00eee07911
Fix the PRAGMA case_sensitive_like command so that the LIKE function continues
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to be innocuous after the PRAGMA.
[forum:/forumpost/925dc9f67804c540|Forum post 925dc9f67804c540].
FossilOrigin-Name: 84c268c34cba7207a90dad2a8e972ce90c85304e91f4933c76963822ad1ae48b
2023-08-15 11:58:22 +00:00
61a5b6e3bc
Fix a harmless use-of-initialized-value warning from OSSFuzz that results
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from recent large string optmizations.
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2023-07-22 15:21:41 +00:00
37fd50df1f
Two minor improvements to sum(), one of which was inspired by
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[forum:/forumpost/af5be98dbc|forum post af5be98dbc].
FossilOrigin-Name: a0d3e7571aded8d1e03908059d2d5aa5d62ec49bff099cb38f6f35df5e4b18b5
2023-07-19 09:52:10 +00:00
4c40b7b819
Always use the "LL" suffix on 64-bit integer literals.
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FossilOrigin-Name: 07d95ed60f0a17ea13b4bc19c2ab2ec9052fedd27c9e1e57a1ec6e3a6470e5b7
2023-07-08 17:42:24 +00:00
7d0103bb06
Improved handling of integer inputs to the new sum() implementation.
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2023-07-06 20:34:06 +00:00
26cd8bc1af
Fix minor inaccuracies in the new sum() algorithm.
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2023-07-06 14:45:53 +00:00
45d7562843
Experimental attempt to boost the accuracy of sum() using the
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Kahan-Babuska-Neumaier algorithm.
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2023-07-06 13:19:10 +00:00
453be55b85
Reinstate the fpdecode() SQL function for testing, but only when compiled
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with SQLITE_DEBUG.
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2023-07-01 18:33:26 +00:00
17c20bb15e
Improved rounding policy.
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2023-07-01 17:56:00 +00:00
9ee9444a0a
Improved response to Infinity and NaN. Remove the termporary fpdecode()
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function.
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2023-07-01 15:23:24 +00:00
002330dc48
Add decimal rounding to the sqlite3FpDecode() routine.
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FossilOrigin-Name: 27871140caa833f0bc0962e44356993938e93dcf81c1074382b1560a3e1aeb61
2023-06-30 19:41:57 +00:00
a1b0ff1735
Experiments with a new algorithm for converting ieee-754 binary64 numbers
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into decimal.
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2023-06-30 18:35:43 +00:00
48114d08cf
Completely unwind the enhanced precision sum() from [a915f15a916af698] so
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as not to offend UBSAN and OSS-Fuzz.
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2023-06-30 14:01:09 +00:00
60f41362cf
Make the sum() function less precise and slower in order to avoid
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harmless signed integer overflow UBSAN warnings from OSS-Fuzz.
FossilOrigin-Name: 1be0646a2c352dbf03d2af87fd48b6f9edfd68666790ac6863144ac95f3e0621
2023-06-30 11:51:36 +00:00
12b198f1a2
Use ideas from T. J. Dekker in "A Floating-Point Technique for Extending the
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Available Precision" (1971-07-26) to enhance the accuracy of the SUM()
aggregate function in cases where input magnitudes vary wildly.
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2023-06-26 19:35:20 +00:00
077efc2730
Optimize the argument to the octet_length() function so that it does not
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attempt to read content from disk.
FossilOrigin-Name: 8b8ea4e3f52d96cc217bd1fb27ca4a83489ef1f250756ed2f790d1b0ee529a3a
2023-06-22 21:19:37 +00:00
d6c671e626
Merge recent trunk enhancements into the octet_length branch.
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2023-06-22 13:01:02 +00:00
55be21647e
Fix straggler misspellings and tidy the custom dictionary. Also include pickups from [forum:/info/c61fb09afd|forum post c61fb09afd].
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FossilOrigin-Name: 8c291d99946eb32b20b743921202f9c7cfb716268ff526817b27adbb7942e40b
2023-06-07 17:03:22 +00:00
bc91738e66
Add a C-source spell-checking facility. make misspell (on Nix)
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FossilOrigin-Name: 26c1bb4bd9e9f56613c3aa87407a7f562fd4ebde5bfd6dece02078001d9a45f8
2023-06-07 08:40:31 +00:00
b3d7f1c2db
Prototype implementation of the octet_length() SQL function.
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FossilOrigin-Name: 2db989c8635f7e89b3ea58d1fde94787fced039ac1a118d9b6362811eda73f87
2023-06-03 11:22:30 +00:00
e030619109
Updates to compile-time option usage and especially to the compile-time option
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test script in tool/omittest.tcl.
FossilOrigin-Name: fece588b186c4f9f76d626313e35336fd5681e966e9bd0fa1053b147c4e3c315
2023-05-05 14:16:31 +00:00
3c2688d137
Provide -DHAVE_LOG2=0 and -DHAVE_LOG10=0 compile-time options for use on systems
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that lack the log2() and log10() standard math library routines, to cause
SQLite to substitute its own alternatives.
FossilOrigin-Name: 7ee22f95e7a7d8650f961f20e304e56c7813e624f05655d7392ca9347748270f
2023-02-23 01:52:54 +00:00
3c7e90b894
Fix a harmless UBSAN warning in debugging code of the new unhex() function.
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FossilOrigin-Name: 315574d5cbe5c805ff2163052d986b054985984fb45bfb064d1a7b39a22b90eb
2023-02-18 15:50:23 +00:00
a50db438eb
Update unhex() to allow a second argument, specifying a set of characters that are permitted to appear between pairs of hexadecimal digits.
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FossilOrigin-Name: 66c8562690b19f17972589611810e1dccad3a48777acb05208289c1f77076f71
2023-01-24 17:19:47 +00:00
e3c11d55db
Add experimental user function unhex().
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2023-01-23 14:11:34 +00:00
3547e4997f
Fix lots of harmless, nuisance compiler warnings, mostly unused parameter
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warnings in extensions.
FossilOrigin-Name: c14bbe1606c1450b709970f922b94a641dfc8f9bd09126501d7dc4db99ea4772
2022-12-23 14:49:24 +00:00
79b9bc4452
More efficient implementation of large precisions on the "%c" format for
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the built-in printf(). This is an effort to avoid a reported
timeout on a (ridiculous) query generated by OSSFuzz.
FossilOrigin-Name: 371f9b88387a44a5f820279d79733d1deb7eafc72f320ec47a11679bbdbb49ef
2022-12-21 19:11:56 +00:00
3c1572ddb4
Use the log10() and log2() functions from the standard C library to implement
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the equivalent SQL functions, in the hope that this will prevent reported
precision problems.
See [forum:/forumpost/cfceb1230bdcfd84|forum post cfceb1230bdcfd84] and the
surrounding thread.
FossilOrigin-Name: 7c572d02e60a83b36543ba4d9d45f61e9fc111b61fee085410c2d87558c732d6
2022-11-17 14:40:33 +00:00
42dddb97de
Enhance the sqlite3_strglob() and sqlite3_strlike() interfaces so that they
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will do sensible things with NULL string pointers. This is an extra layer
of defense against bugs such as reported by
[forum:/forumpost/730b554179|forum post 730b554179].
FossilOrigin-Name: 8ba9c884bded52e3e044ff39c826c04838e7c31f05d802f4a14d9ce5a01ab721
2022-10-25 13:44:18 +00:00
2bc4a6cad0
Fix a problem in the LIKE and GLOB operators that may occur when the character immediately following a "%" or "*" wildcard is U+80. Reported by [forum:61bf7ccbdf].
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FossilOrigin-Name: 2da677c45b643482eec39e4db7079c772760bc966dc71bf6c01658cc468f5823
2022-10-14 15:10:36 +00:00
645682a7c7
Move the sqlite_offset() function implementation to be an in-line function,
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thereby avoiding special case code and freeing up a bit in the
FuncDef.flags field.
FossilOrigin-Name: 1c9812c458bd229c862efe5df1b64fae333da9871c8756b5ae4605a81bcda4b5
2022-06-01 11:05:59 +00:00
724e298e9c
Slight increase in the accuracy of log10().
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FossilOrigin-Name: c48a735bd4a1dbd541aed5937c25fc0c606c4263d8ee94cae30a06b1a7b26d9a
2022-05-25 13:10:29 +00:00
97a985e0c5
The sqlite_offset() function should be non-deterministic.
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dbsqlfuzz 3df8230bb940870db87ffca2c0fc759c1e7fa356.
FossilOrigin-Name: e1a185e60afd32d3b25278dee42049920759ccd8fe709161007f5daa4a048693
2022-03-06 11:43:06 +00:00
af7b8dcb58
Avoid dropping SQLITE_TOOBIG errors in the quote() function.
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FossilOrigin-Name: 115c3051a1ff7567e84f14fc4c49efe61bc2850248533449b0195c305ab6516e
2022-02-12 13:37:27 +00:00
69b0ce33fd
Fix various harmless compiler warnings.
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FossilOrigin-Name: 70049342d5ad57ea3e863bba19253934b868bacdd1c26c9371bac024a829badf
2022-02-04 13:15:01 +00:00
cd379b8a53
Merge trunk enhancements into the json-in-core branch.
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FossilOrigin-Name: ea755771699dcbffe0ddfd204d42fae9b6e79e107485c725b8eb6caab92aacb8
2022-01-09 19:36:39 +00:00
9d44f18b3c
Add a new built-in subtype() function.
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FossilOrigin-Name: a25f4ce255c034fc694c33728aedb98289ebccda9c48920829ef780b92b8faee
2022-01-09 16:54:02 +00:00
6bcd58572b
Add function format() as an alias for printf(), for compatibility with other
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systems.
FossilOrigin-Name: 68bffc612c467b2419bf5fe85a8ca16b787003e0e8c11f7c051a879f5865b847
2022-01-08 21:00:38 +00:00
9dbf96bd70
An attempt to integrate the JSON functions directly into the SQLite core,
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rather than holding them as an extension.
FossilOrigin-Name: 583b47d865fb8d2c9ae4d3a4e70356a8a758978efb0a282f6b19775bf41fb748
2022-01-06 01:40:09 +00:00
ef95d5583b
Factor out the logic that does quoting for the SQL quote() function, so that
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it might be reused for other purposes.
FossilOrigin-Name: 8e98ba1eeb1a5a61b7cb2de337ef8bca3d07494266a50d62b9c6bc60ad0a955f
2021-12-10 21:01:24 +00:00
4fc80671f5
Fix the group_concat() inverse function implementation so that it correctly
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handles BLOB inputs when database text encoding is UTF16.
FossilOrigin-Name: 38a1326b4bd11bbe2846990d099c28520d17ab4cace1af67248c2472f89df929
2021-10-12 22:55:04 +00:00
a4eeccdfdf
Protect all accesses to the Expr.x union using nearby assert()s and branches.
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FossilOrigin-Name: 8eaa1d4a98b24adf245bbd2fe9212aa6a924a0f09c445906d7f87574f36a7423
2021-10-07 17:43:30 +00:00
f975107437
Protect all accesses to the FuncDef.u and Expr.u unions using nearby
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assert()s or branches.
FossilOrigin-Name: 9af863f065e0bef491c2ab7525194505f9516f4e6dfc789d2e3a9d2c2438533a
2021-10-07 13:40:29 +00:00
5bf4715e01
Add the sqlite3ResultStrAccum() internal interface to simplify the
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the implementation of functions that return strings.
FossilOrigin-Name: e548e9299d3fd6ce5b647cf0dd93ff8e917a5eda43076c6a02389c52640e2e50
2021-10-03 00:12:43 +00:00
260ff08133
Fix a problem with group_concat() when it is used as a window function with
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a sliding window, as described by
[forum:/forumpost/f3eb24a6c0|forum thread f3eb24a6c0].
FossilOrigin-Name: f47f7f78227830c065d9ce715b8456eab81a38d680f76bf4ff08f298d84f9c7a
2021-10-01 22:48:52 +00:00
3dd01111e2
Remove unreachable branches in the fixed group_concat() code.
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FossilOrigin-Name: 8bd721c29e7a28cd75885dd80235e4e37aa0847229f769f49e01127f794fa63a
2021-10-01 02:45:48 +00:00
f06db3e892
Fixes to the version of "varsep" group_concat so that (1) it builds under
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separate compilation and (2) omits tabs in source code and (3) runs faster
than trunk. This variant of the group_concat_varsep branch might be preferred
over the tip because it preserves (undocumented) legacy behavior about the
position of separators relative to terms.
FossilOrigin-Name: 04399cf9645e04b171090ff8a3c27752929c10d2cd8778e26f8f3337aa902ab6
2021-10-01 00:25:06 +00:00
dde13e6f88
Get group_concat() to handle varying separator lengths when windowing
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FossilOrigin-Name: 98e0f2bf67cdee1da1edadeb54ff8564728b3f28fc821e46e8de201247c3fc87
2021-09-29 00:32:13 +00:00
3780f9a4aa
Make the affinity() function available even if compiled without
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SQLITE_DEBUG. Surround the implementation of all test-only SQL functions
with #ifndef SQLITE_UNTESTABLE.
FossilOrigin-Name: b7e00ef8059f6fb5658c6ad6f337cfdf065a5f1b1130452122282f3a69e98a93
2021-09-17 13:07:15 +00:00
c0bd26a23a
Update requirements marks to reflect recent documentation changes.
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FossilOrigin-Name: 08cab8921e670a0d1758b505fe8c7455f6194cec69d1b7b77de91688be1028a6
2021-09-14 18:57:30 +00:00
drh