de1a8b8c69
Change the REAL-to-INTEGER casting behavior so that if the REAL value
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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
2e72791781
Fix comment.
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FossilOrigin-Name: 8364af392da2946acd84633b45684e6fba5c39ed
2013-11-26 01:13:18 +00:00
f74b9e0965
Further work on Windows header file reform.
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FossilOrigin-Name: 540f5525160b516de282136ca77f909115a51630
2013-11-26 01:00:31 +00:00
9598ae2c11
Merge updates from trunk.
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FossilOrigin-Name: c5ab4378756965b0c2ab218e5ec59c40898b89ea
2013-11-26 00:33:25 +00:00
dad19c3204
Better support for UTF-8 paths on Cygwin.
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FossilOrigin-Name: 9954327c0febc0ece46f62e05976330a1b82b48f
2013-11-26 00:28:50 +00:00
202ca3e06b
Add SQLITE_CONFIG_WIN32_HEAPSIZE option to configure the maximum isolated heap size on Windows.
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FossilOrigin-Name: 914e6c9d88828b66e8385c4a264702471faa34cf
2013-11-25 23:42:21 +00:00
0b9dadacd8
Change a while-loop into a do-loop in sqlite3VdbeRecordCompare() and add
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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
af8641bd45
Clarify docs for the SQLITE_CONFIG_WIN32_HEAPSIZE option.
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FossilOrigin-Name: 51e876074af4e34ba01ed122e3bcc042243c9e88
2013-11-25 21:49:04 +00:00
d16546da78
Remove a NEVER() from a branch that is now reachable during OOM faults.
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FossilOrigin-Name: 18bdcb05c26860643f53a6b9e85f84109a3ebe5a
2013-11-25 21:41:24 +00:00
9b2fc61d25
Return an SQLITE_CORRUPT error if the content size field of a table record
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extends off the end of a page.
FossilOrigin-Name: b48c4e402125fb8d2208d358f6e9bbc351f3a49d
2013-11-25 20:14:13 +00:00
ebf10b1fb4
Uses shifts rather than division for arithmetic on the cell indices, since
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those indices are always non-negative.
FossilOrigin-Name: 5bf2a3feeb2c83671bf3edeb20a549239e6873bf
2013-11-25 17:38:26 +00:00
17566ee243
Optimize the skipping of the payload size field when doing a binary search
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for a rowid.
FossilOrigin-Name: 55e5bfa231dd52a7cf9ec982967da4963867b9e5
2013-11-25 16:52:59 +00:00
d2022b0118
Arrange for sqlite3BtreeMovetoUnpacked() to always leave the cursor cell
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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
bb933ef6e7
More optimizations to sqlite3BtreeMovetoUnpacked(). But there are failures
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in TH3. Committing this intermediate state to facilitate bisecting.
FossilOrigin-Name: f80497be446f84d2000e454e32d717887a7d0cee
2013-11-25 15:01:38 +00:00
d793f44723
More improvements to sqlite3BtreeMovetoUnpacked() performance.
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FossilOrigin-Name: 88680698231b7141401f7166e3aff8dbc6008030
2013-11-25 14:10:15 +00:00
f3a4c7c2c7
Correct line-endings in the new header file.
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FossilOrigin-Name: 94219b9f1ff59ea408c7ded167ee28b00c0f38c1
2013-11-25 09:37:24 +00:00
8bc5262915
Initial work on isolating usage of the Windows header file.
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FossilOrigin-Name: 0d42c6b830ee50f45539d73e3948ed3bc50a11d1
2013-11-25 09:36:07 +00:00
ec3e6b10f4
Performance improvements in sqlite3BtreeMovetoUnpacked().
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FossilOrigin-Name: d0fb7acea7cbfe6f2d84782a28bb51675a06576f
2013-11-25 02:38:55 +00:00
5bbb7198d1
Better support for UTF-8 paths on Cygwin.
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FossilOrigin-Name: 484162b6e5a8ad9385fe2eb2a5254d13d7b0bc36
2013-11-24 23:18:21 +00:00
0c2df17691
The MEMSYS5 algorithm does not have to return the block with the lowest
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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
9948e95674
A much simpler fix is to simply change MEMSYS5 so that it takes any free
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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
ac1f10458b
Add experimental sqlite3_config option to control the native Win32 heap size.
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FossilOrigin-Name: f09f11e94b5a7c2e51d99c3700d2acd2f3903de9
2013-11-23 00:27:29 +00:00
20b859530b
Fix harmless compiler warning.
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FossilOrigin-Name: f336c18fb72ab90e93640b12ac540d41accc7658
2013-11-22 21:32:44 +00:00
0a30592c1e
Fix a harmless clang warning in the command-line shell.
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FossilOrigin-Name: 3d47a556f0074e39b880186fb7661b1b8955f742
2013-11-21 23:37:02 +00:00
501932ca68
Changes some offset and amount parameters from "int" to "u32" to avoid
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harmless signed/unsigned comparison warnings.
FossilOrigin-Name: 4e8c5d0795cb7c603182bfa70f3855d654f0997e
2013-11-21 21:59:53 +00:00
d673cddad6
Do not reuse factored constants that might have had their encodings changed.
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FossilOrigin-Name: 487f20366ce77f0c90865d10d5aaedd95af98694
2013-11-21 21:23:31 +00:00
d9f158e7b2
Fix the code generator to honor turning off constant expression factoring.
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FossilOrigin-Name: 882622662dfadf49c65c7d80b7fd87533d079ce9
2013-11-21 20:48:42 +00:00
2b53e00f73
Remove a test from sqlite3VdbeMemFromBtree() which was unnecessary, and
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after the recent OP_Column refactoring, unreachable.
FossilOrigin-Name: 23667f3ba09b7e839d76c42669dc9247a91262c8
2013-11-21 19:05:04 +00:00
d1a01edac9
When one or more arguments to a function are constants, try to factor
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out just those arguments into initialization code.
FossilOrigin-Name: 50d350abbc9176cd6fc606bc45b8fc3020719500
2013-11-21 16:08:52 +00:00
10f468f37a
Remove the obsolete TK_CONST_FUNC token type.
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FossilOrigin-Name: 9b4217f055e9bced186b4c56a5753bd6da7115b5
2013-11-21 14:44:38 +00:00
b1fba2868b
Add the ability to factor constant functions out of inner loops. But do
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not factor out non-constant functions, like random().
FossilOrigin-Name: 1b0f779e19a5c0d51eddd2d88db50034d77d132c
2013-11-21 14:33:48 +00:00
e09f43f8b7
Another improvement to OP_Function and an improvement to OP_Move.
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FossilOrigin-Name: 70b056fb6f60cdfbe24e4b77a1770eef064a73c6
2013-11-21 04:18:31 +00:00
76694c3ae5
A simple change to the OP_Function opcode improves overall performance by
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about 0.5%.
FossilOrigin-Name: b890eefd57fbd189f7df611e82eb1fb4b197e1c3
2013-11-21 03:43:12 +00:00
f93cd949a0
Performance optimization to the OP_Next and OP_Prev opcodes.
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FossilOrigin-Name: ecaac28a2e78aca148fc614fe54bf2706aed8be2
2013-11-21 03:12:25 +00:00
5cc1023e1c
Reduce the size of VdbeCursor again, this time without a performance hit.
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FossilOrigin-Name: 933939932c44bccb0958f203a5bd24e683c1cf38
2013-11-21 01:04:02 +00:00
1fd522ff49
Unpack some fields, adding some space back to the VdbeCursor object,
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in order to help the code to run a little faster.
FossilOrigin-Name: f8d5efcd7b92492b833b6cd1cb6bec006c6a0809
2013-11-21 00:10:35 +00:00
14da87f8c5
Reduce the size of the VdbeCursor object from 144 to 120 bytes.
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FossilOrigin-Name: 5f9d50688508affd0bc8e4d52e21dacfacdbb5ce
2013-11-20 21:51:33 +00:00
380d685133
Improved comments on the OP_Column changes. Optimize out loading of overflow
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pages for content with zero length. Add test cases for the latter.
FossilOrigin-Name: 0e05679db7aa302a49e087a81f85203844b98cbe
2013-11-20 20:58:00 +00:00
c8606e416a
Further performance tweaks to OP_Column.
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FossilOrigin-Name: 0e3f5df695216a27602a53eed5d25231b055adc8
2013-11-20 19:28:03 +00:00
399af1d2c2
Refactoring the OP_Column opcode for improved performance and
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maintainability.
FossilOrigin-Name: 7c914e3997d2b28164a2fa7eb4398262b6ddb4b2
2013-11-20 17:25:55 +00:00
79353dbd5f
Simplifications to the VdbeCursor object.
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FossilOrigin-Name: 5562cd343d8f69242e06a51a7f1aef7ee7d78eec
2013-11-20 02:53:58 +00:00
83b301b0af
Performance improvement for the OP_MustBeInt opcode in the VDBE.
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FossilOrigin-Name: 96a65388e75fed96e2e73ef65726f6db88cc5ccd
2013-11-20 00:59:02 +00:00
c138dafe88
Minor performance improvement to sqlite3SerialTypeGet().
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FossilOrigin-Name: 17e8524fc05aa1e6074c19a8ccccc5ab5883103a
2013-11-19 13:55:34 +00:00
6bc69a2d4b
Change Noop-comments in where.c into Module-comments, so that they are
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omitting without SQLITE_ENABLE_MODULE_COMMENTS.
FossilOrigin-Name: 3e577f40183c56e60866d8382b044688a1b77eaf
2013-11-19 12:33:23 +00:00
5c82f4df9f
Avoid seeking on the main data table during the first loop of an UPDATE
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if an index is sufficient to check the WHERE clause.
FossilOrigin-Name: 57158d9daf4d777411fffb1c1d20d89b291d9214
2013-11-19 02:34:11 +00:00
64ff26f741
Add comments identifing where the skip-scan option is decided in the
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query planner, to aid in tuning that decision. No changes to code.
FossilOrigin-Name: e9df04cec48bb8b4ea26ec9024a22ea42b2338eb
2013-11-18 19:32:15 +00:00
2365bac1e2
Fix documentation typos. No changes to code.
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FossilOrigin-Name: 7caeb09c52bde4649b02b339f611c8e30f6d1c68
2013-11-18 18:48:50 +00:00
2bea7cde6e
Fix harmless compiler warnings from clang scan-build.
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FossilOrigin-Name: 8d002740bffca2a76d2dfbc1a67293d34f9de9ba
2013-11-18 11:20:50 +00:00
c4650bb33d
Fix a problem with the shell tool EXPLAIN indentation code and VDBE sub-programs.
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FossilOrigin-Name: 9c8d6856253f8da06b2cb5dc6bd89b6952fa03ed
2013-11-18 08:41:06 +00:00
e73e067187
Enable the ONEPASS optimization for DELETE, for both rowid and WITHOUT
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ROWID tables.
FossilOrigin-Name: 44a07afdd9b3ae2460bc963383295deb0915f899
2013-11-18 03:11:54 +00:00
drh