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103 min agoSmall parsing performance improvement by reducing the amount of the master
drh [Wed, 17 Jun 2026 20:11:26 +0000 (20:11 +0000)] 
Small parsing performance improvement by reducing the amount of the
Parse object that needs to be initialized.

FossilOrigin-Name: 0901b7c2dfb87707fa159f24ada5abb0a2914043c6f0571de4ce55c80edb663b

2 hours agoRemove the unnecessary Parse.szOpAlloc field, for small size reduction
drh [Wed, 17 Jun 2026 19:28:17 +0000 (19:28 +0000)] 
Remove the unnecessary Parse.szOpAlloc field, for small size reduction
and performance improvement.

FossilOrigin-Name: 9a2a230464e4314033e67e602dbd9f554f50ec2eefc7b1a5f05b85249591f7b8

3 hours agoSmall performance boost in the sqlite3VdbeResolveLabel() routine of the
drh [Wed, 17 Jun 2026 18:39:05 +0000 (18:39 +0000)] 
Small performance boost in the sqlite3VdbeResolveLabel() routine of the
code generator.

FossilOrigin-Name: f786f3643e410e862568777ea021afa47c924348e511a83e7e9000cf14bec534

4 hours agoSafer conversion from double to 64-bit integer in two places.
drh [Wed, 17 Jun 2026 16:57:19 +0000 (16:57 +0000)] 
Safer conversion from double to 64-bit integer in two places.

FossilOrigin-Name: 17c444382979b70cdca78e51418366e802b2d41d1156774e5e9693b52542b84c

7 hours agoAdditional refinements to the large floating-point handling in
drh [Wed, 17 Jun 2026 14:53:14 +0000 (14:53 +0000)] 
Additional refinements to the large floating-point handling in
generate_series().  Follow-up to [5aab8c2cde63f9db].

FossilOrigin-Name: 4247c5d9afb162a3e9f334b5121f0df2bfddb916054fa1e6fadb65b1983a7ed8

8 hours agoFix CLI CSV test cases so that they suppress the CR on windows and thus
drh [Wed, 17 Jun 2026 13:52:55 +0000 (13:52 +0000)] 
Fix CLI CSV test cases so that they suppress the CR on windows and thus
work cross-platform.

FossilOrigin-Name: 7a2c96405e365dd2efb3593e0973536d1f87f7183d5442f3bc98ca23310e5530

8 hours agoFix the OR-to-IN optimization so that it works in cases where there are
drh [Wed, 17 Jun 2026 13:31:01 +0000 (13:31 +0000)] 
Fix the OR-to-IN optimization so that it works in cases where there are
conflicting collation sequences on the equality constraints within the OR.
[bugs:/info/2026-06-17T05:04:48Z|Bug 2026-06-17T05:04:48Z].

FossilOrigin-Name: 984c9b181801c1de06782335eb049f32d1dc1d5739a7fb9c94630c22159a4f8c

21 hours agoTypo fix in a comment used to generate documentation. No changes to code.
drh [Tue, 16 Jun 2026 23:59:58 +0000 (23:59 +0000)] 
Typo fix in a comment used to generate documentation.  No changes to code.
[forum:/info/2026-06-16T23:18:50Z|Forum 2026-06-16T23:18:50Z].

FossilOrigin-Name: 7386faef618acb006086d688fcea854a7c555ac1bcfcaa294ea86e964e4ce75f

32 hours agoLimit VIEW recursion depth to SQLITE_LIMIT_EXPR_DEPTH to prevent
drh [Tue, 16 Jun 2026 13:43:08 +0000 (13:43 +0000)] 
Limit VIEW recursion depth to SQLITE_LIMIT_EXPR_DEPTH to prevent
static overflow in malicious schemas with tens of thousands of
levels of recursive views.
[bugs:/info/2026-06-16T04:21:51Z|Bug 2026-06-16T04:21:51Z]

FossilOrigin-Name: 3f3fb9b638f59ad982beafb7c117f24ddd3da612e62c862510805fa672ffae06

34 hours agoFix instances of potential buffer overflow caused by loading the contents of a stat4...
dan [Tue, 16 Jun 2026 11:53:19 +0000 (11:53 +0000)] 
Fix instances of potential buffer overflow caused by loading the contents of a stat4 table with an absurd number of samples in a 32-bit build. Bug [bugs:/info/2026-06-16T11:30:52Z | 2026-06-16T11:30:52Z].

FossilOrigin-Name: 0b72246732fecd7909add28f2d95f1727e1c4dc6c8f3b8e6e3482f6d17c92d34

36 hours agoFix a possible call to memcpy() with a NULL source pointer when the size
drh [Tue, 16 Jun 2026 09:53:23 +0000 (09:53 +0000)] 
Fix a possible call to memcpy() with a NULL source pointer when the size
parameter is zero (which is technically undefined behavior but in practice
is completely harmless) in the sha1_query() extension function.
[bugs:/info/2026-06-16T07:42:23Z|Bug 2026-06-16T07:42:23Z].

FossilOrigin-Name: 2063926473adaf9619ca10fd47b273ef59b1f77136836d575e5db3cfd68987da

2 days agoConsistent error messages for excess trigger nesting.
drh [Mon, 15 Jun 2026 17:39:46 +0000 (17:39 +0000)] 
Consistent error messages for excess trigger nesting.

FossilOrigin-Name: 4fb9f2ffb4b45d81c70f561f45cf29a0d5872a612b948882c4a2a14629bcbe28

2 days agoSpeed up SQL aggregate functions percentile() and median() by using quickselect to...
dan [Mon, 15 Jun 2026 17:27:05 +0000 (17:27 +0000)] 
Speed up SQL aggregate functions percentile() and median() by using quickselect to find the required values instead of fully sorting the array of values with quicksort.

FossilOrigin-Name: 0796d337f6a0ef02a460a24eadda20e33e8fb9ec64b696ae1addee69c1bfddeb

2 days agoNew Windows makefile targets for common EXEs that omit the ".exe" suffix, so
drh [Mon, 15 Jun 2026 17:14:12 +0000 (17:14 +0000)] 
New Windows makefile targets for common EXEs that omit the ".exe" suffix, so
that when muscle memory kicks in and we type "make sqlite3" on windows, it
still works.

FossilOrigin-Name: 1152463a66b47eed27b71e87533e8361b6077dc54ff55b8cd2ccde5cfa8199bd

2 days agoImprove comments in percentSort(). pecentile-partial-sort
dan [Mon, 15 Jun 2026 17:13:40 +0000 (17:13 +0000)] 
Improve comments in percentSort().

FossilOrigin-Name: 9b43500f51ae7b43f0e2cc805bb8c93907eddbd8caf21ee5b5a3d2e795962088

2 days agoEnhance SQLITE_LIMIT_TRIGGER_DEPTH so that it also limits a chain of
drh [Mon, 15 Jun 2026 16:45:35 +0000 (16:45 +0000)] 
Enhance SQLITE_LIMIT_TRIGGER_DEPTH so that it also limits a chain of
distinct triggers during code generation.
[bugs:/info/2026-06-15T06:44:07Z|Bug 2026-06-15T06:44:07Z].

FossilOrigin-Name: 0b5378678e3d095ef982bb3b5d5ad05dfb15ce4ee12170b8d0a83fa4b75404c0

2 days agoChange the PACKAGE_BUGREPORT config option point to /bugs instead of /forum.
stephan [Mon, 15 Jun 2026 15:48:40 +0000 (15:48 +0000)] 
Change the PACKAGE_BUGREPORT config option point to /bugs instead of /forum.

FossilOrigin-Name: ca15fedede9873b5f72f29f7cd33cba294cd49593999fc952670e2d5ce7ec86e

2 days agoFix a problem sometimes causing an UPSERT to incorrectly convert an excluded.* column...
dan [Mon, 15 Jun 2026 15:38:16 +0000 (15:38 +0000)] 
Fix a problem sometimes causing an UPSERT to incorrectly convert an excluded.* column from type REAL to INT in cases where doing so does not cause data loss. Bug [bugs:/info/2026-06-15T09:08:12Z | 2026-06-15T09:08:12Z].

FossilOrigin-Name: 71334f7ec95edc91138b51ef6fe455a4a8c1db130484237eb241956bc549aa5c

2 days agoImprovements to handling of inequality constraints on generate_series().value
drh [Mon, 15 Jun 2026 15:27:26 +0000 (15:27 +0000)] 
Improvements to handling of inequality constraints on generate_series().value
against very large floating-point values.
[bugs:/info/2026-06-15T04:37:48Z|Bug 2026-06-15T04:37:48Z].

FossilOrigin-Name: 5aab8c2cde63f9db6b2346c86512efd6297937cad4e1306759b0f448815ad2e0

2 days agoAdditional tweaks and test cases for generate_series() constraints series-boundry-cases
drh [Mon, 15 Jun 2026 15:24:37 +0000 (15:24 +0000)] 
Additional tweaks and test cases for generate_series() constraints
using very large floating-point numbers.

FossilOrigin-Name: 50d611404a444f23368c684dfa6dc34b057f8adb45aa058bcf3b2768e908eb3e

2 days agoBetter behavior for generate_series() in cases where constraints involve
drh [Mon, 15 Jun 2026 14:16:13 +0000 (14:16 +0000)] 
Better behavior for generate_series() in cases where constraints involve
floating point number that are near the minimum and maximum 64-bit integer
values.

FossilOrigin-Name: 236ef21789c4ebb67a8cf0a841341fab1477a6fe8e88b575e9f450a8f868e618

2 days agoAvoid a possible buffer overrun in 32-bit builds of fts5 that could occur when proces...
dan [Mon, 15 Jun 2026 13:39:20 +0000 (13:39 +0000)] 
Avoid a possible buffer overrun in 32-bit builds of fts5 that could occur when processing corrupt records. Bug [bugs:/info/2026-06-14T12:21:15Z | 2026-06-14T12:21:15Z].

FossilOrigin-Name: 0fa3345fe4464804f6846c2598774b9e700df39570e81e020de21e06e2ff044d

2 days agoRevert the native impl of kvvfs's xOpen() (as distinct from the JS impl which the...
stephan [Mon, 15 Jun 2026 12:36:24 +0000 (12:36 +0000)] 
Revert the native impl of kvvfs's xOpen() (as distinct from the JS impl which the wasm build uses) to the historical db name restrictions of 'local' or 'session', failing with SQLITE_CANTOPEN if passed another name. [ec866b04d088e53b] overhauled support for kvvfs db names in JS but it turns out that the native impl still relies on those names in order to match journals to databases. Correct a related too-lenient assert() in the WASM pieces.

FossilOrigin-Name: 4b3ec30c63e3824163a2e6cacceb9630301b61f3ffd2b80f8a7b234f09bc251b

2 days agoFix a problem that could cause fts5 to return incorrect answers when performing prefi...
dan [Mon, 15 Jun 2026 11:47:52 +0000 (11:47 +0000)] 
Fix a problem that could cause fts5 to return incorrect answers when performing prefix queries on tokens with synonyms. Bug [bugs:/info/2026-06-14T11:11:06Z | 2026-06-14T11:11:06Z].

FossilOrigin-Name: 323d87541a63f0b2c64271c78ad6ebd5d04220da59aebfdfbc07caa691af816a

2 days agoRegardless of whether the platform is 32 or 64-bits, Use 64-bit arithmetic to calcula...
dan [Mon, 15 Jun 2026 11:03:13 +0000 (11:03 +0000)] 
Regardless of whether the platform is 32 or 64-bits, Use 64-bit arithmetic to calculate buffer sizes in the fts3_snippet(). Bug [bugs:/info/2026-06-14T09:19:52Z | 2026-06-14T09:19:52Z].

FossilOrigin-Name: 79dc1949b2171c46f6649743ed7dbbf6b83046901ec18ffcbc37a2a47544b100

2 days agoFix rounding behavior in the decimal extension when all leading digits
drh [Mon, 15 Jun 2026 10:13:31 +0000 (10:13 +0000)] 
Fix rounding behavior in the decimal extension when all leading digits
are 9 and there is not fractional component.
[bugs:/info/2026-06-15T03:49:42Z|Bug 2026-06-15T03:49:42Z].

FossilOrigin-Name: c6a3b18ee9eb4b8dda57fab94aea9c61aed5e1ffe600f0bcf2c90ca752f2512b

2 days agoPrevent array overflow when decoding a corrupted value from the
drh [Mon, 15 Jun 2026 01:24:06 +0000 (01:24 +0000)] 
Prevent array overflow when decoding a corrupted value from the
underlying key/value store.
[bugs:/info/2026-06-14T21:58:12Z|Bug 2026-06-14T21:58:12Z]

FossilOrigin-Name: 732c8f81b5a914831c36610ddaed3da15a7f9fdbf54f44872e181b941368d702

2 days agoRemove the unused, untested, experiemental "blobio.c" extension, to
drh [Sun, 14 Jun 2026 22:01:56 +0000 (22:01 +0000)] 
Remove the unused, untested, experiemental "blobio.c" extension, to
avoid confusing AIs.
[bugs:/info/2026-06-14T15:12:50Z|Bug 2026-06-14T15:12:50Z]

FossilOrigin-Name: 45918d5e97a0c29c6fa03d09ac8e131dcca3bf4268bf4f5c46c221b1f900651a

3 days agoDo not allow ridiculous "columns=N" values in the (unused) csv virtual
drh [Sun, 14 Jun 2026 20:10:28 +0000 (20:10 +0000)] 
Do not allow ridiculous "columns=N" values in the (unused) csv virtual
table in the extensions folder.
[bugs:/info/2026-06-14T15:22:47Z|Bug 2026-06-14T15:22:47Z]

FossilOrigin-Name: ecae4a2ddf103fe575c6864d201e83a9bb084b511685397db41b3349c91b38e6

4 days agoSpeed up SQL aggregate functions percentile() and median() by avoiding a full sort...
dan [Sat, 13 Jun 2026 20:16:54 +0000 (20:16 +0000)] 
Speed up SQL aggregate functions percentile() and median() by avoiding a full sort of the array of arguments.

FossilOrigin-Name: 9232b5f21d76dc702ccda5c689d61bcd0057fb1f2a4db6a70c607c25ad03a027

4 days agoMake the --header option to the CLI sticky, so that it does not get
drh [Sat, 13 Jun 2026 18:04:18 +0000 (18:04 +0000)] 
Make the --header option to the CLI sticky, so that it does not get
turned off by subsequence --csv or similar mode change options.
[bugs:/info/2026-06-13T11:49:18Z|Bug 2026-06-13T11:49:18Z]

FossilOrigin-Name: b19cef1862444ee694eeea2254aa9a8d74d2343da5a8257c22e3068f388aa2fd

5 days agoWhen reading a super-journal name from a journal file, allocate a new buffer rather...
dan [Fri, 12 Jun 2026 18:35:24 +0000 (18:35 +0000)] 
When reading a super-journal name from a journal file, allocate a new buffer rather than using Pager.pTmpSpace. This prevents a buffer overrun that could occur when using a VFS with a large sqlite3_vfs.mxPathname value with a database with a small page size.

FossilOrigin-Name: 7f71859841af7cb0806f58e9c8013a990fcca72b807a0513156d7127ce5c7b62

5 days agoFix errors in comments on this branch. Also prefer SQLITE_NOMEM_BKPT to SQLITE_NOMEM. super-journal-malloc
dan [Fri, 12 Jun 2026 17:32:44 +0000 (17:32 +0000)] 
Fix errors in comments on this branch. Also prefer SQLITE_NOMEM_BKPT to SQLITE_NOMEM.

FossilOrigin-Name: ac17669e840dbac5c7c75e9b6014cca2d289aba8de36f9d1d0d61186e8cc6207

5 days agoFix a memory leak that could follow an OOM error in the new code on this branch.
dan [Fri, 12 Jun 2026 17:16:12 +0000 (17:16 +0000)] 
Fix a memory leak that could follow an OOM error in the new code on this branch.

FossilOrigin-Name: d4774a898730d9ef7564bba0a8531748e31e6517ab29564c2f5a0196c1584451

5 days agoImproved documentation for sqlite3_deserialize().
drh [Fri, 12 Jun 2026 16:47:45 +0000 (16:47 +0000)] 
Improved documentation for sqlite3_deserialize().

FossilOrigin-Name: f15d076820f4a0d9e7fa32d99575bce27bde5e987bb415e6cfb69b06f0da7e1e

5 days agoDo not use shared locks on SHM files when the filename is a long DOS-device
drh [Fri, 12 Jun 2026 16:26:39 +0000 (16:26 +0000)] 
Do not use shared locks on SHM files when the filename is a long DOS-device
path.  Only used shared locks for UNC paths.  Do not confuse the
long-DOS-device syntax with UNC paths.

FossilOrigin-Name: a4691489f21bb1645bb8de649268dd457af53c5f613f2a7fd2e5569f029efa87

5 days agoFix a buffer overwrite in fts3 that could occur while processing NEAR queries against...
dan [Fri, 12 Jun 2026 15:36:26 +0000 (15:36 +0000)] 
Fix a buffer overwrite in fts3 that could occur while processing NEAR queries against corrupt records. Bug [bugs:/info/2026-06-11T23:11:26Z | 2026-06-11T23:11:26Z].

FossilOrigin-Name: b0f773e99eb45cde0953e4870a0a7436c35277c95146fdab3aa06ebbc076c79e

5 days agoWhen using a read-only WAL/SHM, handle a corrupt page size in the WAL
drh [Fri, 12 Jun 2026 12:15:42 +0000 (12:15 +0000)] 
When using a read-only WAL/SHM, handle a corrupt page size in the WAL
file correctly.
[bugs:/info/2026-06-11T22:20:03Z|Bug 2026-06-11T22:20:03Z].

FossilOrigin-Name: 09ab0a1bac4eb7de651f78cfd3027b452308da7e04c4ccd7f46c402c82fd6ca5

5 days agoAdd the --raw option to the dbtotxt command-line tool, for debugging.
drh [Fri, 12 Jun 2026 11:55:39 +0000 (11:55 +0000)] 
Add the --raw option to the dbtotxt command-line tool, for debugging.

FossilOrigin-Name: abfecc08209c9377b6762125b2372e4eb1ab56b4d0399467c8fbe5cfc11c806e

5 days agoFix a signed integer overflow that could occur in fts3 when processing corrupt databa...
dan [Fri, 12 Jun 2026 11:24:30 +0000 (11:24 +0000)] 
Fix a signed integer overflow that could occur in fts3 when processing corrupt database records. Bug [bugs:/info/2026-06-11T23:12:25Z | 2026-06-11T23:12:25Z].

FossilOrigin-Name: 978d04f051c06aff798f915b0774da19a0b4f89f9daee124f7e62b12afaaced8

5 days agoComment improvements on the ".ar -x" command of the CLI. No changes to code.
drh [Thu, 11 Jun 2026 23:11:14 +0000 (23:11 +0000)] 
Comment improvements on the ".ar -x" command of the CLI.  No changes to code.

FossilOrigin-Name: 5b939fb1a284088c4bd46adf517cf598816e2262cd77ee2d9caaab1cef2ce9a1

5 days agoFix harmless compiler warnings.
drh [Thu, 11 Jun 2026 22:48:16 +0000 (22:48 +0000)] 
Fix harmless compiler warnings.

FossilOrigin-Name: dd0c161fcd1619518cd4671d64afb6afeec44c140ec176ccb8616d381a88f42f

6 days agoFurther improvements to the ".ar" command of the CLI.
drh [Thu, 11 Jun 2026 16:39:41 +0000 (16:39 +0000)] 
Further improvements to the ".ar" command of the CLI.

FossilOrigin-Name: 6149b938c7a1e95a0fb8600a81557dd0e3efb7b312f3806e2c09d03acf9f4b17

6 days agoThree-pass algorithm for the ".ar x" command in the CLI, so that symlinks
drh [Thu, 11 Jun 2026 14:28:48 +0000 (14:28 +0000)] 
Three-pass algorithm for the ".ar x" command in the CLI, so that symlinks
are created after all regular files are created.

FossilOrigin-Name: 37a80d20fe1948db15ac72432ed7bf3d573c80807fe0a58c58440647e3c34ab8

6 days agoAdd the (undocumented) --debug option to the ".ar" command in the CLI
drh [Thu, 11 Jun 2026 14:14:37 +0000 (14:14 +0000)] 
Add the (undocumented) --debug option to the ".ar" command in the CLI

FossilOrigin-Name: 3a040ffc47fa3e38b36716587c56d9b071d9c69d9daaa9cf0ef6baa654419ab5

6 days agoImproved detection of corrupt node IDs in RTree shadow tables.
drh [Thu, 11 Jun 2026 01:31:19 +0000 (01:31 +0000)] 
Improved detection of corrupt node IDs in RTree shadow tables.
Test case in TH3.

FossilOrigin-Name: e01a185a699d0c4ad2341ce2114bc826f02768735cef67179a1127229a073d03

7 days agoWhen reading a super-journal name from a journal file, allocate a new buffer rather...
dan [Wed, 10 Jun 2026 20:10:19 +0000 (20:10 +0000)] 
When reading a super-journal name from a journal file, allocate a new buffer rather than using Pager.pTmpSpace. This prevents a buffer overrun that could occur when using a VFS with a large sqlite3_vfs.mxPathname value with a database with a small page size.

FossilOrigin-Name: 37aa82a50a0a1c5edb4c4f2de1cb00fa009ebbfeb420df3de72231c5d883518a

7 days agoFix a signed-integer overflow in fts5 that might occur when dealing with strategicly...
dan [Wed, 10 Jun 2026 16:51:20 +0000 (16:51 +0000)] 
Fix a signed-integer overflow in fts5 that might occur when dealing with strategicly corrupted records. Bug [bugs:/info/2026-06-10T03:56:42Z | 2026-06-10T03:56:42Z].

FossilOrigin-Name: fc6442ee54795fbeb746539193716238aa653d80170523bc327ae3ce0d945ebf

7 days agoDetect an OOM condition in the realpath() function of the fileio.c extension
drh [Wed, 10 Jun 2026 10:40:29 +0000 (10:40 +0000)] 
Detect an OOM condition in the realpath() function of the fileio.c extension
and cause that function to return NULL.  To Do:  we should go back in and
fix realpath() to raise an SQLITE_NOMEM error on OOM rather than returning
NULL.  But we will delay that, in as much as OOMs are all but impossible
on modern OSes.
[bug:/info/2026-06-10T07:46:32Z|Bug 2026-06-10T07:46:32Z].

FossilOrigin-Name: 8b961dc3d27c5aa62a5dc7c2e44f8b505817e184f8499f3bb903e06b5aec1b72

7 days agoFix a possible signed integer overflow in the RBU extension given a
drh [Wed, 10 Jun 2026 10:13:11 +0000 (10:13 +0000)] 
Fix a possible signed integer overflow in the RBU extension given a
maliciously crafted delta.
[bugs:/info/2026-06-10T06:41:54Z|Bug 2026-06-10T06:41:54Z].

FossilOrigin-Name: 8531c0c3b61771592b055b0c22e903b8301a4161c7bcb7f9fc54d730b080d095

7 days agoHarden code that processes Fossil Deltas against OOM and maliciously
drh [Wed, 10 Jun 2026 09:51:33 +0000 (09:51 +0000)] 
Harden code that processes Fossil Deltas against OOM and maliciously
malformed delta blobs.
[bugs:/info/2026-06-10T07:01:00Z|Bug 2026-06-10T07:01:00Z] and
[bugs:/info/2026-06-10T07:06:43Z|Bug 2026-06-10T07:06:43Z].

FossilOrigin-Name: 67271c31292bc1bddbb5e144c881c85c9f91b3963a1db4bae1f738adab50f7c0

8 days agoAvoid a possible integer overflow when fts5 tokenizes a very large document. Only...
dan [Tue, 9 Jun 2026 10:43:37 +0000 (10:43 +0000)] 
Avoid a possible integer overflow when fts5 tokenizes a very large document. Only possible with non-standard builds that use large values of SQLITE_MAX_LENGTH. Bug [bugs:/info/2026-06-09T05:27:16Z | 2026-06-09T05:27:16Z].

FossilOrigin-Name: d562e91374e2bebcf75a00776b4def532bb71914a07e37c8507f7a5918db1d3b

8 days agoChange loop counter variables from int to i64 to avoid a potential
drh [Tue, 9 Jun 2026 10:16:40 +0000 (10:16 +0000)] 
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

9 days agoFix builds on i486 CPUs. [forum:/info/2025-01-25T12:58:44Z|Forum 2025-01-25T12:58...
drh [Mon, 8 Jun 2026 18:15:27 +0000 (18:15 +0000)] 
Fix builds on i486 CPUs.  [forum:/info/2025-01-25T12:58:44Z|Forum 2025-01-25T12:58:44Z].

FossilOrigin-Name: 4cb349370daab17123770c814c71872a3e4c616a3f984569b3d7f97f9c3f5ea0

9 days agoFix another buffer overread in fts5 when processing corrupt records. Bug [bugs:/info...
dan [Mon, 8 Jun 2026 17:48:00 +0000 (17:48 +0000)] 
Fix another buffer overread in fts5 when processing corrupt records. Bug [bugs:/info/2026-06-08T16:03:39Z | 2026-06-08T16:03:39Z ].

FossilOrigin-Name: 8ba5acabf9a0273ffbc2ba0bacc7f0b000690db91081858e4e563d6cbeeb4e7a

9 days agoFix a buffer overread that could occur in fts5 when processing corrupt records. Bug...
dan [Mon, 8 Jun 2026 15:20:49 +0000 (15:20 +0000)] 
Fix a buffer overread that could occur in fts5 when processing corrupt records. Bug [bugs:/info/2026-06-08T11:15:52Z | 2026-06-08T11:15:52Z]

FossilOrigin-Name: b07441cfc06b8e6b47a4f4a6e0f5c261da580d5afe82444cc7f42a9f39ea7026

9 days agoAvoid a potential use-after-free in fts5. Report [bugs:/info/2026-06-08T08:45:27Z...
dan [Mon, 8 Jun 2026 12:03:52 +0000 (12:03 +0000)] 
Avoid a potential use-after-free in fts5. Report [bugs:/info/2026-06-08T08:45:27Z | 2026-06-08T08:45:27Z].

FossilOrigin-Name: 9c018b02dbfb071c748d540ad679a4dbdc0fb88a62988e02cb51a3403509febe

9 days agoClamp the nToken parameter to the fts5 snippet() function between 0 and 64. It has...
dan [Mon, 8 Jun 2026 11:24:05 +0000 (11:24 +0000)] 
Clamp the nToken parameter to the fts5 snippet() function between 0 and 64. It has always been documented this way, but not previously implemented. Report [bugs:/info/2026-06-08T08:29:00Z | 2026-06-08T08:29:00Z].

FossilOrigin-Name: 4af1d9b3e54a7c42552e61284456bbd7089e525d4aa55e580f7518956d8521bb

9 days agoAdd extra tests to check that non-deterministic functions may not be used in indexes.
dan [Mon, 8 Jun 2026 10:47:55 +0000 (10:47 +0000)] 
Add extra tests to check that non-deterministic functions may not be used in indexes.

FossilOrigin-Name: beeef9dc2b1d778ca628c5e3adc097778646933233ea5ea4f03d2cace0199c17

11 days agoImprovements to the GCC compiler bug work-around of check-in [7fae321095ebec77].
drh [Sat, 6 Jun 2026 18:32:53 +0000 (18:32 +0000)] 
Improvements to the GCC compiler bug work-around of check-in [7fae321095ebec77].

FossilOrigin-Name: 247894f70d8616cb16468025809513a7db70086d24d2a289b50b4e8d9e073eb4

11 days agoMinor performance enhancement and improved comments on the quicksort
drh [Sat, 6 Jun 2026 17:20:35 +0000 (17:20 +0000)] 
Minor performance enhancement and improved comments on the quicksort
algorithm used by the median() implementation in func.c.

FossilOrigin-Name: 2800f6a75bbb6ddc86f2e029a7d36ff08febe03812302fb7931eb68da316f74d

12 days agoA new approach to working around the GCC bug. gcc-bug-114659
drh [Fri, 5 Jun 2026 00:11:56 +0000 (00:11 +0000)] 
A new approach to working around the GCC bug.

FossilOrigin-Name: 2f95186ea568b27d45bd19fca1e03b878afb0b1ea0938875897c7323bdeab8a2

13 days agoDisable the vector-IN-SELECT optimization if the number of columns is so
drh [Thu, 4 Jun 2026 16:56:11 +0000 (16:56 +0000)] 
Disable the vector-IN-SELECT optimization if the number of columns is so
large that it would cause the WhereTerm.nChild column to wrap.
[bugs:/info/2026-06-04T10:00:49Z|Bug 2026-06-04T10:00:49Z].

FossilOrigin-Name: bb49dfc948048779a30deff9a3d1bb39846f6f72c26a2bdcdd0e386251720fe6

13 days agoFix a crash that could be caused by configuring the pager-cache with a bulk allocatio...
dan [Thu, 4 Jun 2026 11:48:18 +0000 (11:48 +0000)] 
Fix a crash that could be caused by configuring the pager-cache with a bulk allocation too small to fit even one page. Bug [bugs:/info/2026-06-04T07:03:12Z | 2026-06-04T07:03:12Z].

FossilOrigin-Name: b4b9dc632b06f932759bc2fceeb6fa1dd6e0de329106ae1d34be874ea1695859

13 days agoFix a possible NULL pointer derefence in the (experimental and untested)
drh [Thu, 4 Jun 2026 11:42:23 +0000 (11:42 +0000)] 
Fix a possible NULL pointer derefence in the (experimental and untested)
uuid.c extension.
[bugs:/info/2026-06-04T09:50:59Z|Bug 2026-06-04T09:50:59Z].

FossilOrigin-Name: fa6374fe3ae1530f0b5ba10b7e6fb703ffe5dd592c532a965e7d50b7d2d70a5f

13 days agoExtra testcase() macros to ensure adequate testing of the previous
drh [Thu, 4 Jun 2026 11:39:13 +0000 (11:39 +0000)] 
Extra testcase() macros to ensure adequate testing of the previous
check-in.

FossilOrigin-Name: 003013ccabaaa7aea1e78844474ed5032ee9c9824f98c5d36687ac5256a5e128

13 days agoFix problems with expressions like "(?,?,?) IN (SELECT c,b,a FROM ...)" when there...
dan [Thu, 4 Jun 2026 11:19:43 +0000 (11:19 +0000)] 
Fix problems with expressions like "(?,?,?) IN (SELECT c,b,a FROM ...)" when there is an index on columns "c", "b" and "a", but not in that order. Bug [bugs:/info/2026-06-04T07:02:53Z | 2026-06-04T07:02:53Z].

FossilOrigin-Name: 07667afd0f17b73b58df8ace6a2a5c3a593276f9b7804cb14d4705051258dd75

13 days agoClearly mark the ext/misc/wholenumber.c extension as "testing and
drh [Thu, 4 Jun 2026 11:18:11 +0000 (11:18 +0000)] 
Clearly mark the ext/misc/wholenumber.c extension as "testing and
debugging use only".  Fix a potential integer overflow that can occur
if the above warning is ignored.
[bugs:/info/2026-06-04T09:40:28Z|Bug 2026-06-04T09:40:28Z].

FossilOrigin-Name: 44154ea9ae99d532d5c7268d70bd8b32751f7a82c367c7bd1ec0e6948d71d1b8

2 weeks agoUpdate the utf-8 decoder in the ICU extension to treat invalid sequences as codepoint...
dan [Wed, 3 Jun 2026 17:21:12 +0000 (17:21 +0000)] 
Update the utf-8 decoder in the ICU extension to treat invalid sequences as codepoint 0xFFFD, matching the core. Report [bugs:/info/2026-06-03T04:04:46Z | 2026-06-03T04:04:46Z].

FossilOrigin-Name: 840be0ee62c0ba34f4916c382e2d07071bebd8ce7bca31deb1616869722bfa4d

2 weeks agoFix a faulty assert() in rtree that could fire when processing an unusually large...
dan [Wed, 3 Jun 2026 16:46:15 +0000 (16:46 +0000)] 
Fix a faulty assert() in rtree that could fire when processing an unusually large record. Bug [bugs:/info/2026-06-03T14:44:46Z | 2026-06-03T14:44:46Z].

FossilOrigin-Name: e7335dd377a73fc2b913076ee659ed2b0c4a131b16e04b1b55fae677d6b56e8a

2 weeks agoUse tail recursion on the larger of the two partitions when doing a
drh [Wed, 3 Jun 2026 16:21:17 +0000 (16:21 +0000)] 
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

2 weeks agoFix an integer overflow problem in fts3 that could lead to a buffer overwrite on...
dan [Wed, 3 Jun 2026 15:29:59 +0000 (15:29 +0000)] 
Fix an integer overflow problem in fts3 that could lead to a buffer overwrite on platforms where size_t is 32-bits. Bug [bugs:/info/2026-06-03T04:28:51Z | 2026-06-03T04:28:51Z].

FossilOrigin-Name: ef0c66d2a2e0b8f523633efca66a97236bb5a502525eb6a00a28a350ec7c76e6

2 weeks agoFix another buffer overread in fts5 that could occur when processing corrupt records...
dan [Wed, 3 Jun 2026 14:58:13 +0000 (14:58 +0000)] 
Fix another buffer overread in fts5 that could occur when processing corrupt records. Bug [bugs:/info/2026-06-03T03:54:40Z | 2026-06-03T03:54:40Z].

FossilOrigin-Name: b5337c87cc314e6830615e4efe2d4723fa7cedf87ce404f60d6e520aeab77cbc

2 weeks agoFix another potential buffer overrun that could occur in fts5 when processing corrupt...
dan [Wed, 3 Jun 2026 13:49:33 +0000 (13:49 +0000)] 
Fix another potential buffer overrun that could occur in fts5 when processing corrupt records.

FossilOrigin-Name: 6ee44b199512b8cac604bf062f893a9047af4b5bfc881bb7cb69ae42d0a0adb4

2 weeks agoFix a potential UAF bug in the zipfile extension.
drh [Wed, 3 Jun 2026 13:12:20 +0000 (13:12 +0000)] 
Fix a potential UAF bug in the zipfile extension.
[bugs:/info/2026-06-03T10:58:51Z|Bug 2026-06-03T10:58:51Z].

FossilOrigin-Name: 1fb5e9169ace6bea2bdf9013f39002c1ce5dc9ce51d6007bec22d91f456c15f0

2 weeks agoFix negative array index in "testing and debugging uses only" extension
drh [Wed, 3 Jun 2026 12:43:50 +0000 (12:43 +0000)] 
Fix negative array index in "testing and debugging uses only" extension
qpvtab.c.
[bugs:/info/2026-06-03T07:26:26Z|Bug 2026-06-03T07:26:26Z].

FossilOrigin-Name: d066699fcacd87496645f3aa3c4049935410ae2451879a033102304c80273deb

2 weeks agoAvoid excessive recursion and stack overflow in fts3 when processing a corrupt
dan [Wed, 3 Jun 2026 11:37:45 +0000 (11:37 +0000)] 
Avoid excessive recursion and stack overflow in fts3 when processing a corrupt
database.

FossilOrigin-Name: 21369378769195f20f839231f625582552eaa3f79044ca3e3efb7f9476b515a8

2 weeks agoThe prefix_length() function should stop at the first NUL terminator.
drh [Wed, 3 Jun 2026 11:07:47 +0000 (11:07 +0000)] 
The prefix_length() function should stop at the first NUL terminator.
[bugs:/info/2026-06-03T07:42:00Z|Bug 2026-06-03T07:42:00Z].

FossilOrigin-Name: a9b8bdea0683bb03015ea1ee38f75636c80c189eed4b786b6d3d654a831cfdfb

2 weeks agoMake the (unused, untested, and unsupported) ext/misc/compress.c routines
drh [Wed, 3 Jun 2026 10:55:08 +0000 (10:55 +0000)] 
Make the (unused, untested, and unsupported) ext/misc/compress.c routines
responsive to OOM conditions.
[bugs:/info/2026-06-03T08:28:36Z|Bug 2026-06-03T08:28:36Z].

FossilOrigin-Name: e3120e2a4339d51210645b14d075abba27dd97bd6bd6d42f445dd5baf3d337e3

2 weeks agoFix a case where sqlite3expert could be tricked into executing arbitrary SQL by a...
dan [Tue, 2 Jun 2026 15:20:37 +0000 (15:20 +0000)] 
Fix a case where sqlite3expert could be tricked into executing arbitrary SQL by a corrupt database schema.

FossilOrigin-Name: 8a633070e62bdc83a7cf895fd1a22c04b13579659df7cee9584d95096bfffab1

2 weeks agoAdd extra test case to zipfile.test. No code changes.
dan [Tue, 2 Jun 2026 11:11:02 +0000 (11:11 +0000)] 
Add extra test case to zipfile.test. No code changes.

FossilOrigin-Name: 83fe72bcdf866bdaf3043ae5b0c1eb45a9d50a01b24b7a531858271dd746baab

2 weeks agoFix the CLI so that it works when compiled using STDCALL on
drh [Tue, 2 Jun 2026 10:08:30 +0000 (10:08 +0000)] 
Fix the CLI so that it works when compiled using STDCALL on
Microsoft x86.  Change should not affect other platforms.
[forum:/info/2026-06-02T09:44:12Z|Forum 2026-06-02T09:44:12Z].

FossilOrigin-Name: 83adece349aed73b8d0a3aec141213ea329150eb529f4fd9774ca157b49d02fc

2 weeks agoEnhance PRAGMA integrity_check so that it better detects incorrect
drh [Mon, 1 Jun 2026 20:02:17 +0000 (20:02 +0000)] 
Enhance PRAGMA integrity_check so that it better detects incorrect
header sizes at the beginning of cells.

FossilOrigin-Name: 08bb2878e7575ab069f8f132537880a47a4d4543a1ac8bffc55e32488223245c

2 weeks agoDisable transitive WHERE constraints when there are explicit COLLATE operators. Fix...
dan [Mon, 1 Jun 2026 18:01:13 +0000 (18:01 +0000)] 
Disable transitive WHERE constraints when there are explicit COLLATE operators. Fix for report [bugs:/info/ffddcd3617 | 2026-05-31T08:33:10Z].

FossilOrigin-Name: 18ee3a17c589cfd34500b6a6547d0cb51aea4dd14b4e1e4b2d0cf0dbfb32378e

2 weeks agoMinor performance improvement for the patch on this branch. transitive-where-collate-bugs
dan [Mon, 1 Jun 2026 17:56:11 +0000 (17:56 +0000)] 
Minor performance improvement for the patch on this branch.

FossilOrigin-Name: 2702fecc5c47704bdae535459e59260b55c571ff3b7d09617541e36829d4cf9c

2 weeks agoFix minor problems surrounding transitive WHERE constraints and explicit COLLATE...
dan [Mon, 1 Jun 2026 17:40:23 +0000 (17:40 +0000)] 
Fix minor problems surrounding transitive WHERE constraints and explicit COLLATE terms.

FossilOrigin-Name: 9500238a1d603a3f08a8fc0954725d5d217aab339720146ea0bc700e47b81c3c

2 weeks agoMake sure the authenticator is called for columns that are part of
drh [Mon, 1 Jun 2026 16:49:39 +0000 (16:49 +0000)] 
Make sure the authenticator is called for columns that are part of
a USING in a FULL JOIN.
[bugs:/info/2026-05-31T02:00:37Z|Bug 2026-05-31T02:00:37Z].

FossilOrigin-Name: 4ef88a36f9d9669b0d74c58f79ad497803885ff6078e5f9685f13c96eab397cc

2 weeks agoFor expressions of the form "(x, y...) IN (SELECT a, b ...)" where the result is...
dan [Mon, 1 Jun 2026 16:20:40 +0000 (16:20 +0000)] 
For expressions of the form "(x, y...) IN (SELECT a, b ...)" where the result is not true, consider the collation sequences of columns "a" and "b" when determinining if the result should be false or NULL. Bug report [bugs:/info/0785f45e67 | 2026-05-31T02:10:44Z].

FossilOrigin-Name: 04d7a9d788cf0bb811483baceb9142f67d4a2380d4af409d5300a92f7972472e

2 weeks agoBetter handle a (possibly) potential buffer overrun in fts5. Based on the report...
dan [Mon, 1 Jun 2026 15:03:53 +0000 (15:03 +0000)] 
Better handle a (possibly) potential buffer overrun in fts5. Based on the report in [bugs:/info/38e75aa4f9 | 2026-05-31T09:06:13Z].

FossilOrigin-Name: 9d0e39408075f22dd56ad5fb50ef458c0cd6a4ec234dd43b3a5f5e0ac4447b61

2 weeks agoRemove the data type ANY added to the shell's CSV exports in [aff74e71ea734e1a],...
stephan [Mon, 1 Jun 2026 13:14:48 +0000 (13:14 +0000)] 
Remove the data type ANY added to the shell's CSV exports in [aff74e71ea734e1a], as discussed in [forum:2ea4c50f69fc9829|forum post 2026-06-01T12:01:59Z].

FossilOrigin-Name: a6a347aec5ff33b24d877ac0f04018f4e93748361da62ed27b1abec77840963e

2 weeks agoDo not allow the argument to a table-valued function to reference a table
drh [Mon, 1 Jun 2026 12:36:28 +0000 (12:36 +0000)] 
Do not allow the argument to a table-valued function to reference a table
to its right, even if the SELECT is inside a common table expression.
This is a replacement for the fix at [3c0a277e6741c722].  Fix
for multiple dbsqlfuzz reports and probably also a fix
for [bugs:/info/b6c6fad96c|Bug 2026-06-01T07:23:11Z].

FossilOrigin-Name: d96271db6a3a44e50d1a977250c4cc14178612a6c838e7c51c5f79fda45ae19f

2 weeks agoTest case to show that the change fixes the original carray problem. right-ref-cte
drh [Mon, 1 Jun 2026 12:30:13 +0000 (12:30 +0000)] 
Test case to show that the change fixes the original carray problem.

FossilOrigin-Name: 8df6671ae8211b706b7d4f073c5166f0f41f3c11339bc4d28997e8a205a39545

2 weeks agoImprovements to sqlite3SelectCheckOnClauses() to be more accurate in
drh [Mon, 1 Jun 2026 12:19:30 +0000 (12:19 +0000)] 
Improvements to sqlite3SelectCheckOnClauses() to be more accurate in
identifying table-valued functions that references tables to the right.

FossilOrigin-Name: e5bae3687dbb470ead7e8d6bf428b1fbb1e9f10c214bc2a91e93e68fb2ae6ff7

2 weeks agoBack out the recent change to carray. The intent is to fix this problem
drh [Mon, 1 Jun 2026 12:07:21 +0000 (12:07 +0000)] 
Back out the recent change to carray.  The intent is to fix this problem
in a different way so that it works for all table-valued functions.

FossilOrigin-Name: 43e02dbb0dbe7192304125cd3298b3f4bbac02395d4d03f7f8d5f96b465eb43e

2 weeks agoFix an integer overflow that could lead to a buffer overrun in the zipfile extension...
dan [Mon, 1 Jun 2026 11:52:23 +0000 (11:52 +0000)] 
Fix an integer overflow that could lead to a buffer overrun in the zipfile extension. Bug [bugs:/info/2026-06-01T10:16:47Z | 2026-06-01T10:16:47Z].

FossilOrigin-Name: a8dac6af353c02aed8eaaba5921e036d3f3a6639367ae70e8c75d759c7b4ab52

2 weeks agoUpdate new test in zipfile.test so that it does not run if SQLITE_MAX_LENGTH is too... zipfile-buffer-overrun
dan [Mon, 1 Jun 2026 11:50:55 +0000 (11:50 +0000)] 
Update new test in zipfile.test so that it does not run if SQLITE_MAX_LENGTH is too small.

FossilOrigin-Name: cc86820e198db6ee4e62f455d3dd9877d73873aaccad6ceffd0b34452d35c89c

2 weeks agoFix an integer overflow that could lead to a buffer overrun in the zipfile extension...
dan [Mon, 1 Jun 2026 10:56:11 +0000 (10:56 +0000)] 
Fix an integer overflow that could lead to a buffer overrun in the zipfile extension. Bug [bugs:/info/2026-06-01T10:16:47Z | 2026-06-01T10:16:47Z].

FossilOrigin-Name: 7c740d2cfd22a89258be2221860ca10985f0fc16dc7a17a99fc282d7105dc38e

2 weeks agoExtra defenses against integer overflows in the untested, unused, and
drh [Mon, 1 Jun 2026 10:53:28 +0000 (10:53 +0000)] 
Extra defenses against integer overflows in the untested, unused, and
unsupported transliterate() SQL extension function found in the
ext/misc/spellfix.c extension.
[bugs:/info/2026-06-01T10:34:57Z|Bug 2026-06-01T10:34:57Z].

FossilOrigin-Name: 2b073519b6080abc8872b0728c64827cc088d1b43f132cd2aeb396f06de3d36f

2 weeks agoFix the carray virtual table so that it gives no solution if it cannot
drh [Sun, 31 May 2026 19:41:16 +0000 (19:41 +0000)] 
Fix the carray virtual table so that it gives no solution if it cannot
find a usable first parameter.  dbsqlfuzz find.

FossilOrigin-Name: 3c0a277e6741c72281e12c44d85902aa6780890a7f59bacc3ac2b35ba27f7211

2 weeks agoTest case to cover the bug fix in the previous check-in.
drh [Sun, 31 May 2026 17:01:44 +0000 (17:01 +0000)] 
Test case to cover the bug fix in the previous check-in.

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