1153c7b25d
Size KeyInfo objects so that IdxInserts always compare the correct number of
...
fields.
FossilOrigin-Name: 302a81390f039fc23eeb8510e95b9d9fa0b41edd
2013-11-01 22:02:56 +00:00
bbbdc83b52
The Index object now has nKeyCol and nColumn. nColumn is the total number
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of columns and nKeyCol is the number of key columns. Currently these always
differ by one. Refactor aiColumn[] to be of type i16 instead of int.
FossilOrigin-Name: a106ce86cd4afd1f81603826de77df1fb25e9ab5
2013-10-22 18:01:40 +00:00
a7f4bf3f88
Make subroutines sampleCopy() and valueFromExpr() have file scope.
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FossilOrigin-Name: 1660efbe46439734c7dc1674994ceb86a9b41d1a
2013-10-14 13:21:00 +00:00
4f99189051
Fix various harmless compiler warnings. Change the "warnings.sh" script to
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work with STAT4 instead of STAT3.
FossilOrigin-Name: 7df06684ab36bfdad9e9aca6940b7a665c2a0cb5
2013-10-11 15:05:05 +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
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
1435a9a126
Adjust ANALYZE for improved test coverage. Use the SQLITE_ENABLE_STAT3_OR_STAT4
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macro (created in sqliteInt.h) to conditionally include code, instead of
a boolean specifying both macros separately.
FossilOrigin-Name: 67a9a392edd62ef5a5a1ad3010b20a39b285793d
2013-08-27 23:15:44 +00:00
2f53b90665
Merge the STAT4 capability into trunk.
...
FossilOrigin-Name: a32af0abe5fa6d570604fa3534e8230d5b6042fc
2013-08-26 23:18:06 +00:00
e7ecdfabd2
Update sqlite3MemCompare() to try common cases first, for a modest speed
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improvement.
FossilOrigin-Name: b25bac79191975149d88fe34618c74354de62c5e
2013-08-21 19:13:53 +00:00
202ca9075f
In sqlite3Stat4ProbeSetValue() change a local variable name iVar to iBindVar
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to avoid confusion with iVal, and fix a place where the name was actually
confused.
FossilOrigin-Name: 91733bc4856034c10bc2ba0acdae1970b05d62b9
2013-08-16 17:18:02 +00:00
0e1f0029c0
Fix valueFromExpr() so that it returns SQLITE_NOMEM following an OOM when
...
changing text encodings. Also fix some asserts to accommodate OOM errors.
FossilOrigin-Name: dc1ccd09c443cebc4731dbe1a0dea84a9ccf6a9b
2013-08-16 14:49:00 +00:00
af2583c83c
Fix a crash that can occur following an OOM fault.
...
FossilOrigin-Name: 9f80b2687012ab7c4d6d654fe19f40878bd78bd8
2013-08-15 18:43:21 +00:00
8ad169abb4
If ENABLE_STAT3 is defined but ENABLE_STAT4 is not, have ANALYZE create and populate the sqlite_stat3 table instead of sqlite_stat4.
...
FossilOrigin-Name: cca8bf4372ab7a0258aa5c9397818415c6cf0abf
2013-08-12 20:14:04 +00:00
dd6e1f193e
Add the rowid field to the end of sample records stored in the sqlite_stat4 table.
...
FossilOrigin-Name: 3a5e8ab7ddbe1d943b35ef329fe4e5a1bfdb0d9d
2013-08-10 19:08:30 +00:00
ad45ed7414
Fix a segfault in "ALTER TABLE t1 ADD COLUMN b DEFAULT (-+1)". Also an assert() failure that could occur if SQLITE_ENABLE_STAT4 were not defined.
...
FossilOrigin-Name: 9fec3e38287067d60874530300fbeb602958c951
2013-08-08 12:21:32 +00:00
87cd93215e
When estimating the number of rows scanned using data from the sqlite_stat4 table, avoid allocating UnpackedRecord and KeyInfo structures until they are definitely required.
...
FossilOrigin-Name: 353950a5269fa439cc3e57b62e16558a84ea2557
2013-08-07 15:52:41 +00:00
7a4192358a
When possible, use the multi-column samples in sqlite_stat4 to estimate the number of index rows scanned by a query plan.
...
FossilOrigin-Name: 2973f5ca736c4a6f13c653d54b6a29d7cae8d0ed
2013-08-06 20:01:43 +00:00
f52bb8d385
Begin adding experimental sqlite_stat4 table. This commit is buggy.
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FossilOrigin-Name: 2beea303a1d609cd2ff252412c50b966b9e5e8f1
2013-08-03 20:24:58 +00:00
ef593f293e
Fix two compilation issues, one warning and one error, that occur only when SQLITE_OMIT_UTF16 is defined.
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FossilOrigin-Name: 10ace06be7fbe9a76a201c418b2af453c7a69043
2013-03-07 06:42:53 +00:00
2b9ee77fd6
Fix a bug in the EXPLAIN code for listing trigger programs that was causing an out-of-bounds read.
...
FossilOrigin-Name: c9342ca58105499a5eb61c3e6d016559b6072c95
2012-03-31 09:59:44 +00:00
bb8c1b5e63
Fix a boundary case for the integer affinity routine for non-x86 processors.
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FossilOrigin-Name: bea05ddddf5089bac9b1aa9fe1d2cd24b069ad44
2012-02-10 01:25:13 +00:00
aa538a581a
Make the use and function of SQLITE_DYNAMIC clearer. Add assert() statement
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to help ensure that SQLITE_DYNAMIC is not misused.
FossilOrigin-Name: ab80f2c3b2f1eea6e35989d3e9b6137b51091754
2012-01-19 16:57:16 +00:00
45d29309a7
Fix typos in commands. Combine the ExpandBlob and expandBlob macros into one.
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FossilOrigin-Name: fc9179e154751b51ddef429600d30a89d4a098bd
2012-01-08 22:18:33 +00:00
e4c88c0c38
Fix typos and comments and make minor changes to a few function names,
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as suggested by readership.
FossilOrigin-Name: e9d05cbb7676cbda83f1b3b71447404d7edde898
2012-01-04 12:57:45 +00:00
2faf5f5e9e
Update the text of requirements associated with sqlite3_pcache_methods2.
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Update requirements marks embedded in code. All of the above are comment
changes only; there are no changes to code in this check-in.
FossilOrigin-Name: f945c41a72519d6bcfb478730ba0254bb24e5331
2011-12-30 15:17:47 +00:00
5a9f90b574
Merge the latest trunk changes into the stat3-trunk branch.
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FossilOrigin-Name: 11ca4ed8bf850dae1a24b7182f70039f32bd8dd1
2011-09-13 19:09:28 +00:00
2d36eb43a4
About a 1% overall performance improvement by using a macro to avoid
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no-op calls to sqlite3MemReleaseExternal().
FossilOrigin-Name: ff71d20a9ed129bd1785a3f7a777ce62098735b7
2011-08-29 02:49:41 +00:00
faacf17cc1
Begin a branch that experimentally replaces sqlite_stat2 with a new table
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called sqlite_stat3 that will hopefully facilitate better query
planning decisions.
FossilOrigin-Name: 52e1d7e8ddd4bb5ef3a9d00fd2d719a8a784f807
2011-08-12 01:51:45 +00:00
d50ffc416f
Fix additional cases of possible signed integer overflow, especially with
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regard to negation.
FossilOrigin-Name: 2d5800bd8cfc7d7f5578a71b1aeaa74b2ec4b372
2011-03-08 02:38:28 +00:00
158b9cb965
Fix all known instances of signed-integer overflow. Within SQL expressions,
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integer overflow now forces coercion to floating point. The shift operators
work with any integer right-hand operand with negative values reversing
the direction of the shift.
FossilOrigin-Name: abf21394124a0af46f072793718964cee2ce55d0
2011-03-05 20:59:46 +00:00
b1aa0ab6da
Fix the sqlite3ValueFromExpr() routine so that it returns SQLITE_NOMEM
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on an OOM when trying to extract a NULL.
FossilOrigin-Name: 1061e94fa983a441b289753b873559163ab849e6
2011-02-18 17:23:23 +00:00
9b3eb0adc1
Add the ability to use indices when a range contraint is bounded on
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the lower end by NULL.
FossilOrigin-Name: f73a167b434fadcbbd15e3891c4b7f4f87f6363c
2011-01-21 14:37:04 +00:00
271065704c
Avoid recursive calls to sqlite3VdbeMemRelease() when deleting VM frames used by trigger programs.
...
FossilOrigin-Name: 119ffe955eb1e8016cb8131a63bd17557f395f3f
2010-12-01 08:04:47 +00:00
e062d7b847
Avoid all memory allocation (and hence the possiblitity of OOM failure)
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in sqlite3_value_double() and sqlite3_column_double().
FossilOrigin-Name: 4afdf9705a7c2b67aea31c5d51b9c295867d62d1
2010-10-05 12:05:32 +00:00
5f1d6b616e
Changes to remove sqlite3FitsIn64Bits().
...
FossilOrigin-Name: 43fef1cab6315f837782ea601d5a2aeb9843ab3c
2010-09-30 16:51:25 +00:00
9351862b6d
Fix the handling of default values for ALTER TABLE ADD COLUMN columns so
...
that is able to deal with negative numbers, including large negative numbers.
Ticket [8454a207b9fd2243c4]
FossilOrigin-Name: ce6cc16e3a151a0c67855abde1411422dfcc8828
2010-09-30 14:48:06 +00:00
9339da1f22
Rework the text to numeric conversion routines so that they work with either
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UTF8 or UTF16 and do not require a NULL terminator. This allowed text to
numeric conversion without reallocating the string.
FossilOrigin-Name: 14eed3a0e0a45c6f2904a3a134aa27c159916f7b
2010-09-30 00:50:49 +00:00
ebc16717fa
Continuing work toward detecting and fixing shallow-copy misuse.
...
FossilOrigin-Name: d0342f4bb9d25dd1dba3957778faa993fb9cc81c
2010-09-28 00:25:58 +00:00
2b4ded993b
Add assert() statements that fail when a shallow copy is accessed after the
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original has been modified. These assert() statements should detect the kinds
of subtle SCopy bugs such as caused the fault
in ticket [b351d95f9cd5ef17e9d9dbae18f].
FossilOrigin-Name: 8b8e1732e8410efd5f8e308c43abe521584e87a0
2010-09-27 21:09:31 +00:00
38c67c3683
Improved documentation of SQLITE_THREADSAFE and sqlite3_column_text() and
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evidence marks for each.
FossilOrigin-Name: 0d7a53894866e536616e78473d253a9e9c29b1bc
2010-09-08 02:30:27 +00:00
ee9ff672da
Documentation enhancements for sqlite3_db_status(). Evidence marks on
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the SQL function call intrface.
FossilOrigin-Name: f06c7b1973d64a6a1a1db2b44df2a4eb0ece0077
2010-09-03 18:50:48 +00:00
a3388cc5b0
Fix typos in comments. No code or logic changes.
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FossilOrigin-Name: 15c294ca051ed8b5078e7ac9a969b0f9358d9184
2010-07-30 16:54:25 +00:00
4a466d3ef3
Fix up a branch in sqlite3ValueFromExpr() so that we can achieve full
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branch test coverage regardless of whether or not SQLITE_ENABLE_STAT2 is
used.
FossilOrigin-Name: af471ed79f539ff495f6d4cb3b69188c8af7ae3d
2010-06-25 14:17:58 +00:00
5fea90762a
Change a condition in sqlite3VdbeMemShallowCopy() to avoid accessing an unitialized variable (doing so was not dangerous, but caused a valgrind error).
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FossilOrigin-Name: 4793c381c6ff4e4d25433298be30028721a9cb67
2010-03-05 18:46:12 +00:00
4b5db5ac9c
Redesign the string to numeric value caster so that it is more likely to
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work on unusual floating point hardware.
FossilOrigin-Name: 8bb1104c6f02c88eb09ed345890be71dee099485
2010-01-21 01:53:07 +00:00
52d14521fa
Make the doubleToInt64() routine a pass-through when using OMIT_FLOATING_POINT.
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FossilOrigin-Name: 417167182efaa1da74008952137de3e00c23494e
2010-01-13 15:15:40 +00:00
7ec5ea942e
Make the sqlite3_result_double() interface work the same as
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sqlite3_result_int64() when SQLITE_OMIT_FLOATING_POINT is defined.
FossilOrigin-Name: 61df5986600b6c9e6d5c42efc0067a27fe54251f
2010-01-13 00:04:13 +00:00
0abaefefd6
Remove an obsolete (and incorrect) comment from sqlite3MemCompare().
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No changes to code.
FossilOrigin-Name: c15b70b3aefc399dae1df5bb721530f0e2b7887a
2009-11-11 23:48:22 +00:00
c81c11f62c
Remove the obsolete "$Id:$" RCS identifier strings from the source code.
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FossilOrigin-Name: f6c045f649036958078cb15cd9d5453680c82b0c
2009-11-10 01:30:52 +00:00
481aa74e21
Recover an ophaned branch that resulted from some ill-advised "shunning".
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This check-in should be identical to [bd443f39a9] except that it should
be on the trunk.
FossilOrigin-Name: 38eaf1ab6e05161e6dc7cd69e942aeca16548c45
2009-11-05 18:46:02 +00:00
drh