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26239 Commits

Author SHA1 Message Date
drh
48114d08cf Completely unwind the enhanced precision sum() from [a915f15a916af698] so 
as not to offend UBSAN and OSS-Fuzz.

FossilOrigin-Name: 85be05b66ef975f02a3e7b2984bcab97d9280c7f3b6ee1e16718de549f240d46
 2023-06-30 14:01:09 +00:00
drh
dd8b12a6c5 Omit the doubleToReal() function in vdbemem.c. Use the 
equivalent sqlite3RealToI64() function in its place.

FossilOrigin-Name: 625820e8ebfdcf513c81b1b632bbe2aa882a8fbba52001113dc6f56270fa5ceb
 2023-06-30 12:59:06 +00:00
drh
60f41362cf Make the sum() function less precise and slower in order to avoid 
harmless signed integer overflow UBSAN warnings from OSS-Fuzz.

FossilOrigin-Name: 1be0646a2c352dbf03d2af87fd48b6f9edfd68666790ac6863144ac95f3e0621
 2023-06-30 11:51:36 +00:00
drh
2ddfa6a360 Cleanup and commenting of the new DECIMAL extension code. No functional 
changes.

FossilOrigin-Name: 5124481663eb8e74a9f861be98adb7075ea911fcff0216d98c658e955acadf14
 2023-06-29 23:03:30 +00:00
drh
ec3e57fa92 Enhancements to the DECIMAL extension: 
(1) If the argument to decimal(X) is a floating point value (or an 8-byte blob),
the floating point value is expanded into its exact decimal representation.
(2) Function decimal_sci(X) works the same except it returns the result in
scientific notation.
(3) New function decimal_pow2(N) returns the full decimal expansion of the N-th
integer power of 2.

FossilOrigin-Name: 8baf8c10aecb261751f2b154356ab224b79d07230929ec9f123791278e601bba
 2023-06-29 20:28:03 +00:00
drh
500ca334bd Fix harmless compiler warnings about unused function arguments. 
FossilOrigin-Name: 24927c1377314a10177da4a57191593440aa97fd0c5949fdf25a22df1d947600
 2023-06-29 17:48:32 +00:00
drh
0b1a1e8c37 Improve the range of floating-point numbers that can be handled as integers 
for numeric-to-text conversion.

FossilOrigin-Name: 41580ba452fdbc3f73da60d8030289d38614c4cab8d24140d7cc44a54b2da8d2
 2023-06-29 17:36:18 +00:00
drh
a75011a891 Further refine the dtostr() testing function in the CLI so that it takes an 
optional second parameter which is the number of significant digits to display.

FossilOrigin-Name: 2f9d4444aa503102a00d6e6769dadc57d4b26a2c07f145f23f2f28e0c161246d
 2023-06-29 17:26:21 +00:00
drh
cd88a74115 Change the (undocumented) dtostr() SQL function in the CLI so that it only 
shows the first 26 significant digits - 10 more digits than are available
in a 64-bit double.

FossilOrigin-Name: d758859f6ab94ddb9b3ee6f6f5f24b16e2b7a7712761080cfc6540d68b5a0c97
 2023-06-29 16:48:25 +00:00
drh
9ea7632cca Add the decimal_sci(X) function to the Decimal extension for showing a decimal 
value in scientific notation:  +D.DDDDDe+DD

FossilOrigin-Name: 61d4923913e88b980ce93db4f3f9f9d7ba3baaac724995c36c9b887c034accdc
 2023-06-29 14:49:23 +00:00
drh
7f5fe1faf3 CLI enhancements to facilitate SQLite core testing: 
(1) Add built-in functions strtod() and dtostr() that convert text to
floating point and back using C-library routines.
(2) Do not disable all of ".testctrl" without --unsafe-testing, but only
those subcommands of .testctrl that are actually dangerous.

FossilOrigin-Name: 669996a8ddcbf35f3de66cf466508fc1e6dd09ab269aba395ac86a11b2ec238c
 2023-06-29 12:14:10 +00:00
drh
8fbb335d9f Enhance the SUM() aggregate (and related AVG() and TOTAL()) so that the running 
sum is accurate to about 100 bits.

FossilOrigin-Name: a915f15a916af698e0cef46c8b3e7ed11bda19349179d2d414073cd39c4cce24
 2023-06-28 12:02:48 +00:00
drh
60783f47b2 Improved accuracy of floating-point conversion constants as suggested by 
[forum:/info/598d32f6135c41c1|forum post 598d32f6135c41c1].

FossilOrigin-Name: 4943e8a1819e189747eefc414d02c0485e1620deff9cf92664295b21a8a9a83c
 2023-06-28 11:46:28 +00:00
drh
d847c73153 Simple test cases for the enhanced SUM() function. 
FossilOrigin-Name: c66ef2440e4e6c7aa17b50e5a29e543713ccab69aa0a415bac29b35b6116504a
 2023-06-26 19:57:23 +00:00
drh
12b198f1a2 Use ideas from T. J. Dekker in "A Floating-Point Technique for Extending the 
Available Precision" (1971-07-26) to enhance the accuracy of the SUM()
aggregate function in cases where input magnitudes vary wildly.

FossilOrigin-Name: 439fc00fee62b4db3751860485e21a99cae4fd1f5d911b2c08651a1466245ecc
 2023-06-26 19:35:20 +00:00
larrybr
502c618f01 Fix CLI .sha3sum error message for keyword identifiers, reported in [forum:/forumpost/7cbe081746dd|forum post 7cbe081746dd]. 
FossilOrigin-Name: 9d7813ddcf67f1256e7331c5f390cb122b3f7e35cf46e0b33b610216a5396a00
 2023-06-26 17:08:08 +00:00
stephan
b9561384d0 Replace some JS 'self' references with 'globalThis', as reported via the npm subproject. 
FossilOrigin-Name: d4e66dfc2e87112fa73a9c64db358429d88fb2ab3a08908b0eb655f6ed42f94b
 2023-06-26 07:05:05 +00:00
drh
d2b9cdd592 Fix typo in the README.md file. 
FossilOrigin-Name: 6d435d1dace1be52bdb920168e629412b9adf55dbe59cf3db8f169c26f6e6b81
 2023-06-25 20:23:51 +00:00
drh
cc19bed8b1 Add support for the octet_length() SQL function, with low-level optimizations 
that avoid loading large string content from disk when the argument to
octet_length() is a table column.

FossilOrigin-Name: fa5f77862c0fe0189aa4246a1e55bb7c537c28c436ec10b75f5fa141e5e4aff0
 2023-06-23 11:10:13 +00:00
drh
077efc2730 Optimize the argument to the octet_length() function so that it does not 
attempt to read content from disk.

FossilOrigin-Name: 8b8ea4e3f52d96cc217bd1fb27ca4a83489ef1f250756ed2f790d1b0ee529a3a
 2023-06-22 21:19:37 +00:00
drh
7f9dcd664d basic test cases for octet_length(). 
FossilOrigin-Name: 034a5fe2a0cfe085271385da1d281515b04b311e08962519d03ad8ad156fb4bd
 2023-06-22 15:26:52 +00:00
drh
d6c671e626 Merge recent trunk enhancements into the octet_length branch. 
FossilOrigin-Name: d35c214811aac7dec0000ca2aa77231f74a7963dd0c53cf25a65ade5ef0f8dc0
 2023-06-22 13:01:02 +00:00
drh
d4170ac0eb Simplification to the getAndInitPage() routine that results in improved 
performance.

FossilOrigin-Name: 2e9734c2335d8c06fedc9f4cca02baaf326f7fa276bd464f3214f383715a48d6
 2023-06-22 01:03:39 +00:00
drh
71aac8763f Improved comment on the getAndInitPage() in btree.c. No code changes. 
FossilOrigin-Name: dc468cfdb825083b3a4b6cb95c913961e9312e22103c5a0cd923b75c83c65e13
 2023-06-21 21:47:09 +00:00
drh
3a202be6f1 Add the --pcachetrace option to the CLI. 
FossilOrigin-Name: 61dfa92b44ad38a7aac76a09e167819ce5d0acace3e06ba9ed17b3264cc043c1
 2023-06-21 14:11:25 +00:00
drh
40ee72947e Omit unnecessary calls to table locking routines in the common case when 
there is no shared cache.

FossilOrigin-Name: f94f3021cde1d46373ee8fc8e5028d7507a937240c59cf0d0d19ab22acbd3c41
 2023-06-20 17:45:19 +00:00
drh
c439b9e0c6 Avoid unnecessary calls to sqlite3DeleteTable() with NULL pointers. 
FossilOrigin-Name: 4a35f391995a88757d7b46f52bf241f523ee2a6a7b6726df00cddaec8cee7080
 2023-06-20 16:26:52 +00:00
drh
f6e04b6e29 Avoid unnecessary calls to sqlite3CodeRowTrigger(). 
FossilOrigin-Name: 27c174dbd0e7ba029d13fb005fc950ac99eb6aee31903ee3acfc88c262d13f6a
 2023-06-20 15:48:24 +00:00
drh
bcc76bd419 Performance optimization in sqlite3VdbeAddOp4Int(). 
FossilOrigin-Name: 456a24324bd42e1e3384ffa8474b7d0760b27df95be0e92ddce5eb87339f6272
 2023-06-20 11:46:32 +00:00
drh
f82c8cb0d5 Avoid unnecessary NULL pointer checks on calls to sqlite3WalkExpr(). 
FossilOrigin-Name: 73d86a12fb068456a884c030fddd87020d6ec9d56376de541cf082b2104174d3
 2023-06-19 23:27:22 +00:00
drh
1e24dc987a Small performance improvement and size reduction by recognizing that no 
SQL keywords have less than 2 characters.

FossilOrigin-Name: 6b3d25b7982623ab4b25161aff9ab44778e136069043ab425543597c42c98ae5
 2023-06-19 20:54:49 +00:00
drh
1be61ad278 Fix large integer constants so that they work on older C compilers. 
FossilOrigin-Name: 3c94f87806a8b408d8204fc7deec16d01c085ee199ff21a1f20b6346ce816cfe
 2023-06-19 13:09:16 +00:00
drh
8e5cef7bca Fix harmless compiler warnings that show up on 32-bit RaspberryPI builds. 
FossilOrigin-Name: bc4d20f362925e4ce5c79f0d7a27a8e9bbac92525bd4cea2ae983798e3f8c37d
 2023-06-17 15:42:44 +00:00
drh
0587a1a8bb In date/time functions, fix the rendering of "subsecond" and the 
computeHMS() routine to better deal with floating point
rounding errors that arise on some 32-bit systems.

FossilOrigin-Name: e46a00ae880dd12df090105498a85017d1367f88bf27d86f0b0200cf0536a906
 2023-06-17 15:22:00 +00:00
drh
56a410741b Address various harmless compiler warnings from 
[forum:/forumpost/d526da8ee4|forum post d526da8ee4].

FossilOrigin-Name: 365caf2f97e8f15842f52536e8d05d359e9d6e863182e020ce14a9a9f27ee057
 2023-06-16 14:39:21 +00:00
drh
2e4d526996 Fix the pager such that if the xOpen() message sends back the SQLITE_OPEN_MEMORY 
flag, the pager is opened in journal-mode MEMORY, even if compiled with
SQLITE_OMIT_DESERIALIZE.  No changes to the logic as long as that OMIT flag
is omitted.  We need to better document the behavior of xOpen to describe this.

FossilOrigin-Name: da1252b29852191eccbea98e0314408c75bb83a51f9d68d589705d4971a23850
 2023-06-16 11:05:49 +00:00
drh
f025fc164d Updates to the README.md file. 
FossilOrigin-Name: fa5cb6dab52dcf853854ad12922a125b9a5f898362e883bb31b2f789c632288b
 2023-06-15 16:02:19 +00:00
drh
733ef7e8e6 Fix harmless typo in a comment. 
FossilOrigin-Name: 6937986a687e4afea39168702f3a29aef0d60cebff024edab30d1aecfe159065
 2023-06-15 15:43:08 +00:00
drh
0c04f2e576 Work around what appears to be a GCC 32-bit optimization problem in the 
computeHMS() routine of the date/time logic.

FossilOrigin-Name: aebdbcbebff1319dd00551c9fb9ad4b08859f10e87f097295d564ae1ba188c02
 2023-06-14 12:19:07 +00:00
drh
e30ecbfb84 Improved sqlite3_error_offset() values for bare column errors on '*' and 
'table.*' expressions in SELECT statements.

FossilOrigin-Name: 118fe600876686273f85d0a080a21267e83c11826365f3220336b1bd39562518
 2023-06-13 18:10:52 +00:00
drh
d34ce81867 Extended the time-diff format so that it can have a 5-digit year. This enables 
time differences to span the full range of dates supported by SQLite.  Also
fix some inaccuracies in the computation of time differences and add new
test cases.

FossilOrigin-Name: d57ddbf4eeeb3ccfe31871f098045b9e58634153a3c3030f597cb58c1177218a
 2023-06-13 16:55:24 +00:00
drh
d97e0d0e38 Initialize a local variable in FTS3 to avoid a GCC compiler warning. 
FossilOrigin-Name: 7ec4ab327decd6a5ee5e6a53f1489e17e0cdbb297945f9acc532b47d052eb7a9
 2023-06-12 18:22:34 +00:00
dan
16702ec69d Fix a problem causing bloom filters to be used less efficiently than they might be. Problem reported by forum post [forum:/info/06c3f01da6 | 06c3f01da6]. 
FossilOrigin-Name: 56d9bb7aa63043f5db4a1e5e8eefe46762dba433145807c6e27a8316f1d03d7a
 2023-06-12 13:49:37 +00:00
drh
997670f997 Check-in [70e12efd1b189560] left a path through lockBtree() that failed to 
set the BTS_PAGESIZE_FIXED flag.  That omission is fixed by this check-in.
dbsqlfuzz 02c9ab74eb0619c9ae3b894ce157fae1d7f94645

FossilOrigin-Name: 30dcc872eb1c9549708009c86357826c4f15ffa17e379dab5cd4aec596643728
 2023-06-12 13:31:20 +00:00
dan
d679f9e5d1 Fix a buffer over-read that could occur as part of an fts5 secure-delete operation on a database containing corrupt fts5 records. 
FossilOrigin-Name: a35c50eca907d0cf373b7962c359aebfce8ac7c34ce81edeb99122d4fb5804f7
 2023-06-12 11:06:57 +00:00
drh
26d71f03fc Make sure temporary sqlite3_value objects used by STAT4 are reset to NULL prior 
to being reused, to prevent a memory leak associated with
the custom xDel string value destructor.
dbsqlfuzz 65209ab5d5730e4fd14fff9d024325a77239036e.

FossilOrigin-Name: 88be7075cdc7000d3a1e84e49064cf8c28fc7caca9c464f44a83265223961b51
 2023-06-11 21:58:20 +00:00
drh
b102d62749 Defer setting the BTS_PAGESIZE_FIXED flag until after we are certain there 
are no errors and the page size has been set.

FossilOrigin-Name: 70e12efd1b189560e07f59db03a20b8c1ab19224aae4fc3d7c0bdfd2568064ea
 2023-06-10 19:33:02 +00:00
drh
26e136bb9a Fix an assert that can go bad if STAT4 content is corrupt. This is a 
follow-up to the previous check-in.

FossilOrigin-Name: ac1d3860af4eb30e4a7444b01d7b5afc91a4b1f5e3fe5414a491c6edc7ff1631
 2023-06-10 18:40:20 +00:00
drh
04b92471f7 Extra space to prevent a buffer overread on corrupt STAT4 records. 
dbsqlfuzz 7128d1b41ce9df2c007f9c24c1e89e2f1b2590ca.

FossilOrigin-Name: b99135288b157044e2319833e8632c89483778f876aa45ee66e46ffb6ae42ab2
 2023-06-10 17:05:05 +00:00
drh
6bbc5b3730 Enhance fuzzcheck so that it understand the sqlite3_db_config() and 
optimization settings from unused bits in the database header, which
dbsqlfuzz is now using.

FossilOrigin-Name: 918708c6dea5bffab4bb1c15d655ac7356bae97b84def905479dfcf491db6c5f
 2023-06-10 10:37:49 +00:00
drh
7520116441 Simplify a memcpy() in defragmentPage(). It now might copy more content than 
is strictly necessary, but runs faster and uses less code space.  Possible
reasons for the improved performance:
(1) the copy is now always 8-byte aligned,
(2) fewer intermediate results are required which means less register
pressure which helps the compiler to optimize the subroutine.

FossilOrigin-Name: 6e5607ae4d872954483a8d7a5c866aa41e4af70fae9652fb7eb211b316ab724d
 2023-06-09 15:54:18 +00:00
dan
6e4ff8707e Remove SQLITE_EXTENSION_INIT macros from dbdata.c. 
FossilOrigin-Name: 106ec745766ac59131f975d5ab5487c8a24b9c3be1766411c018b42c6ae4672a
 2023-06-08 20:49:25 +00:00
drh
2f764eb4f4 Improvements to the src-verify.c utility program so that it continues to 
muddle through a corrupt manifest file, making the most sense of it that it
can and reporting "manifest" has having changed at the end.

FossilOrigin-Name: 157b5d25e0c99eabfa3c32cb867fe7e3c05031c12354f734d2cd8a4062b9439c
 2023-06-08 16:19:21 +00:00
drh
8efe749ab3 Fix the amagamation generator so that it works one a clean source tree. 
FossilOrigin-Name: f502610d03a1362eea936129abd03390835b7e47ba25e6799b2e7880de540640
 2023-06-08 15:30:10 +00:00
drh
fd5d18045a Include source provenance in the header comment of the amalgamation. 
FossilOrigin-Name: e3eb5af9050aae1db6887d17a560a24e4ca58f232ad7ac7c283c861ea4944f0b
 2023-06-08 15:27:35 +00:00
drh
4fa5952090 Enhance Lemon so that it remembers which -D command-line options are actually 
used in the grammar and includes a list of all such options in the header
of the generated output file.

FossilOrigin-Name: c47a4dbd24b8277c57b7a83a8c0aeac2bc8f6ab75d1b65ba5e1fa83d1868d95f
 2023-06-08 12:52:28 +00:00
larrybr
4eda84a456 Add spell-checking for all comments in main sources. (./src/ .c .h .in) make target "misspell" tells of misspelled words for which no exceptions have been put into tool/custom.txt . 
FossilOrigin-Name: 5332abf0ad8ef42c44e9dd7045d017bb8fc9a0262a89ababa3e2c41788a6cdb8
 2023-06-07 23:10:40 +00:00
larrybr
55be21647e Fix straggler misspellings and tidy the custom dictionary. Also include pickups from [forum:/info/c61fb09afd|forum post c61fb09afd]. 
FossilOrigin-Name: 8c291d99946eb32b20b743921202f9c7cfb716268ff526817b27adbb7942e40b
 2023-06-07 17:03:22 +00:00
drh
c5a5a54c51 Remove additional traces of FTS1 and FTS2 that were missed by [2bb50d5aedef0fd2] 
FossilOrigin-Name: 9a12bac5d24c7a8364d2127fd12c3409a53ef83e408d10f344ddd311cdba98af
 2023-06-07 15:00:54 +00:00
drh
1d7c88bf98 Remove unused, legacy shell script "mkso.sh" from the root of the repo. 
FossilOrigin-Name: 57f75e48690bdeb9b6bb3f46eee39021e3eb8cc0c488d2584177baa11ac984e5
 2023-06-07 14:47:29 +00:00
larrybr
bc91738e66 Add a C-source spell-checking facility. make misspell (on Nix) 
FossilOrigin-Name: 26c1bb4bd9e9f56613c3aa87407a7f562fd4ebde5bfd6dece02078001d9a45f8
 2023-06-07 08:40:31 +00:00
drh
25e87ed1ba Fix compiler warning in src-verify.c. 
FossilOrigin-Name: 2d58c77448cfaaf12887b60bcfea039d3410a750ac8955a817c45be85c00eb9e
 2023-06-05 17:12:33 +00:00
drh
4246a4bf14 Update the README.md file to talk about the verify-source makefile target. 
FossilOrigin-Name: aa8e79e16abf028d50370ae13b6c952a7b7f42985125bc8e7f51b20a10bfc336
 2023-06-05 13:57:37 +00:00
stephan
dc608d8a5f Remove extraneous console trace output from previous check-in. 
FossilOrigin-Name: c9f6e36d59fc8bf2bcef6fc14ff2e9ad3dfd972de94d4a71ff3f56134810a8ef
 2023-06-05 11:30:50 +00:00
stephan
c81dcaabe8 Add a JS test confirming that binding of statement parameters in a subquery works. 
FossilOrigin-Name: 5dfaf0bce83c3e15ad605e3f07291ce219f1a2726ce77be27779897088ee13d5
 2023-06-05 11:26:59 +00:00
drh
706047470e Generalize the src-verify.c utility program and provide additional documentation 
in the header comment.

FossilOrigin-Name: 7ed84046ef0c2c64031cac3a3a6b43aac3ac40aeb36838d8d046493f2d5ed122
 2023-06-05 01:05:46 +00:00
mistachkin
59714faa68 Minor cosmetic normalizations for the MSVC makefile. 
FossilOrigin-Name: c9fda8d6dba36841415d0f445b4081b051bfaa70428b605ac0b9ca4ae98f7d49
 2023-06-05 00:57:38 +00:00
drh
979715bb45 Fix harmless compiler warnings in tool/src-verify.c 
FossilOrigin-Name: 0e79ee97b18792dba9213bd9961f53e2bae765ac92df7963703d08857da74fd1
 2023-06-04 22:59:20 +00:00
drh
10ca116b3e Enhancement to tool/src-verify.c to also check the manifest.uuid file. 
FossilOrigin-Name: a39a569482a35610fdaa2fdfc88491d8b456dfedb4786c817e0502eb3e3a5563
 2023-06-04 22:56:31 +00:00
drh
63329ce6c7 Add a prototype implementation for the "verify-source" Makefile target. 
FossilOrigin-Name: ed876ff6a1a6a2d555f32b96eb78d95eaf8428ee189f968c43f0829a3065bfa7
 2023-06-04 22:41:52 +00:00
drh
b3d7f1c2db Prototype implementation of the octet_length() SQL function. 
FossilOrigin-Name: 2db989c8635f7e89b3ea58d1fde94787fced039ac1a118d9b6362811eda73f87
 2023-06-03 11:22:30 +00:00
larrybr
f1967a7018 Clarify sqlite3_is_interrupted() return. No code change. 
FossilOrigin-Name: b6c2d3d203100a34335aeba23a8fb82a13297b65eed494d5044ade3bed683bc3
 2023-06-02 21:31:15 +00:00
drh
038158e94a Restore the LEFT JOIN strength reduction that was partially lost in 
[d747afda5683ca5f] when strength reduction was generalized to all OUTER JOINs.

FossilOrigin-Name: 2d962b84dd8ac2d0968f0283f8f082c1c2a7a1f99b59053b2ad8f58745396447
 2023-06-02 18:05:54 +00:00
larrybr
a3f943942c Do that last CLI fix more simply, using established means. 
FossilOrigin-Name: a1823b297616bc2bd64eda9df4850fb460d8da8959ae3728195db896d1f89e7b
 2023-06-02 13:31:12 +00:00
larrybr
4e8a0eb4e7 Fix CLI fault on missing -nonce reported by [forum:/info/f8c14a1134|forum post f8c14a1134]. 
FossilOrigin-Name: cd24178bbaad4a1dafc3848e7d74240f90030160b5c43c93e1e0e11b073c2df5
 2023-06-02 12:56:32 +00:00
drh
4ffcce88ad Fix the OUTER JOIN strength reduction theorem prover's handling of the CASE 
operator.

FossilOrigin-Name: 73d7b14b1713d93c4ae07995e9aa6485cbad90bd6125584dbaeccb0cc9410ea3
 2023-06-02 00:03:28 +00:00
drh
179c32cb57 Generalize the LEFT JOIN strength reduction optimization so that it works for 
RIGHT and FULL JOIN as well.  Rename it to the "OUTER JOIN strength reduction"
optimization.

FossilOrigin-Name: d747afda5683ca5feb92866a14ccc4c5127d3378ece5cad2c3da819f2477b457
 2023-06-01 20:38:22 +00:00
drh
39a7a1a9be If the filename argument to sqlite3_load_extension() is an empty string, then 
raise an error.  It turns out that if dlopen() is called with an empty
filename, it tries to load the current executable.  And then if the caller
requests some other function from the current executable, mischief can result.

FossilOrigin-Name: d01688554715eb4aaa1b1fd1a6b660b84e930edb0e062156ecf5228ee81ca754
 2023-06-01 16:40:28 +00:00
drh
f96148c4c6 Add an ALWAYS() on an unreachable branch. 
FossilOrigin-Name: a00928d48061c1169d5564996e19e7d7c2b962842100bb119846d0f696123c23
 2023-06-01 00:28:11 +00:00
drh
e411b69537 Fix the LEFT JOIN strength reduction for IN operators in the WHERE clause. 
Further simplifications and refinement of the algorithm.

FossilOrigin-Name: 96c72dde79d4069f6c2f81467a35b617633f86f7a7dcafbda991affdaa1f8537
 2023-06-01 00:01:20 +00:00
drh
d8cf688469 Add a comment to explain why both sides of an AND must be non-null-row in order 
for the overall expression to be non-null-row.  No code changes.

FossilOrigin-Name: 8396032ce14a75f408f0a75bcb36a6504d5188f20886e275746a2c336a74296f
 2023-05-31 18:52:46 +00:00
drh
29e70da4a4 Improved detection of when the LEFT JOIN strength reduction optimization 
can be applied.

FossilOrigin-Name: f544a8e47cdd5ad7233887a558489983f4f305a39391ff463c43e2e4157da087
 2023-05-31 18:35:12 +00:00
drh
d3b54d624f Minor enhancement to the sqlite3_trace_v2() documentation. No code 
changes.

FossilOrigin-Name: fba97230e38276f2a02fc24353c3d911dfa24f3a4f75f691de9461d4daf3ae54
 2023-05-31 12:42:09 +00:00
dan
d8091fe979 Fix a problem causing an infinite loop in the recovery extension when processing a corrupt free-block list. 
FossilOrigin-Name: 5a516c6c7a25cec4d0a0cca530017a3299f7a332319f3e1f7cf12f53c32b88ca
 2023-05-31 11:03:17 +00:00
drh
8eb9c06e65 Enhancements to date/time functions: 
(1) Add support for time-shift modifiers of the form (+|-)YYYY-MM-DD HH:MM:SS.SSS
(2) Add the timediff(A,B) SQL function that returns the time-shift modifier
sufficient to move B to A.

FossilOrigin-Name: 574bf370b0b9a72eb0468e0e121d4d6171fc533883b66d335f6794ef5ee1f051
 2023-05-30 16:40:42 +00:00
drh
7d65f1bec0 Simplifications to the new timediff() logic. 
FossilOrigin-Name: d6954259bd3f8475f3804fd02a1591d037efa9df54da45776863c024ff90e596
 2023-05-30 14:46:30 +00:00
stephan
73d806dc1f Minor tweak to the OPFS async proxy to attempt to account for a spurious high-load console error message which was reported via the sqlite-wasm npm project. 
FossilOrigin-Name: a61467d1fbb7a2804bfdc685a38e0b738747b9afd42c25a78a938b114a822f61
 2023-05-30 14:10:28 +00:00
stephan
e32fef1400 Minor internal JS doc fix. No code changes. 
FossilOrigin-Name: 68abee3c1bf4e9ff632fccaa6ac7c5c4cdf55c4ff1749830ae3bd5ff6d55ebb2
 2023-05-30 13:27:57 +00:00
drh
cc4bfd9623 New test cases for the timediff enhancements. 
FossilOrigin-Name: f14633ce6ddf28a14b03e2da623d96e439966aa3fc30c26cb0be59c0e15b3e9c
 2023-05-30 11:51:45 +00:00
drh
30bb082d3a All date/time modifiers of the form (+/-)YYYY-MM-DD without the following 
HH:MM:SS.SSS.

FossilOrigin-Name: fa9237a8ab803ca3f67fe753516b7bdb98be3d625e8e241ddf9b02509210e225
 2023-05-30 11:13:56 +00:00
drh
36a5f1e90c Problems fixed. All tests are passing now. 
FossilOrigin-Name: cff293b0a79107def7bfe54fd60ac4a721c5098c85229d9b46a4e2c4cbf34a6a
 2023-05-30 02:50:32 +00:00
drh
6abbef89e6 Improvements to the timediff() function. Test cases added. Not all test 
cases are passing.

FossilOrigin-Name: 2cf6518140d61e2123dc20f39d7e97e7bce17e7641405df7fd63e1cdda444ae0
 2023-05-30 02:16:33 +00:00
drh
1936a1933c New date/time modifier: (+|-)YYYY-MM-DD HH:MM(:SS.SSS)? 
FossilOrigin-Name: 3832b8a9ef84d9b53b48dfce9c1e724897cd7b3e05711e01675419655f894eac
 2023-05-29 20:33:33 +00:00
drh
0cbc2143b9 Prototype implementation of a proposed "timediff(X,Y)" SQL function. 
FossilOrigin-Name: 054a195125a273bab026ada5f07cc7c32818007027a1fd028ca59d2f179276d4
 2023-05-29 18:01:42 +00:00
drh
4308b88dcd Fix an issue with sqldiff reported by 
[forum:/info/9bd2155bdfae25a7|forum post 9bd2155bdfae25a7].

FossilOrigin-Name: 736a79c1491065f4ee77ce644af0e529e555ca733c78dbd55487d55d4ddbe5bd
 2023-05-27 20:08:23 +00:00
dan
870fe69c72 Add extra tests for fts5, large rowids and "ORDER BY rowid DESC". No changes to code. 
FossilOrigin-Name: b5b5eaeed3ef55415e27aa04561ab446f3be881b56b7cbf9b8ba3307f0b2bf69
 2023-05-27 19:34:46 +00:00
stephan
39bd6a0d46 Add ability for the JS Worker1.exec() API to report the number of changes made to the caller, per request in [forum:d0b19483642e20dd | forum post d0b19483642e20dd]. 
FossilOrigin-Name: 6e79505df915612b60696e4eec5c9973175fe6ecf273eb3152b996e63ae54a07
 2023-05-25 16:49:06 +00:00
stephan
4e8e33ba84 Minor cleanups in demo JS code, per forum feedback. 
FossilOrigin-Name: 80c7c0360c08bea0733deccb8071920c60558b75df76b6afad093c82adf30ea6
 2023-05-23 19:11:42 +00:00
dan
583a5cf5d2 Avoid performing aggregate processing more than once for a single expression. [forum:/info/36ff78b2a3|Forum post 36ff78b2a3]. 
FossilOrigin-Name: 367b4cc549a14222d54530538e692e9d1a365002c1b8c4ef80ddc0523bfdb3a2
 2023-05-23 17:35:18 +00:00
drh
ddf6b27579 When converting an aggregate expression to AGG_COLUMN, be sure to remove 
the EP_Unlikely flag if it is present.
[forum:/info/fbfe330a2009d036|Forum post fbfe330a2009d036].

FossilOrigin-Name: 48e65f18b2ebbe786e84e208f2c6c68de6067ba86912fea5a120fd41d0af2184
 2023-05-23 15:16:20 +00:00