +00:00
drh
b959a017b6 Actually look at i-node numbers to determine whether or not the database 
file has moved.

FossilOrigin-Name: 2b1884dc14f9a04a04eebb3245fbe0daaff399eb
 2013-12-07 12:29:22 +00:00
drh
4e8fe3ff91 Performance optimization to the moveToRoot() subroutine in btree.c. 
FossilOrigin-Name: b5842a70f8e26456a8f0d39539bc266f097480a4
 2013-12-06 23:25:27 +00:00
drh
b8a9bb4fb9 Use memcmp() instead of the BINARY collating function where possible, for 
a performance boost.

FossilOrigin-Name: c5a3a1af3c7bd34886e944a1fef2f6340ded24a0
 2013-12-06 22:45:31 +00:00
drh
72b8ef6ce3 Remove some commented-out code from sqlite3BtreeMovetoUnpacked() to try to make 
it more readable.

FossilOrigin-Name: 2d62d1131f8bbc4e1f8f7aeaf0d91e3237fe3b7c
 2013-12-06 22:44:51 +00:00
mistachkin
091a81b91d Add the SQLITE_READONLY_DBMOVED error code to the sqlite3ErrName() function. 
FossilOrigin-Name: 7789f801d720db5394117e764675cd4bbe6b2da1
 2013-12-06 19:58:32 +00:00
drh
3fee8a63c8 Only error out on a database file move when attempting to start a write 
transaction.  Assume read transactions are still safe.  And make the error
SQLITE_READONLY_DBMOVED instead of SQLITE_IOERR_NODB.

FossilOrigin-Name: 28348f2ada98c616241a51aecb70b63e87e6ddbb
 2013-12-06 17:23:38 +00:00
drh
1b1f30bb5e Add code to detect if the database file is moved or deleted out from under 
SQLite and return an SQLITE_IOERR_NODB.

FossilOrigin-Name: 8759a8e4d83b163e315eff316cf163f6ea42f2bb
 2013-12-06 15:37:35 +00:00
dan
6f04b95f02 Version 3.8.2 
FossilOrigin-Name: 27392118af4c38c5203a04b8013e1afdb1cebd0d
 2013-12-06 14:53:30 +00:00
drh
224f66fba3 Fix harmless compiler warnings and improve the MSVC makefile. 
FossilOrigin-Name: c632567063d81c4be404ce58cbac0eff7412f565
 2013-12-05 17:12:47 +00:00
drh
47676fedf6 Fix two potential (and apparently harmless) shift overflows discovered by 
the -fcatch-undefined-behavior option of clang.

FossilOrigin-Name: e19eead8c9977ed4f00eac54c5bc7e90db78caa8
 2013-12-05 16:41:55 +00:00
mistachkin
5fac42002a Make use of the CC nmake macro even when cross-compiling (with MSVC). 
FossilOrigin-Name: aae7b30ebd9601882a02fe8cf46fbf0390ec3fac
 2013-12-03 23:33:29 +00:00
mistachkin
3f9cd2ae75 Fix harmless compiler warnings. 
FossilOrigin-Name: a12d214ecccc5d3372dbcedc88705b0092363971
 2013-12-03 22:33:35 +00:00
mistachkin
1fa85a15df Add memory subsystem related defines to the compile-time options list. 
FossilOrigin-Name: 52a44146dd7c5a7662545042045e23deab302c96
 2013-12-03 22:32:48 +00:00
drh
7f59475fda Remove a branch in STAT4 logic that is no longer reachable after 
the previous change.

FossilOrigin-Name: eca7d3f1612c7a009a9e4ef89f76f9b7e275d1e6
 2013-12-03 19:49:55 +00:00
drh
7190e07fc0 Fix a possible (and probably harmless) uninitialized variable in STAT3/4. 
FossilOrigin-Name: 33ad4f91477907b7b3e5808c7ba11aacc9a83ba6
 2013-12-03 19:16:06 +00:00
dan
b5f68b0c8c Fix an alignment problem in the stat3/stat4 code affecting 32-bit platforms. 
FossilOrigin-Name: 14f9bc79014e5762b88b9f0b98f4d47a8092d127
 2013-12-03 18:26:56 +00:00
dan
1868cbc78c Fix a typo in fts3varint.test preventing the valgrind permutation test from running. 
FossilOrigin-Name: b654a4ec729c86c6e94365fb0d3f83c598d4461a
 2013-12-03 17:09:53 +00:00
dan
070865da8d Modify test file conflict2.test so that it works with the "inmemory_journal" permutation. 
FossilOrigin-Name: e4164fd8f75ce1c8d63bec70db7049b68208c12c
 2013-12-03 10:35:00 +00:00
drh
9a01c16df8 Remove an unnecessary branch from the UPDATE logic - one that was also 
unreachable except following an OOM on x64.

FossilOrigin-Name: 72f972771457b8c8d9f859238d6a72b43f41d2c3
 2013-12-03 10:14:28 +00:00
dan
89bc021850 Add a "database_may_be_corrupt" directive to test file fuzz3.test. Reformat an assert() statement in vdbeaux.c to make its intent clearer. 
FossilOrigin-Name: 9d8a0e132163f7adeaabbf6baba119e159addd41
 2013-12-03 09:49:52 +00:00
drh
d5e4547084 Change some unreachable test conditions to NEVER(). 
FossilOrigin-Name: 7d99858bec699dface548c77649dfc50e7fb50d8
 2013-12-03 02:52:11 +00:00
drh
47b927d2c3 Fix a harmless compiler warning on MacOS. 
FossilOrigin-Name: 74328de1d720fb35a97b476034406ca17d35ff5f
 2013-12-03 00:11:40 +00:00
drh
2a702db1cf Another #if SQLITE_VERSION_NUMBER macro in speedtest1.c for compatibility 
with older versions of SQLite.

FossilOrigin-Name: bc8eacc7f71413184ef5be1412e51f8fd7174cd1
 2013-12-02 21:25:40 +00:00
drh
d79e9c5802 Still more #if SQLITE_VERSION_NUMBER macros in test/speedtest1.c to enable 
compilation against older versions of SQLite.

FossilOrigin-Name: 4b20cf4206ac12975ca9c4ec7ef76aa21bbd734d
 2013-12-02 01:24:05 +00:00
drh
290ea4053a Add some #if SQLITE_VERSION_NUMBER macros to test/speedtest1.c in order to 
make it compatible with older versions of SQLite so that it can be used for
historical speed comparisons.

FossilOrigin-Name: a9e1627ae714156cf6bd419e41cf9b79fbbe99a9
 2013-12-01 18:10:01 +00:00
drh
a256c1a4b3 Fix typos in the header comment on the sqlite3Atoi64() routine. 
FossilOrigin-Name: c85e0c546ea6c6be46deea5c7a716b5fb553c7b4
 2013-12-01 01:18:29 +00:00
drh
094b7587fc Detect a corrupt UnpackedRecord and return SQLITE_CORRUPT prior to calling 
sqlite3BtreeMovetoUnpacked().

FossilOrigin-Name: 55ec474db8935ef36fae30da5d11f5701c60c088
 2013-11-30 12:49:28 +00:00
drh
b202366509 Change the name of the CORRUPTIBLE macro to CORRUPT_DB. 
FossilOrigin-Name: f865be10e85a4063394a21827db2d854fc25960c
 2013-11-29 15:39:36 +00:00
drh
09fe614372 Add a new sqlite3_test_control() that indicates that database files are 
always well-formed.  Use this during testing to enable assert() statements
that prove conditions that are always true for well-formed databases.

FossilOrigin-Name: 15e4f63d1f3cbcd0aa789fd3e460cd6e4d3338f9
 2013-11-29 15:06:27 +00:00
dan
1b4b334abb Update a few test cases to account for the new error message formats. 
FossilOrigin-Name: 65a5bce3ffb656a43a2e5d2308a4bc67497105de
 2013-11-28 19:28:00 +00:00
dan
0d4a0cdf18 Remove an assert() condition that may not be true if the database file is corrupt. Update a test case in corruptC.test. 
FossilOrigin-Name: 0bcf75516f59e49536f9e5c5cd542058ab61e2fc
 2013-11-28 14:14:31 +00:00
dan
19be738b42 Fix a test case in temptrigger.test so that it works in auto-vacuum mode. 
FossilOrigin-Name: c3b7a0e61f4ad690a56ece1d348a3ef74ab300fe
 2013-11-28 06:17:56 +00:00
drh
2c77be054a Remove unnecessary local variables from sqlite3VdbeExec() in order to 
reduce stack-space requirements of that routine.

FossilOrigin-Name: 81891288d9f281cf2ceb4cd701c0c3231b1bab19
 2013-11-27 21:07:03 +00:00
drh
9338642ca6 Update documentation of sqlite3_column() for clarity. Update evidence marks 
on test cases.

FossilOrigin-Name: ec2d47a1db2349d5c9b4fe465506e0e347f77921
 2013-11-27 19:17:49 +00:00
mistachkin
b87875ac40 Fix spelling typo in speedtest1.exe. 
FossilOrigin-Name: ae90300e8e3221c208343e5e0d5e5f2381f38107
 2013-11-27 18:00:20 +00:00
drh
dcb5fa06e8 Fix some harmless compiler warnings in speedtest1.exe. 
FossilOrigin-Name: c75f561f337a56c14335366ed9990e44bc9fc594
 2013-11-27 14:50:51 +00:00
drh
ce00a83785 Additional test cases for skip-scan. 
FossilOrigin-Name: ce70803f5e1bfb4dc495d3a0c2ddd5ee6c3a10fe
 2013-11-27 13:48:02 +00:00
drh
ac68ced162 Make sure the colWidth array is correctly initialized in the ".explain" 
command of the shell.

FossilOrigin-Name: ceebcdcaf1acf409b77b4cc2903b4570001f098a
 2013-11-27 13:24:18 +00:00
drh
c964c39fb0 Lower the threshold for using skip-scan from 50 to 18, based on experiments 
that show that 18 is the approximate break-even point for a variety of
schemas.

FossilOrigin-Name: 83c0bb9913838d18ba355033afde6e38b4690842
 2013-11-27 04:22:27 +00:00
mistachkin
e1b62513e4 Avoid using the GetVersionEx functions if they are considered deprecated. 
FossilOrigin-Name: afdca29966805ed0d49fd61a161eb3a3919b5963
 2013-11-27 04:00:32 +00:00
mistachkin
0f7e08e0e2 Avoid using the GetVersionEx functions if they are considered deprecated. 
FossilOrigin-Name: 0ea9e4722be10221c99cce5bc48d13c7b34e739f
 2013-11-27 03:01:34 +00:00
drh
21236679d1 Add additional test cases for skip-scan. 
FossilOrigin-Name: 1ae4915d4d08ee5ce526c04d1d0cda1078641793
 2013-11-27 01:23:53 +00:00
drh
ef1bd970ef Add additional test cases and requirements evidence marks for WITHOUT ROWID. 
FossilOrigin-Name: b408d788105efd007e3546f45d5dd15a5dc5688d
 2013-11-27 00:45:49 +00:00
drh
bbbb0e8053 Make sure the update hook is not invoked for WITHOUT ROWID tables, as 
the documentation specifies.  This bug was found while adding requirements
marks, so a few extraneous requirements marks are included in this
check-in.

FossilOrigin-Name: 0978bac6b8aee229d7a0d148546f50d380d06a06
 2013-11-26 23:27:07 +00:00
drh
2c7e9bfc50 Add requirements test cases for determining when an expression is true and 
when it is false.

FossilOrigin-Name: 838654e56304a5788ac384ca506c1938f48af488
 2013-11-26 22:46:54 +00:00
drh
1bcbc6a6d4 Changing the CAST behavior of REAL values actually changed a documented 
requirement.  So we also have to change the requirement evidence text to
match.

FossilOrigin-Name: d84aa44e3919e25f9520c5120a35ec21e837a9ea
 2013-11-26 21:18:45 +00:00
dan
aa1776f093 Reduce the amount of code used to implement OP_SeekGe and similar. 
FossilOrigin-Name: 8b12a15a2a8139d75f56a099f3f6af844da3ac9c
 2013-11-26 18:22:59 +00:00
drh
55fcab39be Fix a possible NULL pointer deference in the wordcount test program. 
FossilOrigin-Name: 6f91dca0de908dc2b15130a6593a61c3147a409f
 2013-11-26 16:51:13 +00:00
drh
0425f18959 Change tclsqlite3.c so that it never invokes ctype macros with signed 
character arguments.

FossilOrigin-Name: c07caabf2396c84b2ccb0e9f98ae6279ce41c59d
 2013-11-26 16:48:04 +00:00
drh
dbb3c98ad1 Do not try to run the atof1.test test script on ARM hardware which lacks 
the "long double" type.

FossilOrigin-Name: fafca560f28f526abdf1474c33af94665a65aaf0
 2013-11-26 16:20:28 +00:00
drh
de1a8b8c69 Change the REAL-to-INTEGER casting behavior so that if the REAL value 
is greater than 9223372036854775807.0 then it is cast to the latest
possible integer, 9223372036854775807.  This is sensible and the way
most platforms work in hardware.  The former behavior was that oversize
REALs would be cast to the smallest possible integer, -9223372036854775808,
which is the way Intel hardware works.

FossilOrigin-Name: 6f53fc7106658d44edf63068f9a8522fa5a7688b
 2013-11-26 15:45:02 +00:00
mistachkin
dad19c3204 Better support for UTF-8 paths on Cygwin. 
FossilOrigin-Name: 9954327c0febc0ece46f62e05976330a1b82b48f
 2013-11-26 00:28:50 +00:00
mistachkin
202ca3e06b Add SQLITE_CONFIG_WIN32_HEAPSIZE option to configure the maximum isolated heap size on Windows. 
FossilOrigin-Name: 914e6c9d88828b66e8385c4a264702471faa34cf
 2013-11-25 23:42:21 +00:00
drh
0b9dadacd8 Change a while-loop into a do-loop in sqlite3VdbeRecordCompare() and add 
an assert() to verify that the do-loop really is appropriate.  This gives
about a 10% performance boost in that routine, or a 0.9% boost overall.

FossilOrigin-Name: 011a6be439eb884c944a3318bf631bed3135f8ec
 2013-11-25 22:24:36 +00:00
mistachkin
af8641bd45 Clarify docs for the SQLITE_CONFIG_WIN32_HEAPSIZE option. 
FossilOrigin-Name: 51e876074af4e34ba01ed122e3bcc042243c9e88
 2013-11-25 21:49:04 +00:00
drh
d16546da78 Remove a NEVER() from a branch that is now reachable during OOM faults. 
FossilOrigin-Name: 18bdcb05c26860643f53a6b9e85f84109a3ebe5a
 2013-11-25 21:41:24 +00:00
drh
fd8c88de9d Optimizations to the sqlite3BtreeMovetoUnpacked() routine in storage engine 
making it about 17.8% faster, which in turn makes SQLite over 1.2% faster
overall.

FossilOrigin-Name: 032e89934f36de10652d3454a0065a337827221a
 2013-11-25 20:50:23 +00:00
drh
9b2fc61d25 Return an SQLITE_CORRUPT error if the content size field of a table record 
extends off the end of a page.

FossilOrigin-Name: b48c4e402125fb8d2208d358f6e9bbc351f3a49d
 2013-11-25 20:14:13 +00:00
drh
ebf10b1fb4 Uses shifts rather than division for arithmetic on the cell indices, since 
those indices are always non-negative.

FossilOrigin-Name: 5bf2a3feeb2c83671bf3edeb20a549239e6873bf
 2013-11-25 17:38:26 +00:00
drh
17566ee243 Optimize the skipping of the payload size field when doing a binary search 
for a rowid.

FossilOrigin-Name: 55e5bfa231dd52a7cf9ec982967da4963867b9e5
 2013-11-25 16:52:59 +00:00
drh
d2022b0118 Arrange for sqlite3BtreeMovetoUnpacked() to always leave the cursor cell 
parse cache invalidated.  This fixes issues with previous check-ins on this
branch and also runs faster.

FossilOrigin-Name: a74675607fe041e37a58a3ec287131de0e5090c3
 2013-11-25 16:23:52 +00:00
drh
bb933ef6e7 More optimizations to sqlite3BtreeMovetoUnpacked(). But there are failures 
in TH3.  Committing this intermediate state to facilitate bisecting.

FossilOrigin-Name: f80497be446f84d2000e454e32d717887a7d0cee
 2013-11-25 15:01:38 +00:00
drh
d793f44723 More improvements to sqlite3BtreeMovetoUnpacked() performance. 
FossilOrigin-Name: 88680698231b7141401f7166e3aff8dbc6008030
 2013-11-25 14:10:15 +00:00
drh
ec3e6b10f4 Performance improvements in sqlite3BtreeMovetoUnpacked(). 
FossilOrigin-Name: d0fb7acea7cbfe6f2d84782a28bb51675a06576f
 2013-11-25 02:38:55 +00:00
mistachkin
5bbb7198d1 Better support for UTF-8 paths on Cygwin. 
FossilOrigin-Name: 484162b6e5a8ad9385fe2eb2a5254d13d7b0bc36
 2013-11-24 23:18:21 +00:00
drh
93307e9d06 Add the --scratch parameter to speedtest1. Improved error messages when 
misconfiguring memory parameters in speedtest1.

FossilOrigin-Name: 8f3c767a30c552548ead104ca125f182ce4849ad
 2013-11-24 01:14:14 +00:00
drh
0c2df17691 The MEMSYS5 algorithm does not have to return the block with the lowest 
address.  Any block of the appropriate size will do.  Use the first block
found on the freelist for the appropriate size for a performance improvement.

FossilOrigin-Name: 12e612e8e7c4a6f83acf0daf5608151fb5ec1575
 2013-11-24 00:46:00 +00:00
drh
9948e95674 A much simpler fix is to simply change MEMSYS5 so that it takes any free 
block of the appropriate size (the first on the list of free blocks) rather
than searching for the one with the smallest address.  This is also faster
than using the min-heap algorithm.  Need to research to verify that the
allocator still satisfies the Robson proof, however.

FossilOrigin-Name: 8191b512122c13d7fa61d8e5487652f13ec172f7
 2013-11-23 22:45:12 +00:00
drh
7b65ad31e1 Add newlines at the end of some error messages in speedtest1. 
FossilOrigin-Name: 6b98f0af7a6522873245d30598d7c79b8aeb9fa0
 2013-11-23 21:29:07 +00:00
drh
e19f8327f8 Report errors from sqlite3_exec() and sqlite3_config() in speedtest1. Fix 
a bug in the main testing logic that was found by these error reports.

FossilOrigin-Name: 659f1a98ae698d062269f8fdac84f733a460f5de
 2013-11-23 11:45:58 +00:00
drh
c7c9f7110b Fix the order of parameters to SQLITE_CONFIG_PAGECACHE in the 
speedtest1.exe program.

FossilOrigin-Name: dbe85ef6d265ed31f4b56dfc0c72bad6adcfd7f0
 2013-11-23 04:32:18 +00:00
mistachkin
1617577e77 Adjust MSVC makefile to avoid using forward slashes in file names. 
FossilOrigin-Name: facf6deaa61ed2e1744711d621d7f50fe2067803
 2013-11-23 04:22:19 +00:00
drh
ad1ca9a792 Add the "speedtest1.exe" test program. 
FossilOrigin-Name: fb6f0c6d77b2318e6e587951514aea91db128c3c
 2013-11-23 04:16:58 +00:00
mistachkin
ac1f10458b Add experimental sqlite3_config option to control the native Win32 heap size. 
FossilOrigin-Name: f09f11e94b5a7c2e51d99c3700d2acd2f3903de9
 2013-11-23 00:27:29 +00:00
mistachkin
20b859530b Fix harmless compiler warning. 
FossilOrigin-Name: f336c18fb72ab90e93640b12ac540d41accc7658
 2013-11-22 21:32:44 +00:00
mistachkin
f201496c6a Minor correction to the batch build tool for MSVC. 
FossilOrigin-Name: 22144c9df260910c4b67960b0e6a6bd5a6758cd7
 2013-11-22 00:49:43 +00:00
drh
0a30592c1e Fix a harmless clang warning in the command-line shell. 
FossilOrigin-Name: 3d47a556f0074e39b880186fb7661b1b8955f742
 2013-11-21 23:37:02 +00:00
drh
cb4f870884 Slight change to the --timer output on wordcount for better display on 
windows:  Avoid showing the full pathname of the executable.

FossilOrigin-Name: b9e047b9e3c2ee4df4a2d921db62f590fa5452d3
 2013-11-21 22:02:52 +00:00
drh
501932ca68 Changes some offset and amount parameters from "int" to "u32" to avoid 
harmless signed/unsigned comparison warnings.

FossilOrigin-Name: 4e8c5d0795cb7c603182bfa70f3855d654f0997e
 2013-11-21 21:59:53 +00:00
drh
7a909855f2 Modify wordcount so that timer information appears on standard error instead 
of standard output.  Rename the run-wordcount.bash script to run-wordcount.sh
and simplify it so that it stands a better chance of running on non-GNU 
systems.

FossilOrigin-Name: 586c11ed7cc6b8e2c7181231e37791c2fbc95272
 2013-11-21 21:40:45 +00:00
drh
d673cddad6 Do not reuse factored constants that might have had their encodings changed. 
FossilOrigin-Name: 487f20366ce77f0c90865d10d5aaedd95af98694
 2013-11-21 21:23:31 +00:00
drh
d9f158e7b2 Fix the code generator to honor turning off constant expression factoring. 
FossilOrigin-Name: 882622662dfadf49c65c7d80b7fd87533d079ce9
 2013-11-21 20:48:42 +00:00
drh
d2b637c2af Add the --timer option to the wordcount test program. 
FossilOrigin-Name: a89fdf87553f01c150729c570796b5078a9b069d
 2013-11-21 19:27:45 +00:00
drh
2b53e00f73 Remove a test from sqlite3VdbeMemFromBtree() which was unnecessary, and 
after the recent OP_Column refactoring, unreachable.

FossilOrigin-Name: 23667f3ba09b7e839d76c42669dc9247a91262c8
 2013-11-21 19:05:04 +00:00
drh
66e810247e Make sure the OP_Next and OP_NextIfOpen opcodes are numbered close together 
for efficiency in switch() statements.  OP_Prev and OP_PrevIfOpen too.

FossilOrigin-Name: d4ccf0f5c656c8f0e1c32d5f7971b131f42c3cbd
 2013-11-21 17:24:18 +00:00
drh
d1a01edac9 When one or more arguments to a function are constants, try to factor 
out just those arguments into initialization code.

FossilOrigin-Name: 50d350abbc9176cd6fc606bc45b8fc3020719500
 2013-11-21 16:08:52 +00:00
drh
10f468f37a Remove the obsolete TK_CONST_FUNC token type. 
FossilOrigin-Name: 9b4217f055e9bced186b4c56a5753bd6da7115b5
 2013-11-21 14:44:38 +00:00
drh
b1fba2868b Add the ability to factor constant functions out of inner loops. But do 
not factor out non-constant functions, like random().

FossilOrigin-Name: 1b0f779e19a5c0d51eddd2d88db50034d77d132c
 2013-11-21 14:33:48 +00:00
drh
e09f43f8b7 Another improvement to OP_Function and an improvement to OP_Move. 
FossilOrigin-Name: 70b056fb6f60cdfbe24e4b77a1770eef064a73c6
 2013-11-21 04:18:31 +00:00
drh
76694c3ae5 A simple change to the OP_Function opcode improves overall performance by 
about 0.5%.

FossilOrigin-Name: b890eefd57fbd189f7df611e82eb1fb4b197e1c3
 2013-11-21 03:43:12 +00:00
drh
f93cd949a0 Performance optimization to the OP_Next and OP_Prev opcodes. 
FossilOrigin-Name: ecaac28a2e78aca148fc614fe54bf2706aed8be2
 2013-11-21 03:12:25 +00:00
drh
3630a408f2 Refactor the OP_Column opcode to make it clearer and easier to maintain. 
Overall, performance tests show about a 1% speed increase with this change.

FossilOrigin-Name: 972881c6d394c199961f01dcbeb4a6e8b5c919a1
 2013-11-21 01:33:45 +00:00
drh
5cc1023e1c Reduce the size of VdbeCursor again, this time without a performance hit. 
FossilOrigin-Name: 933939932c44bccb0958f203a5bd24e683c1cf38
 2013-11-21 01:04:02 +00:00
drh
1fd522ff49 Unpack some fields, adding some space back to the VdbeCursor object, 
in order to help the code to run a little faster.

FossilOrigin-Name: f8d5efcd7b92492b833b6cd1cb6bec006c6a0809
 2013-11-21 00:10:35 +00:00
drh
14da87f8c5 Reduce the size of the VdbeCursor object from 144 to 120 bytes. 
FossilOrigin-Name: 5f9d50688508affd0bc8e4d52e21dacfacdbb5ce
 2013-11-20 21:51:33 +00:00
drh
380d685133 Improved comments on the OP_Column changes. Optimize out loading of overflow 
pages for content with zero length.  Add test cases for the latter.

FossilOrigin-Name: 0e05679db7aa302a49e087a81f85203844b98cbe
 2013-11-20 20:58:00 +00:00
drh
c8606e416a Further performance tweaks to OP_Column. 
FossilOrigin-Name: 0e3f5df695216a27602a53eed5d25231b055adc8
 2013-11-20 19:28:03 +00:00
drh
399af1d2c2 Refactoring the OP_Column opcode for improved performance and 
maintainability.

FossilOrigin-Name: 7c914e3997d2b28164a2fa7eb4398262b6ddb4b2
 2013-11-20 17:25:55 +00:00
drh
79353dbd5f Simplifications to the VdbeCursor object. 
FossilOrigin-Name: 5562cd343d8f69242e06a51a7f1aef7ee7d78eec
 2013-11-20 02:53:58 +00:00
drh
83b301b0af Performance improvement for the OP_MustBeInt opcode in the VDBE. 
FossilOrigin-Name: 96a65388e75fed96e2e73ef65726f6db88cc5ccd
 2013-11-20 00:59:02 +00:00
drh
707f1c560a Fix a harmless MSVC compiler warning. 
FossilOrigin-Name: 6cc023bb29be51847fbbfab95c24fc89993ccdba
 2013-11-19 18:17:20 +00:00
drh
c138dafe88 Minor performance improvement to sqlite3SerialTypeGet(). 
FossilOrigin-Name: 17e8524fc05aa1e6074c19a8ccccc5ab5883103a
 2013-11-19 13:55:34 +00:00
drh
6bc69a2d4b Change Noop-comments in where.c into Module-comments, so that they are 
omitting without SQLITE_ENABLE_MODULE_COMMENTS.

FossilOrigin-Name: 3e577f40183c56e60866d8382b044688a1b77eaf
 2013-11-19 12:33:23 +00:00
drh
5c82f4df9f Avoid seeking on the main data table during the first loop of an UPDATE 
if an index is sufficient to check the WHERE clause.

FossilOrigin-Name: 57158d9daf4d777411fffb1c1d20d89b291d9214
 2013-11-19 02:34:11 +00:00
drh
f37139f65b Fix an requirement mark in a test script so that it matches the 
typo-corrected requirement.  No changes to code.

FossilOrigin-Name: 072412d5e3f92c9c6548f5c86d396d3f024df3f7
 2013-11-19 00:31:25 +00:00
drh
64ff26f741 Add comments identifing where the skip-scan option is decided in the 
query planner, to aid in tuning that decision.  No changes to code.

FossilOrigin-Name: e9df04cec48bb8b4ea26ec9024a22ea42b2338eb
 2013-11-18 19:32:15 +00:00
drh
2365bac1e2 Fix documentation typos. No changes to code. 
FossilOrigin-Name: 7caeb09c52bde4649b02b339f611c8e30f6d1c68
 2013-11-18 18:48:50 +00:00
drh
2bea7cde6e Fix harmless compiler warnings from clang scan-build. 
FossilOrigin-Name: 8d002740bffca2a76d2dfbc1a67293d34f9de9ba
 2013-11-18 11:20:50 +00:00
dan
c4650bb33d Fix a problem with the shell tool EXPLAIN indentation code and VDBE sub-programs. 
FossilOrigin-Name: 9c8d6856253f8da06b2cb5dc6bd89b6952fa03ed
 2013-11-18 08:41:06 +00:00
drh
e73e067187 Enable the ONEPASS optimization for DELETE, for both rowid and WITHOUT 
ROWID tables.

FossilOrigin-Name: 44a07afdd9b3ae2460bc963383295deb0915f899
 2013-11-18 03:11:54 +00:00
drh
83d47afe24 Make sure one-pass DELETE for WITHOUT ROWID tables correctly positions the 
PRIMARY KEY cursor.  Make the same fix for UPDATE.

FossilOrigin-Name: 6bd5750b7d5da221b0689f6df6be5ed0dce61bec
 2013-11-17 02:42:02 +00:00
drh
c51331d16d Fix a couple of minor problems with the new delete logic. 
FossilOrigin-Name: a11243f840d35aaed8ee3b9901c3950bc584a417
 2013-11-16 23:16:31 +00:00
drh
52a82e6966 Fix an OOM-recovery problem in the DELETE code generator. 
FossilOrigin-Name: dc7be158b82ab9156d0fcdf3394f881eac4d23c3
 2013-11-16 23:03:06 +00:00
drh
9612947260 Combine the rowid and WITHOUT ROWID paths for DELETE into a single path. 
FossilOrigin-Name: c4734b881a64a9d21d03a14e901785797577fbd8
 2013-11-16 22:48:52 +00:00
drh
156c7919d9 The one-pass optimization is now working for DELETE on WITHOUT ROWID tables. 
FossilOrigin-Name: e4d220a381388f900a95d1b656a82f14c837f92e
 2013-11-16 20:45:01 +00:00
drh
6a53499a20 Enhance the DELETE logic so that it can make use of WHERE_ONEPASS_DESIRED 
for rowid tables.

FossilOrigin-Name: 8f479a72758ab6fedb171ada612b1963143c32fa
 2013-11-16 20:13:39 +00:00
drh
aedfc5078a Fully constraint the ORDER BY on the top-10 line of the --summary output 
from the wordcount test program.  Add the run-wordcount.bash script for
running wordcount in various configurations.

FossilOrigin-Name: 7edf39eb93a8f9059a788f5fccf41c2be40afd4d
 2013-11-16 15:35:18 +00:00
drh
64bbbf3383 Avoid unnecessary OP_IfNull checks when doing a range query where there 
is a constraint on the lower bound of the range.

FossilOrigin-Name: de08a7e7abbad9b94d0268d096ef4555d31c8b0c
 2013-11-16 14:03:53 +00:00
drh
e6d058cd97 Simplification and performance improvement to the logic that factors 
constant expressions ouf of inner loops.

FossilOrigin-Name: ee9353fdf3c8f19cd3c344ea8fb7c6d13cadd632
 2013-11-16 13:55:34 +00:00
drh
143867516b Fix testcase misc7-16 so that it works with the new UNIQUE constraint error 
message format.

FossilOrigin-Name: c7f2ed9f44be3b66a542ee42c0db63bab8ffd2db
 2013-11-16 12:56:46 +00:00
drh
85f8aa7907 Add ALWAYS and NEVER macros to currently unreachable but important branches in 
sqlite3ExprCompare().

FossilOrigin-Name: cee835fe902e46f283257fb8ec9d9744c7d6dd77
 2013-11-15 20:06:26 +00:00
drh
8e2ea000b5 Merge the operator comment fixes from trunk. 
FossilOrigin-Name: 9f14f55c8ab77e73dbffb7a9c99422bef14cc17a
 2013-11-15 19:00:20 +00:00