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11806 Commits

Author SHA1 Message Date
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
drh
40864a1401 Fix comments on the OP_Divide and OP_Remainder operators, especially the 
"Synopsis:" comment, so that they agree with the actual implementation.

FossilOrigin-Name: cc17f1f05f15e9c62659a49c0656ff2b667bf701
 2013-11-15 18:58:37 +00:00
drh
c2acc4e466 Changes to make the new constant expression factoring logic more general 
and more testable.

FossilOrigin-Name: d10fb49a92f5f6e93093ae83544e5aec7984361a
 2013-11-15 18:15:19 +00:00
drh
a0d6e3a501 Add test cases for INSERT INTO ... DEFAULT VALUES on tables with numeric 
constants in CHECK constraints.

FossilOrigin-Name: 79ec485b548fcfc508c4d5fa32ed0604e1b0c5d9
 2013-11-15 16:48:23 +00:00
drh
10d1edf0b6 Improvements to the Expr comparison routine to make it more general. 
Improvements to unary-minus code generation so that it can make use of
a global constant register with a zero value.

FossilOrigin-Name: 835be656bb0e83c8108104869166aa9dd850d265
 2013-11-15 15:52:39 +00:00
drh
776f3a2fa9 Add the --query option to the wordcount test program. 
FossilOrigin-Name: 5960d11eba4fc6ca136331279689424d03bd6e76
 2013-11-15 13:12:30 +00:00
drh
33cad2fb46 Simplify the range scan code generate while also avoiding an unnecessary 
OP_Affinity opcode.

FossilOrigin-Name: 372686bfbb1da08b04bddb085e30da5dbc8b30d8
 2013-11-15 12:41:01 +00:00
drh
7c89bed621 Merge EXPLAIN fixes from trunk. 
FossilOrigin-Name: cd579727b107a07140b94f5839d193959d29e6db
 2013-11-15 03:30:07 +00:00
drh
72dbffd726 Fix a typo in the "synopsis" for the OP_Lt opcode that causes an 
incorrect comment to be added to EXPLAIN output.

FossilOrigin-Name: d99a30a25d6102c389f1fb5ec389c137168615e9
 2013-11-15 03:21:43 +00:00
drh
602320e326 Another adjustment to the EXPLAIN indentation logic, in order to deal with 
the sorter loop on a CREATE INDEX statement.

FossilOrigin-Name: cbe85cc2a991d89a6cca391ffa1be0582a684e49
 2013-11-15 03:16:34 +00:00
drh
f30a969b80 Rework the logic that factors constant expressions out of inner loops, making 
it both simpler and faster.

FossilOrigin-Name: 8dc5c76c766828d7c28090bec30ff48227e7b140
 2013-11-15 01:10:18 +00:00
drh
01752bc805 Adjust the command-line shell EXPLAIN indentation logic to handle the 
second loop of an UPDATE that reads out a RowSet.

FossilOrigin-Name: ea141a9b87dbb5fa1402bf7f6e36e89cc9de3cb3
 2013-11-14 23:59:33 +00:00
drh
052e6a8a07 Remove an unused local variable. 
FossilOrigin-Name: 10d59226382adcb8016fc2d927e5a0c0b36f3980
 2013-11-14 19:34:10 +00:00
drh
400fcbad71 Simplification to the progress callback check. On branch removed. 
FossilOrigin-Name: 24ef16548eebcdb9d8b40308f6a16dabf8f8d474
 2013-11-14 00:09:48 +00:00
drh
e6400b9901 Make sure the progress callback is invoked prior to an SQLITE_ROW return if 
it is overdue to be called.

FossilOrigin-Name: 21f59b04f74738d08ebad693646bbaea24dc45ef
 2013-11-13 23:48:46 +00:00
drh
1f57794c92 Merge the skip-scan enhancement into trunk. 
FossilOrigin-Name: b0bb975c0986fe01f1184c1d4888fe397174ad0f
 2013-11-13 20:46:11 +00:00
drh
d24474475e Import the "PRAGMA vdbe_eqp" enhancement and the enhanced EXPLAIN formatting 
the shell from trunk.  Fix a bug in skip-scan and add a test case to prevent
a regression.

FossilOrigin-Name: f668616a29686f3ce532731c534b168e536adbb5
 2013-11-13 19:01:41 +00:00
dan
a98bf365fe In the shell tool, if an "EXPLAIN" command is executed in ".explain on" mode, attempt to automatically indent the bodies of loops in the output VDBE program. 
FossilOrigin-Name: e7d34ec6814ed4606a6d5d7f68c218ae4d25e666
 2013-11-13 18:35:01 +00:00
drh
84e55a80db Add the "PRAGMA vdbe_eqp" command, only available with SQLITE_DEBUG. Simplify 
some of the other debugging logic.

FossilOrigin-Name: 8ce33f4c818e1c785a1c176f6f631b8184e1166b
 2013-11-13 17:58:23 +00:00
drh
e084f40b37 Add VDBE comments to the beginning and end of skip-scan loops. 
FossilOrigin-Name: 0c85d93b52311dee7980d977be6ed0dc70b060c1
 2013-11-13 17:24:38 +00:00
drh
2e5ef4ed77 Improve the way that skip-scan loops are constructued. Add test cases. 
Improved the scoring of skip-scan loops.

FossilOrigin-Name: 5e75ab93881b85801cb4ebf70f2063ff7c51ac19
 2013-11-13 16:58:54 +00:00
drh
c2b23e7a98 Add test cases for skip-scan. Enhance "do_test" so that if the expected result 
is of the form "/*..*/" or "~/*..*/" it treats the expected result as a glob
pattern rather than as a regular expression.  Fix a bug in ANALYZE result
loading associated with WITHOUT ROWID tables.

FossilOrigin-Name: d3e6e9b2a74074c05429d3c341c23525504351ab
 2013-11-13 15:32:15 +00:00
drh
cd8629e4bb Add the ability to use an index even if the left-most columns of the index 
are unconstrainted, provided that the left-most columns have few distinct
values.

FossilOrigin-Name: 27dd5993d1ae5625eb94bf406421eb390d001be9
 2013-11-13 12:27:25 +00:00
drh
c181c26cba Avoid an unnecessary OP_IfNull while doing an indexed search. 
FossilOrigin-Name: 5196000930600d0cd931b87e864507791b9dab08
 2013-11-13 08:55:02 +00:00
mistachkin
015a304f75 Adjust the SQLITE_MALLOCSIZE defines, primarily to make sure _msize gets used with MSVC when appropriate. 
FossilOrigin-Name: 4e7e805e1139b2dc05d85e86e5c8254e5d361bf2
 2013-11-12 21:37:04 +00:00
mistachkin
3aa4be39a9 Fix harmless compiler warning. 
FossilOrigin-Name: ddacd10105c6df2d3a9d707947e72c62e88212eb
 2013-11-12 21:10:02 +00:00
drh
5e6790cb15 Minor enhancements to the auxiliary information added to EXPLAIN output with 
SQLITE_EXPLAIN_ENABLE_COMMENTS.

FossilOrigin-Name: 0d1328e33ca761eddcf8a50e8e83c997861e9047
 2013-11-12 20:18:14 +00:00
drh
e54df42d87 Break out the structure and macro definitions of where.c into a separate 
header file whereInt.h for easier editing and debugging.

FossilOrigin-Name: c44467124623733aac64096d605f16139b733a7f
 2013-11-12 18:37:25 +00:00
dan
85963f5474 When possible, have FTS use 32-bit operations to read varints from the database. 
FossilOrigin-Name: aa7ba302ed13aedde89b5bcbe9119799c0da8a42
 2013-11-12 17:46:44 +00:00
drh
5c7917e4b4 A better (simpler) fix to the count(*) problem addressed in the previous 
check-in.

FossilOrigin-Name: 0f924c6ef6cf2ac5a61aafa8dd8e3309b3970499
 2013-11-12 15:33:40 +00:00
drh
abcc1941db Make sure the count(*) optimization works correctly on WITHOUT ROWID tables. 
FossilOrigin-Name: 91174779786be07d63f3c4a5277602ddc5f0ba26
 2013-11-12 14:55:40 +00:00
dan
e3ab729a9c Update test command [explain_i] to handle the opcodes used by virtual tables (VNext, VFilter etc.). 
FossilOrigin-Name: 1b215ee3219750d3beda8f3628c8673efd517061
 2013-11-12 12:30:09 +00:00
dan
ff4b23ba9e Fix for [4065ac8595]: Do not order CROSS or LEFT joins, even if the right-hand-side is a virtual table. 
FossilOrigin-Name: e2684ece455f53563ae6da7cbb5505d9a4a3076a
 2013-11-12 12:17:16 +00:00
drh
f8396b201c Fix an error message in the spellfix extension so that it conforms to the 
style of error messages in the core.

FossilOrigin-Name: b896ae3d2787c370be3ff5d09da7d631a16d3a2a
 2013-11-12 01:11:56 +00:00
drh
5d2f6c211e Add a comment to the sqlite3_index_info structure indicating that the new 
field is only available in SQLite 3.8.2 or later.

FossilOrigin-Name: 239648f8ccf057eb05841ce65b108da53fdbf0a4
 2013-11-11 23:26:34 +00:00
dan
14ec33f73b Fix typos in compile and run-time tests of the sqlite library version number in rtree.c. 
FossilOrigin-Name: f58d57017199421167dae8ebc67db2f19be45082
 2013-11-11 19:56:35 +00:00
dan
a9f5815b67 Add a way for virtual tables to return the expected number of rows for a scan (not just the overall cost) to SQLite. Have the rtree module make use of this. 
FossilOrigin-Name: 5a3cfd747a85480d215784817c3821d87ecfa2f7
 2013-11-11 19:01:33 +00:00
drh
4308e348d7 Remove unreachable code, replacing it in most cases with assert() or NEVER() 
macros.

FossilOrigin-Name: 924d63b283a3d059838114c95d42c6feaf913529
 2013-11-11 16:55:52 +00:00
mistachkin
d55bccd7cc Fix issue with several memory allocation tests due to KeyInfo allocations now being shared. 
FossilOrigin-Name: 569fedd6bb07bdd3430da8dc65de4a9fdfe204cc
 2013-11-11 03:37:04 +00:00
drh
3da046d8ba Convert several ALWAYS() macros in vdbe.c into assert() statements. 
FossilOrigin-Name: acc40ff6b47595432ebc1b3ec71ac50384bec323
 2013-11-11 03:24:11 +00:00
mistachkin
9939118083 Fix several harmless compiler warnings. 
FossilOrigin-Name: e6ff492f0d475c395b82e2b3b294155674d4c6d1
 2013-11-11 02:46:32 +00:00
mistachkin
055f16543b Modify a HeapValidate assert in the Win32 native allocator. 
FossilOrigin-Name: aaed7d1d3ba0aef9f99fb157d3704b9f279aef71
 2013-11-11 01:42:10 +00:00
drh
af1c01c107 Fix a problem in OP_IdxDelete as used by REPLACE conflict resolution that 
comes up due to recent enhancements that reduce the work required for
UNIQUE NOT NULL indices.

FossilOrigin-Name: 61d7d4753f36932293c0eb1ca893b17d18355ad3
 2013-11-11 00:43:21 +00:00
mistachkin
080464948f Fix typo in comment and remove superfluous blank line. No changes to code. 
FossilOrigin-Name: 023233f16ec2e6f582a7491643036ba5cad9379c
 2013-11-10 00:03:11 +00:00
mistachkin
9858bf2fb1 Fix compilation errors with some compilers that do not reference recent Windows SDK header files. 
FossilOrigin-Name: a5805976f0e06ece2eeebd825f383a1ee88121fc
 2013-11-09 23:55:18 +00:00
mistachkin
c6efe12d0d Fix memory type mismatch when compiled with MEMDEBUG. 
FossilOrigin-Name: 2c32bd6d4d5da2055633e8fb43ee184f729d8b91
 2013-11-09 23:44:02 +00:00
drh
660760f8e6 Add the sqlite3_win32_compact_heap() function for cleaning up memory 
allocations on Win32 system.  Also cleanup the winGetTempname() function.
Changes to the Win32 VFS only.

FossilOrigin-Name: d06d9fdb6e6ac369035c825d9c30970115b3ba71
 2013-11-09 22:08:10 +00:00
drh
6c41b61f62 Updates to documentation on sqlite3_last_insert_rowid(). No changes to code. 
FossilOrigin-Name: a4c5804efc63ff993e93f8a7b6acb6bb0a19dd3e
 2013-11-09 21:19:12 +00:00
mistachkin
dc7b05558a Use the UNICODE_STRING_MAX_CHARS constant from WinNT.h. 
FossilOrigin-Name: 3fefe4dd43539ec7e525ef58f0bfeffd31288ebd
 2013-11-09 21:11:36 +00:00
mistachkin
fd4b90be1a Furhter cleanup of the winGetTempname function. 
FossilOrigin-Name: 674de36bcaafc1130b7603e69616c71fc8cd7de7
 2013-11-09 21:10:47 +00:00
drh
eb091cdfc4 Updates to requirements marks. No changes to code. 
FossilOrigin-Name: 8a0366285b94dc43d932736e7b1eedb71e241857
 2013-11-09 19:47:15 +00:00
drh
d2fe3358cf Throw an error if AUTOINCREMENT appears in a WITHOUT ROWID table. 
Updates to API documentation to discuss WITHOUT ROWID.

FossilOrigin-Name: b1abb2b078d1cb9ec5fbd7f98221914b93632e9f
 2013-11-09 18:15:35 +00:00
mistachkin
7f9d179884 Add more assert() statements and fix compilation issues when the Win32 native heap is not enabled. 
FossilOrigin-Name: fbf8c3828327d19bbce0d7f6735e7577abfd54b3
 2013-11-08 20:10:57 +00:00
mistachkin
5134a8178d Disable use of HeapCompact on Windows CE as it is not available on all versions. 
FossilOrigin-Name: e9694b877178572665048d1015ca033c469160e7
 2013-11-08 19:51:12 +00:00
mistachkin
2eb0966ef2 Adjust the winMemInit return code handling used when resetting the Win32 native heap. 
FossilOrigin-Name: 37853665e75fc92b4d15e6db0b3346722527e799
 2013-11-08 18:52:45 +00:00
mistachkin
17bc3ff956 Minor corrections to logging for sqlite3_win32_compact_heap(). 
FossilOrigin-Name: 71347d021bea90ad7e4cc0d3e54940ce29b9ea69
 2013-11-08 18:37:02 +00:00
mistachkin
e8f91053f6 Enhancements to the Win32 native heap integration. 
FossilOrigin-Name: c54dc9672b686c8e323eac0c33cd90ea89d36364
 2013-11-08 18:13:48 +00:00
drh
511717c645 Fix harmless compiler warnings. 
FossilOrigin-Name: 0077c0772a884b54d81fa3733aac6f0c364ef1a8
 2013-11-08 17:13:23 +00:00
drh
95a5bcbb00 Merge the Cygwin directory separator fix. Also fix a C++-ism in the 
multiplexor code so that it will compile on MSVC.

FossilOrigin-Name: 830629d31d171155d90ff87ae8e70094d17bb2d3
 2013-11-08 17:03:50 +00:00
drh
392ee21d1a Performance improvement: Avoid unnecessary seeks on REPLACE INTO for a 
WITHOUT ROWID table.

FossilOrigin-Name: fd11afa5f5c853dcac2290444b581a3fe1d4332d
 2013-11-08 16:54:56 +00:00
drh
fc8d4f96b4 Performance improvements: 
Avoid unnecessary seeks when doing a single-row UPDATE on a WITHOUT ROWID
table.

FossilOrigin-Name: 6f187a0fb1b09ebc4732c4afbf3c813f82e069f1
 2013-11-08 15:19:46 +00:00
drh
81897bb14e Merge change to drop the mutex on the multiplexor before entering the xRead 
VFS call, in order to enhance parallelizability.

FossilOrigin-Name: 3c566e41e4c9c66960cc5a3ddee8556835237999
 2013-11-08 12:14:50 +00:00
drh
ce60aa469a Optimize out a NotExists/NotFound opcode that occurs in UPDATE processing 
after constraint checks if there is no possiblity that the constraint checking
code might have moved the cursor.

FossilOrigin-Name: 74e3ee2ee6ea89af2c12dd0bce248467fd0f1310
 2013-11-08 01:09:15 +00:00
drh
24f1985a25 On the --summary output of wordcount, add the a PRAGMA integrity_check and 
a 64-bit checksum of the entire table.

FossilOrigin-Name: 1d1d13b89056903543c909b094030d205473fa82
 2013-11-08 00:16:58 +00:00
drh
ac873261c4 Add many new options to the wordcount test program: --delete, --pagesize, 
--cachesize, --commit, --nosync, and --journal.

FossilOrigin-Name: e938112d316ca31460f247cc104ca3ff1d60b4da
 2013-11-07 23:23:27 +00:00