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32,273 Commits 1,782 Branches 392 Tags
4267bbf920ccf352ff3fa813ff2ae513dedea491
Commit Graph

548 Commits

Author SHA1 Message Date
drh
e12c6f2590 Updates to build instructions, especially on Windows. Fix a harmless 
compiler working in debug builds on Windows.

FossilOrigin-Name: be245e136a550faa7c84694156c40dc9778f50b00016892c29a2314bef14b6b7
 2026-08-01 15:08:48 +00:00
drh
cb704c0ad6 Add assert()s and a testcase() to and fix and improve comments in 
the percentSort() routine.

FossilOrigin-Name: be673351ebdeba8e78ee11941ecb3e178e4d5212ff07f1d2790320af1d52e6a0
 2026-07-13 14:52:13 +00:00
drh
c07e6ad039 Change the undocumented and unsupported sqlite_log() SQL function so that 
it is marked as unsafe and direct-only.
[bugs:/info/3311f8d5b8|Bug 2026-06-25T10:19:43Z].

FossilOrigin-Name: c30ea3cefe346a3d87b57710a51b059371543c5abc75d08c4ca827bbe3b3f622
 2026-06-25 15:17:15 +00:00
drh
9487f6d441 Further refinements and uses for sqlite3_result_str(). 
FossilOrigin-Name: 974253a6058a7120354261b2134ed4803373031996957c7334161370b80bf428
 2026-06-19 20:01:47 +00:00
drh
7b386a77ff Prototype implementation for a new sqlite3_result_str() API. 
FossilOrigin-Name: cdbc62c36a37ad687589917c6f1e92ded6d99959c54eb8d79eaaef6fa57dacd3
 2026-06-19 17:03:21 +00:00
drh
3a697a26de Fix the format() SQL function so that it returns an empty string not a 
NULL if the first argument is an empty string.
[bugs:/info/2026-06-19T16:40:04Z|Bug 2026-06-19T16:40:04Z]

FossilOrigin-Name: ece7af98a8bf982567b489cf82a52519f46a1c9360c82a486dbe1cd0664b1555
 2026-06-19 16:55:08 +00:00
dan
b348459070 Improve comments in percentSort(). 
FossilOrigin-Name: 9b43500f51ae7b43f0e2cc805bb8c93907eddbd8caf21ee5b5a3d2e795962088
 2026-06-15 17:13:40 +00:00
dan
36e9e015de Speed up SQL aggregate functions percentile() and median() by avoiding a full sort of the array of arguments. 
FossilOrigin-Name: 9232b5f21d76dc702ccda5c689d61bcd0057fb1f2a4db6a70c607c25ad03a027
 2026-06-13 20:16:54 +00:00
drh
0b9f4ee89c Fix harmless compiler warnings. 
FossilOrigin-Name: dd0c161fcd1619518cd4671d64afb6afeec44c140ec176ccb8616d381a88f42f
 2026-06-11 22:48:16 +00:00
drh
2f5d281796 Change loop counter variables from int to i64 to avoid a potential 
integer overflow inside an assert() statement when SQLite is compiled 
with SQLITE_DEBUG and an extra-large SQLITE_MAX_LENGTH.  Does not
affect production builds.
[bugs:/info/2026-06-09T08:53:14Z|Bug 2026-06-09T08:53:14Z].

FossilOrigin-Name: 77f615d9833b1f5eaabcb1a6b59af3a6698752abcd16592091f1630beec5969e
 2026-06-09 10:16:40 +00:00
drh
6bf7825ac5 Minor performance enhancement and improved comments on the quicksort 
algorithm used by the median() implementation in func.c.

FossilOrigin-Name: 2800f6a75bbb6ddc86f2e029a7d36ff08febe03812302fb7931eb68da316f74d
 2026-06-06 17:20:35 +00:00
drh
c2d29194a8 Use tail recursion on the larger of the two partitions when doing a 
quicksort as part of the implementation of the median() function,
to avoid excess stack usage on pathological inputs.
[bugs:/info/2026-06-03T07:26:42Z|Bug 2026-06-03T07:26:42Z].

FossilOrigin-Name: 7dc987165c030c260ba90a8878291b5ceb037c48c2f437a8fb3f05b6c4f84fde
 2026-06-03 16:21:17 +00:00
drh
d076d98ec8 Fix the format() SQL function so that it reports TOOBIG and NOMEM errors. 
Fix a possible integer overflow on %#Q formatting.
[bugs:/info/2026-05-31T02:00:07Z|Bug 2026-05-31T02:00:07Z].

FossilOrigin-Name: 3bfe0510aecccf113b9d008c308fca3096e9c45c59b919c0b91bb4703415988f
 2026-05-31 09:18:31 +00:00
dan
397a3c4a04 Have window functions sum(), total() and avg() correctly handle the obscure case where integer overflow occurs as part of the same step that adds the first real value to the running total. 
FossilOrigin-Name: 614f8cbc374c7a2d39826706f16ab1c17e75abb420a70be356c7eefa95b271a5
 2026-05-15 18:36:11 +00:00
drh
f6b807a022 Performance improvement in the substr() and length() SQL functions. 
Caution: The new code may give different results for malformed UTF8.
I do not consider that to be a problem by the GI/GO principle.

FossilOrigin-Name: 6124d27a33f4562f40777c2c6318d61709f7b481f23f9ade45064d8ad0700752
 2026-04-18 12:31:53 +00:00
drh
a2116f86b0 The sqlite3_str_new() interface never returns NULL, even after an OOM. 
Code that uses that interface should invoke sqlite3_str_errcode() to see
if an OOM has occurred.

FossilOrigin-Name: cb910047edc591102dd4ed0d57c863b366981b8aa1d3085d5f95b1fbbabf6c31
 2026-04-15 14:41:25 +00:00
drh
c409eaaf14 Reduce the compiled size of the quote() SQL function. 
FossilOrigin-Name: 9ea980a35628f7d0741ab6c65840ab9dab8abb576c6c60109147336452f9637a
 2026-03-28 13:59:34 +00:00
drh
c67a538168 Add an assert() to sqlite3RegisterLikeFunctions() to hopefully prevent 
future false-positive bug reports coming out of CodeQL.

FossilOrigin-Name: 7c5f4dcd748baa60097bbf68d7aca99cc959bb1f7da92bd9ad86a4425a37d391
 2026-02-27 11:36:43 +00:00
drh
5c977eaa0a Refactor the sqlite3AtoF() routine so that it requires a zero-terminated 
UTF-8 input.  When the need arises to convert UTF16 or non-terminated
strings, wrapper functions are used.  Together, this makes the code slightly
smaller and faster.

FossilOrigin-Name: 67c7c72e9bdf04c920d77006538a202c923fa74b47c81dc3014c2929dac7277d
 2026-02-16 16:56:59 +00:00
drh
7d49eb1dff Add a "const" to avoid a harmless false-positive compiler warning. 
FossilOrigin-Name: d44af6cc093ab6b5a196249a84681148bbae3f624abf4bc8cc42c88f3f7320b2
 2026-02-13 11:40:28 +00:00
drh
e0e67f1a73 Add a new encoding constant SQLITE_UTF8_ZT, which if used with 
sqlite3_result_text64() or sqlite3_bind_text64() declares that the
string provided is UTF8 and zero-terminated at the length specified.

FossilOrigin-Name: 2d84ce88fed12766272f6b1293927eb4c7ce92da0334b09b4875ed2dfdd00ade
 2026-01-21 19:24:07 +00:00
dan
8ce786f173 Fix sanitizer complaints in the regexp extension. 
FossilOrigin-Name: 6ff9ecb89d769bc2a27f8a57130f28ec7478979d3e35ba765c16017b5bdf775d
 2025-10-27 11:20:47 +00:00
drh
a105989856 Rename the file control to SQLITE_FCNTL_FILESTAT. Rename the SQL function 
to sqlite_filestat().  Rename the enable macro to SQLITE_ENABLE_FILESTAT.

FossilOrigin-Name: ee797fec4eeace78caa2c5e463108bf1a6568db7c33d94d9fe6624cfc6b0d4fe
 2025-10-25 20:46:09 +00:00
drh
234c6c4bf0 The sqlite_file_info() function should always return JSON, unless there 
is an OOM.

FossilOrigin-Name: 65aed79c29bf1aac0934475c02b358b916f413b20d2475ec7b631011f21f4e2b
 2025-10-25 13:16:41 +00:00
drh
093b26e8e0 New diagnostic SQL function "sqlite_file_info()" and its associated 
file-control SQLITE_FCNTL_GET_INFO.

FossilOrigin-Name: 56ab9692583d5b64e1ab727e08a01c0a65b4e318b455c94397663ef8d3d7b6b8
 2025-10-24 17:42:03 +00:00
drh
21c57abc53 Increase the range of integer indexes in the the merge() family of 
SQL functions.

FossilOrigin-Name: 8d3943890ef3b533df35c4784c2a42c52503a4d9c3dbe67241510d8b70669b48
 2025-10-18 11:04:03 +00:00
drh
a8bb50ce95 Fix a bug in concat_ws() in which an initial empty string was treated as if 
it was a NULL value.

FossilOrigin-Name: eb2e4e46171c12f59aa5d571eeb310534360b110c3e7bda6eaf68f0e25546264
 2025-10-13 12:36:54 +00:00
drh
01f5e6e757 Add ENABLE compile-time options to enable carray() and median(). Hence 
there is no new code and no increase in library size without the ENABLE
macros.

FossilOrigin-Name: 7dec290b413ca1bc67694743d8b771e1634fd85251f1a23d60aaf36c63f0f366
 2025-10-08 18:11:37 +00:00
drh
ba5cce9f08 This is how the percentile() family of functions might be integrated into 
the amalgamation, should we elect to do such a thing.

FossilOrigin-Name: c2cfc9c92e35105e26a4c0887b0401ace15a874fd18046135de4b375ba968795
 2025-10-08 16:29:14 +00:00
dan
9b6bc61dbd Fix some integer overflow warnings in the base64 and base85 extensions. 
FossilOrigin-Name: 06b4bd2aba22c57f5a5fed606c3bee225dee6fdc13bb16cc58194040ef0d7d85
 2025-10-07 15:14:03 +00:00
drh
23e59b34e9 Fix the concat_ws() SQL function so that it includes empty strings in the 
concatenation.  [forum:/forumpost/52503ac21d|Forum post 52503ac21d].

FossilOrigin-Name: 80a78987da484d435a8242c05c48d546d430920df713b24a9d9d9fff7ba1113d
 2025-06-11 00:01:42 +00:00
stephan
129203bce3 Internal doc typo fixes reported in [forum:01d15f21b6|forum post 01d15f21b6]. 
FossilOrigin-Name: d6514c20ff583ccc4fb3a526fb8f86a563224f513ee10bb39a978046bd952726
 2025-02-27 03:23:33 +00:00
drh
a357a90f12 Consolidate two different UTF8 encoders into a single subroutine. 
FossilOrigin-Name: 6208e494858b9d362efc7db4e8aac6f8e93fe51d2e038c94dfa97c55a74688a0
 2025-02-25 11:47:34 +00:00
drh
b6205d4bc3 Add the unistr_quote() function that works like quote(), but also escape 
control characters using unistr() if necessary.

FossilOrigin-Name: e99e37b54baf7283588ead4983e613a1e14c58a0b92be5f7b25b4d9d287b5324
 2025-02-24 13:51:24 +00:00
drh
4d70dbad57 Prototype implementation of the unistr() SQL function. 
FossilOrigin-Name: 7cc302de05ed2a973372c05f55b048bf99af3d2590dd29f6fd0f379fb451aa0e
 2025-02-22 23:18:38 +00:00
drh
ef86b942b9 Code changes that make it easier to prove that no 32-bit integer overflows 
happen during memory allocation.  No problems fixed; this change is just
to make future maintenance easier.

FossilOrigin-Name: 215650a5a1d55bdbca9c92524804a1a54456a17f42a17e53747b21a6507506f5
 2025-02-17 17:33:14 +00:00
drh
f4fc2ee203 Add a typecast to avoid 32-bit integer overflow in the concat_ws() 
function with an enormous separator values and many arguments.

FossilOrigin-Name: 498e3f1cf57f164fbd8380e92bf91b9f26d6aa05d092fcd135d754abf1e5b1b5
 2025-02-16 10:57:25 +00:00
drh
3efac4aa78 Performance optimization to the substr() SQL function. 
FossilOrigin-Name: ce228ce3d0132ad758b5b7464fcf22ae5976df3c02ec948280cc76290c79ed0b
 2025-02-09 20:23:29 +00:00
drh
802b042f6e Detect and report signed integer overflow in the sumInverse() routine, 
used by window functions.

FossilOrigin-Name: 317e9a470fba2a4b717b9cb66488b8fccb44810a80f3a7deaf1ea81906e2b8d2
 2025-02-04 02:38:23 +00:00
drh
36279c256b Enhance the if() and iif() SQL functions so that they support any 
number of arguments greater than or equal to two.
Suggested by [forum:/forumpost/40f7867f75f80|forum post 40f7867f75f80].

FossilOrigin-Name: fb76d184ee5afc41009c4023bb68b3ddd42c9235a79ec9695c26f5bbe9a1aa25
 2025-01-28 20:32:48 +00:00
drh
2e899ccaff The FuncDev.nArg field values -3 and -4 now have special meansing of 1 or more 
or 2 or more arguments, respectively.  This saves space in the built-in
function table, resulting in slightly faster performance and a reduced binary
size.

FossilOrigin-Name: 753fd747f24c5e9a019eb00b8a4f66e65c6733ba10a7adbd1b55786867c32ca6
 2025-01-21 15:12:00 +00:00
drh
e0190a6984 Fixes to the substr() SQL function so that it can handle ridiculously large 
numbers in its 2nd and 3rd arguments without signed integer overflows.

FossilOrigin-Name: c1de8f916ea617109a903c436c57d082756fbb2b933ba9ce6998b9b912b12dea
 2024-12-28 12:32:01 +00:00
drh
ccfb50d55e Correction to check-in [a9759fc78d6cb0df] - printf() parameters values must 
be integers.

FossilOrigin-Name: 2db531d1911369ea932d3559abcc02389e5f9ad72b46b0801dfb6063855aee1b
 2024-12-19 19:52:13 +00:00
drh
2dcd4fad6b Fix additional integer overflow problems in the substr() function. 
FossilOrigin-Name: 472abb492f1d1553ae6bdf53cc64bebfe75423526335beab7eaff26cc495cd7d
 2024-12-19 12:08:39 +00:00
drh
b097ef29d1 Fix possible integer oveflow in the second and third argument to substr(). 
FossilOrigin-Name: b04b4006f38f83d36eaf43c4bace7d53866b02b45e0ddcf1704266fed3bfc11c
 2024-12-18 20:29:29 +00:00
drh
47bc07d425 Avoid 32-bit roundoff error on the second argument to round(). 
[forum:/forumpost/170aeab92a|Forum post 170aeab92a].

FossilOrigin-Name: a9759fc78d6cb0df7c81f20c2c5c358729e571ebee50ee2b1441a15239d0b4b6
 2024-12-18 18:29:19 +00:00
drh
f12e5d1a0f Provide a two-argument version of the iif() function, plus an alternative 
spelling that only requires a single "i".

FossilOrigin-Name: a251ee645e11e24b67473d8a5bd3f8b72fde1ac9d5fda074f5da2297deb2faa8
 2024-11-26 20:56:03 +00:00
drh
bc4df6079c Remove the never-used and never-documented and long-ago deprecated 
user-authentication feature option.

FossilOrigin-Name: 3a3f7bf4307c27e56546e51da06ecc9a262cdf155fda2dd359aa2326d207a147
 2024-10-28 17:27:15 +00:00
drh
ddc764b274 Add a NEVER() to an unreachable branch in the new indexed-subtype logic. 
Mark the pi() function as deterministic.

FossilOrigin-Name: 50be8f5091b2202b67a80f826feee2c378f001745ad5acb7c4374423bbf6ff22
 2024-10-07 21:04:57 +00:00
drh
f7f78a624d The (undocumented) subtype() SQL function should have the SQLITE_SUBTYPE flag. 
FossilOrigin-Name: c361dd91841da64fdd009e6eab389ccd81266a24d1070e5313fe1d22e6cef65a
 2024-10-07 18:06:17 +00:00