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30,588 Commits 1,600 Branches 184 Tags
21c57abc535121fc5d02a1ebbf815e8fc45f4295
Commit Graph

523 Commits

Author SHA1 Message Date
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
drh
74672acd94 New SQL function for testing/debugging use only: parseuri(). 
FossilOrigin-Name: 37d3b6b17e92b2c760239c3053bbc7fb85091acd688c54a73af7611fe9501312
 2024-10-06 15:01:31 +00:00
drh
90fa4c7b2c Enhance the percentile() and median() extension functions so that they can be 
window functions.

FossilOrigin-Name: 4d0e3df4b9c609755977b8a462126242d2be1310c0122a8d4ba76d98d32a7230
 2024-08-31 14:31:17 +00:00
drh
34e4c6f732 Improved header comment on the sqlite3FpDecode() implementation. 
For the fpdecode() SQL function (available in debug builds only) limit
the value of the third parameter (mxRound) to be positive.

FossilOrigin-Name: 56af06fa12104a1fe119d7087746011183af053834eac72d0fb69f60d98054c6
 2024-06-10 12:43:03 +00:00
drh
e6d3c57204 Fix the window-function group_concat() so that it returns an empty string 
if it has one or more empty string inputs.  This fixes
a bug introduced by [c6da39115d3e2b0f] on 2019-03-26 (version 3.28.0) and
reported by [forum/forumpost/bf8f43aa522c2299|forum post bf8f43aa522c2299].

FossilOrigin-Name: cec6bb3fc9932ea78ec8e63d9c2d4e56a4d94b8973b9ea46033cc4baa87c0476
 2024-05-23 23:26:04 +00:00
drh
5ed044e893 Fix another problem from [c63e26e705f5e967] involving infinities and the 
Kahan-Babushka-Neumaier summation algorithm.  Problem reported by
[forum:/forumpost/23b8688ef4|forum post 23b8688ef4].

FossilOrigin-Name: 45d272ef38d5ee6189f81369aefb8e3ac35868a67687012d93c84f2bbc42520a
 2024-03-19 10:16:17 +00:00
drh
f79b0bdcbf The quote() SQL function should convert +Inf into 9.0e+999 and -Inf into 
-9.0e+999.  See [forum:/forumpost/6675b25108|forum post 6675b25108].

FossilOrigin-Name: 85dd79a6edecfc8c6307c6d215998f76dab086aa14528ddc64eb9955501becfd
 2024-02-26 22:28:21 +00:00
drh
8dca1905ed Ensure that the replace() SQL function always returns a TEXT value even 
when its first argument is numeric and its second argument is an empty string.
Fix for the issue reported by
[forum:/forumpost/3776b48e71|forum post 3776b48e71].

FossilOrigin-Name: 01868ebcd25fadb2034da234c0636e82d07c5abc902ef66493cadfc988e74d7b
 2024-01-20 13:18:22 +00:00
drh
d5e040b6f0 Add string_agg(X,Y) as an alias for group_concat(X,Y), for compatibility 
with SQLServer and PG.

FossilOrigin-Name: b91c19bf2680f60d7826ab5d9e7902e2dc2a55d847bbea565a6489d47f2cc8f1
 2023-10-20 20:19:30 +00:00
larrybr
99d43979d3 Avoid potential overflow in hex(). [forum:/forumpost/7ac0c9c5ea|See forum post 7ac0c9c5ea.] 
FossilOrigin-Name: 2e968114fd0e60eebcc088dec02684e10b06ac1ec42d6bedb5287362f5cbf032
 2023-10-13 01:39:47 +00:00
drh
51e3f7a1c3 Fix the length of the string in the new concat() and concat_ws() functions. 
FossilOrigin-Name: 325243226520376f4a142864ae3fb98866f25bff4dc50a6b648ef98428a7169f
 2023-10-02 17:06:28 +00:00
drh
43d71eb892 Remove an ALWAYS() from a branch that can in fact be false following an OOM 
fault.

FossilOrigin-Name: 3a1feb1c469d3dd50e2558581199b16bfd59b9d5bcb0de5f1a8f0ec30a17b4d1
 2023-10-02 15:56:37 +00:00
drh
7bb5a6db40 Fix the AVG() and TOTAL() functions (after the SUM() fix of [77d3dcd283595c52]) 
so that they work with infinitites.  Fixes a bug introduced by check-in.
[c63e26e705f5e967].  Bug reported by
[forum:/forumpost/8960fb40cc|forum post 8960fb40cc].

FossilOrigin-Name: 6df6f17ccb404c648076ccff4200d0eb5437f0e3e82424bf3da5ea682b107bb4
 2023-08-30 16:03:27 +00:00
drh
e1e67abc5c Add support for the CONCAT() and CONCAT_WS() SQL functions, modeled after 
the PostgreSQL behavior.

FossilOrigin-Name: 0b434ca7aa19eff4ad134a8c6f88f6a7ccab88864faa55e93579a2462d8ac3bc
 2023-08-29 15:24:41 +00:00
drh
bd953dfcad Fix an issue with infinity handling by the SUM() function that goes back 
to the extended-precision SUM() enhancement of
[check-in c63e26e705f5e967].  Problem reported by
[forum:/forumpost/1c06ddcacc86032a|forum post 1c06ddcacc86032a].

FossilOrigin-Name: 77d3dcd283595c52f24c07fc59ba60c9133b71c440cf3f799cf48c907c6fae3e
 2023-08-28 12:20:18 +00:00
drh
00eee07911 Fix the PRAGMA case_sensitive_like command so that the LIKE function continues 
to be innocuous after the PRAGMA.
[forum:/forumpost/925dc9f67804c540|Forum post 925dc9f67804c540].

FossilOrigin-Name: 84c268c34cba7207a90dad2a8e972ce90c85304e91f4933c76963822ad1ae48b
 2023-08-15 11:58:22 +00:00
drh
61a5b6e3bc Fix a harmless use-of-initialized-value warning from OSSFuzz that results 
from recent large string optmizations.

FossilOrigin-Name: 1a6b3dd1c40277a0d0f0bb562ddc4868aadd632fc2d29be1b17bb33fc22c46c8
 2023-07-22 15:21:41 +00:00
drh
37fd50df1f Two minor improvements to sum(), one of which was inspired by 
[forum:/forumpost/af5be98dbc|forum post af5be98dbc].

FossilOrigin-Name: a0d3e7571aded8d1e03908059d2d5aa5d62ec49bff099cb38f6f35df5e4b18b5
 2023-07-19 09:52:10 +00:00
drh
4c40b7b819 Always use the "LL" suffix on 64-bit integer literals. 
FossilOrigin-Name: 07d95ed60f0a17ea13b4bc19c2ab2ec9052fedd27c9e1e57a1ec6e3a6470e5b7
 2023-07-08 17:42:24 +00:00
drh
7d0103bb06 Improved handling of integer inputs to the new sum() implementation. 
FossilOrigin-Name: 31561c63bde6af2210296810fd66232b935033b4d26273a6b8a52142c54b4e12
 2023-07-06 20:34:06 +00:00
drh
26cd8bc1af Fix minor inaccuracies in the new sum() algorithm. 
FossilOrigin-Name: e3f7a960c9bd8e84cd70f0585bb955d043604a92001d0e2bf6c1216bb1fd7221
 2023-07-06 14:45:53 +00:00
drh
45d7562843 Experimental attempt to boost the accuracy of sum() using the 
Kahan-Babuska-Neumaier algorithm.

FossilOrigin-Name: ebc5edd3b10c1102b07b9fb0d6837266b81e55504ef883b9b8a7ad5e8ab29dd2
 2023-07-06 13:19:10 +00:00
drh
453be55b85 Reinstate the fpdecode() SQL function for testing, but only when compiled 
with SQLITE_DEBUG.

FossilOrigin-Name: 07eab52e0801bb0e4743b304a06ad16e18cdf8eaa18c0faf8d47a1f5d8576ea0
 2023-07-01 18:33:26 +00:00
drh
17c20bb15e Improved rounding policy. 
FossilOrigin-Name: 6f1122e942b8269552daaf13d647d200d8546ec25f36310d67037c6b58d09976
 2023-07-01 17:56:00 +00:00
drh
9ee9444a0a Improved response to Infinity and NaN. Remove the termporary fpdecode() 
function.

FossilOrigin-Name: 76ab8ae809a47a66688e2d50c20dc87ce946d82e9ffebb3adda55c451fad07fc
 2023-07-01 15:23:24 +00:00
drh
002330dc48 Add decimal rounding to the sqlite3FpDecode() routine. 
FossilOrigin-Name: 27871140caa833f0bc0962e44356993938e93dcf81c1074382b1560a3e1aeb61
 2023-06-30 19:41:57 +00:00