ebb6a65d16
Refactor the ExprSetIrreducible() macro into ExprSetVVAProperty(*,EP_NoReduce).
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This is a naming change only. The logic is the same.
FossilOrigin-Name: 695aee46e9bdf15159ab52db7f522b30c91aed0f
2013-09-12 23:42:22 +00:00
a4c3c87e3d
Merge in the Expr.flags expansion to 32-bits. Use an extra bit to help
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optimize the sqlite3ExprSkipCollate() routine.
FossilOrigin-Name: 4c84d1b4c20f18921dd705bf67e8225975b83e86
2013-09-12 17:29:25 +00:00
c5cd124900
Increase the number of bits available in Expr.flags. Other tweaks aimed at
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making expression processing more robust.
FossilOrigin-Name: 579a512538528cf4bb4381ba393c5d9e7310086b
2013-09-12 16:50:49 +00:00
a9cb5be49a
For error log messages generated by the Win32 native allocator, make sure the correct format specifier is used for the value returned by GetLastError().
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FossilOrigin-Name: 75a8a8c1b39725d36db627536d0c69401f8e0815
2013-09-12 02:09:05 +00:00
36ca5359dc
Fix a couple more harmless compiler warnings.
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FossilOrigin-Name: 59708674f66e06c9c31c1a24f2f1c51f0bf4fa3e
2013-09-12 01:47:57 +00:00
4a1f4ff53b
Remove two obsolete fields from the sqlite3 object.
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FossilOrigin-Name: 117fa5fbc9bed1a7b982c8ddc21b7e228905ccb4
2013-09-12 01:33:53 +00:00
61b7060c4f
Fix harmless compiler warning.
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FossilOrigin-Name: 2b510614dc6d878bd49eb428f167014f7f2e2568
2013-09-12 00:54:59 +00:00
7d9e7d8287
Improvements to likelihood processing so that commuting an unindexed term in
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the WHERE clause does not change the query plan.
FossilOrigin-Name: 6e6bded055cdbc902731687c86d92c39a3ba5904
2013-09-11 17:39:09 +00:00
09328c00d6
Additional unlikely() test cases. Logic tweaks to support test coverage.
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FossilOrigin-Name: 5d00cce74a7aefaf30022ae971ab1e0451e0ad6e
2013-09-11 14:34:58 +00:00
aae0f9e462
Change the name of the two-argument unlikely() function to likelihood().
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Add test cases.
FossilOrigin-Name: 29a359b8d7f90e6fa2b28ce2a112284fd3870494
2013-09-11 11:38:58 +00:00
abfa6d52ed
Tweaks to the index selection logic.
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FossilOrigin-Name: 52d52688644f635a50a60ff17b160f3affa8fa6c
2013-09-11 03:53:22 +00:00
36fabb6297
Merge trunk fixes into the unlikely-func branch.
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FossilOrigin-Name: a51d751553b14aa26912c516f60727551deb8e60
2013-09-10 01:53:18 +00:00
1d2b3c1f8a
Deterministically initialize the PRNG used as a tie-breaker in the ANALYZE
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command, so that the analysis is always the same given the same database.
This simplifies testing.
FossilOrigin-Name: 48ed8b565b84c8fa7898c2f9817c01f7e9c9182e
2013-09-10 01:41:25 +00:00
0259bc3da2
Make sure that the transitive constraint optimization does not cause
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WHERE clause terms to be disabled prematurely. We are unable to find a test
case that fails because of this, but it seems prudent to make this
preventative change nevertheless.
FossilOrigin-Name: d6e361d7fb8013d616af91ef2c10038c97d1be5f
2013-09-09 19:37:46 +00:00
add5ce303f
Continuing refinements of the logic to take WHERE clause terms not used for
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indexing into account when computing the number of output rows from each
table.
FossilOrigin-Name: b65dc53415f42d8402d0ec7f4bedf59d7b39b486
2013-09-07 00:29:06 +00:00
fde1e6bc37
Enhance the plan solver to take into account the number of output rows when
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computing the set of paths to retain for the next cycle.
FossilOrigin-Name: 1a46a7242313da96420985fa52e1de3f84533e5b
2013-09-06 17:45:42 +00:00
cca9f3d291
Initial implementation of the unlikely() SQL function used as a hint to
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the query planner.
FossilOrigin-Name: 036fc37a034093a4c6fc190633bd41c2b7230d77
2013-09-06 15:23:29 +00:00
d36e104112
Combine the FuncDef.iPrefEnc and FuncDef.flags fields into a single
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new FuncDef.funcFlags field.
FossilOrigin-Name: 97b10e66e98e84755aa577f8da017bf1aea2056c
2013-09-06 13:10:12 +00:00
0d31dc37ac
Make sure the destination WhereLoop is left in a sane state when an
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OOM fault occurs inside of whereLoopXfer().
FossilOrigin-Name: a99a53b81e29c9514b85318bea028d1667e5f760
2013-09-06 00:40:59 +00:00
8ff2d9561a
When preparing an UPDATE statement, avoid generating VDBE code for those foreign key related actions and constraint checks that may be seen to be unnecessary by considering the subset of table columns potentially modified by the UPDATE.
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FossilOrigin-Name: e940b5de49baa1d6a4cf859fbbc0e0df86ac5dbf
2013-09-05 18:40:29 +00:00
74dade2155
Rearrange the order of conditions in an "if" statement to facilitate testing.
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FossilOrigin-Name: 8462fb43c275a70db59c4339650225deeadeef00
2013-09-04 18:14:53 +00:00
55a1b30875
Fix a bug in the command-line shell for ".mode insert" on UTF16 databases
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with BLOB values.
FossilOrigin-Name: d8fdc7821808e2bfa048144ee3015b745232dc30
2013-09-04 16:08:50 +00:00
2b1a64a120
The sqlite3Stat4ProbeSetValue() routine should always return results using
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the database encoding.
FossilOrigin-Name: eb21663271369c3862bc8fd800f76d568c8579fe
2013-09-04 15:15:10 +00:00
c2cfb51525
Fix out-of-order variable declaration. Fix harmless compiler warning.
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FossilOrigin-Name: 8df95bb0b3f72222cf262174247a467c234f9939
2013-09-04 04:04:08 +00:00
30f07042df
Conditionally exclude code from analyze.c that is not used by STAT3.
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FossilOrigin-Name: a48948a170056dfb87541dd5eb2773094dec6f8a
2013-09-04 02:07:38 +00:00
fbc38de980
Harden the STAT4 logic in where.c against OOM faults.
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FossilOrigin-Name: 91d2cfbc95c34c0040deb69106bb9f895abb94c0
2013-09-03 19:26:22 +00:00
b13af4c5dd
Fix another problem in stat4 sample selection.
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FossilOrigin-Name: d59f580904e6e7e90fc0a692a3dd4eeff5942479
2013-09-03 14:43:12 +00:00
67a5ec7b54
Make sure the omit-noop-left-join optimization is not applied if columns
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of the LEFT JOIN are used in the ORDER BY clause.
Ticket [be84e357c035]
FossilOrigin-Name: 0303d6bc7112e6f810ae1bd75cafc5ffc51f5212
2013-09-03 14:03:47 +00:00
05db3c7743
Simplify branch coverage testing by interchanging the order of two tests
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in the whereLoopInsert() function.
FossilOrigin-Name: f7079b5365dd6cd8324a4fb23605e81476122ed6
2013-09-02 20:22:18 +00:00
b49d1047c6
Further stat4 related tests.
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FossilOrigin-Name: 0a702c4b4c35fdbcb62e3ab88b9e57d7ea0052a8
2013-09-02 18:58:11 +00:00
575ab2f8f6
Fix a problem with using stat4 data to estimate the number of rows scanned by a range constraint on the second or subsequent column of any index where an affinity transformation must be applied to the constraint argument.
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FossilOrigin-Name: c21f58d84859e479a6cc619671a0df48b2f9692e
2013-09-02 07:16:40 +00:00
1df556e6f2
Cleanup of the windows VFS, including added support for Cygwin, fixes
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for compiler warnings under unusual configurations, and improved diagnostic
error messages.
FossilOrigin-Name: c94933f13208f3f7d6d1b117ce6d2821100655a4
2013-08-31 18:36:14 +00:00
1a88b14e5d
Revise the amalgamation tool to allow 'duplicate' include files to be retained manually while still preserving the existing line numbers.
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FossilOrigin-Name: aa48284637b954d63bcf77e19b25e75c7ad1a6d3
2013-08-31 18:06:52 +00:00
4a1aa3851a
Fix a problem causing SQLite not to use stat4 or stat3 data to analyze constraints of the form "column = expr COLLATE collation" (those with an explicit COLLATE on the non-column side of the comparison operator).
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FossilOrigin-Name: 1e86d81d46c9da6aaee0c6938ee40933f35e3d0d
2013-08-31 17:21:26 +00:00
28159a5ee9
Enhancements to the Win32 API definition macros.
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FossilOrigin-Name: b1811baab6e35ecb1ba920a7ed3302997758d309
2013-08-31 17:01:56 +00:00
3fb4b6df07
Fix harmless MSVC compiler warning with MEMDEBUG defined.
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FossilOrigin-Name: b48cfd2dfca70091a52deeeee16619237e1c270b
2013-08-31 05:13:22 +00:00
9f11ef1232
Improve the consistency of the diagnostic messages on Windows.
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FossilOrigin-Name: c6f174a0cb27fe79740fffc7ce51081ec52a5dbd
2013-08-31 02:48:56 +00:00
d95a3d3527
Add support for Cygwin when handling temporary file names. Improve error codes and diagnostic messages for temporary file name handling on Windows. Rename winConvertUtf8Filename to winConvertFromUtf8Filename. Improve placement and comments for forward function declarations.
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FossilOrigin-Name: a411df725153119acb3bcf44fb71deecaa307887
2013-08-30 21:52:38 +00:00
ad4c7aa10f
Fix compiler warnings in analyze.c.
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FossilOrigin-Name: 5bbd2ccb3d2d6286fd667dac2ab658d6b89640a6
2013-08-30 20:19:52 +00:00
79e8445f63
Fix comment typo in analyze.c. No changes to code.
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FossilOrigin-Name: dbc31750440226702fbf88f1bf6140ef403c9be1
2013-08-30 19:59:48 +00:00
e56dd3ad7b
Fix comment typos in the where.c module. No code changes.
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FossilOrigin-Name: 1e0b77cf0edf3d26f76d83aa5466e9ec0e60a710
2013-08-30 17:50:35 +00:00
f46af73720
If the cost of two whereLoop objects is the same in every way except that
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one has fewer expected output rows than the other, then choose the one with
fewer output rows.
FossilOrigin-Name: 79e458ef7acfddbc189163e3e958da529becb130
2013-08-30 17:35:44 +00:00
77a3fdc1b0
Add the SQLITE_MINIMUM_FILE_DESCRIPTOR compile-time option, for control over
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exactly which low-numbered file descriptors SQLite will use.
FossilOrigin-Name: ba5190534330a25722eeb7ea9c42da7a6d146014
2013-08-30 14:24:12 +00:00
5128d009c6
Improvements to the robust_open() logic in the unix VFS so that if an attempt
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is made to open a repository on file descriptors 0, 1, or 2, and blocking
that file descriptor by opening it on /dev/null fails, then the open will
fail.
FossilOrigin-Name: d9c018f8155ab48df8e0e02519bba50588fe49fc
2013-08-30 06:20:23 +00:00
35a0379a05
Change the unix VFS so that it refuses to open a database file using
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a file descriptor less than 3.
FossilOrigin-Name: 66dddda06898abbf97fe0ac6a10ce1527ca8605e
2013-08-29 23:34:53 +00:00
0c9a8e345e
Never leave an open file descriptor pointing into the middle of the
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database file if the file descriptor number is 2 or less.
FossilOrigin-Name: 3426673e4659eb68dbd14a3e41d4620d748432db
2013-08-29 21:26:26 +00:00
8bff07a55f
Restore fix [f15591f802], which was accidentally clobbered by the stat4 merge.
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FossilOrigin-Name: d4b6ad3333cc3bad500c2ebf7a6ea552b6762b69
2013-08-29 14:56:14 +00:00
cd40abb297
Candidate fix for [9f2eb3abac]: Have the whereShortCut() planner ignore indexes with more than four columns.
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FossilOrigin-Name: c1152bdcbb5ac185f743015fff63769effa81b4b
2013-08-29 10:46:05 +00:00
e4f9b9b7c0
Add the win32-longpath VFS allowing windows filenames up to 32K characters in
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length. Remove unused code when -DSQLITE_MAX_MMAP_SIZE=0. Fix some
compiler warnings on windows.
FossilOrigin-Name: 12d0a8859de0a9d823997cfeccc77bd572cb6d13
2013-08-28 18:18:12 +00:00
3259fe7910
Fix a couple comments.
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FossilOrigin-Name: 945cb89ecb92a6c2075b3e58ce1ba3d419b1b6ca
2013-08-28 17:59:38 +00:00
drh