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Fix date/time computations to deal with the sub-millisecond rounding

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problem identified in [forum:/forumpost/766a2c9231|forum post 766a2c9231].

FossilOrigin-Name: afb0a5923a6db4045fab5226198aab970d746d4866294ebba943c6986e97ecde
This commit is contained in:
drh
2025-01-21 17:37:58 +00:00
parent 8e7a16895c
commit 255548562b
4 changed files with 20 additions and 9 deletions
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14
manifest
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@@ -1,5 +1,5 @@
C Performance\simprovements\sto\sthe\s(debug-use\sonly)\sMem.pScopyFrom\slogic,\sresulting\nin\sabout\s8x\sfaster\sperformance\sunder\s-DSQLITE_DEBUG\sfor\sthe\squery\sin\sfrom\n[forum:/forumpost/0025389d0860af82|forum\spost\s0025389d0860af82].\s\sThis\schange\nonly\saffects\sbuilds\sthat\suse\s-DSQLITE_DEBUG.
D 2025-01-21T16:30:55.694
C Fix\sdate/time\scomputations\sto\sdeal\swith\sthe\ssub-millisecond\srounding\nproblem\sidentified\sin\s[forum:/forumpost/766a2c9231|forum\spost\s766a2c9231].
D 2025-01-21T17:37:58.001
F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
F LICENSE.md e108e1e69ae8e8a59e93c455654b8ac9356a11720d3345df2a4743e9590fb20d
@@ -725,7 +725,7 @@ F src/build.c c6b09342d870a509529244ed8e19b4175a261f2e3163c199241d69e1d8a57607
F src/callback.c acae8c8dddda41ee85cfdf19b926eefe830f371069f8aadca3aa39adf5b1c859
F src/complete.c a3634ab1e687055cd002e11b8f43eb75c17da23e
F src/ctime.c d35723024b963edce9c0fad5b3303e8bb9266083784844baed10a6dedfe26f3b
F src/date.c 89ce1ff20512a7fa5070ba6e7dd5c171148ca7d580955795bf97c79c2456144a
F src/date.c 842c08ac143a56a627b05ac51d68624f2b7b03e3b4cba596205e735eed64ee57
F src/dbpage.c e90410e5d4c0217dfddc4184a81e38ec4903c25d4ec0f201060a0e54e7c2099f
F src/dbstat.c 73362c0df0f40ad5523a6f5501224959d0976757b511299bf892313e79d14f5c
F src/delete.c 03a77ba20e54f0f42ebd8eddf15411ed6bdb06a2c472ac4b6b336521bf7cea42
@@ -1068,7 +1068,7 @@ F test/ctime.test 340f362f41f92972bbd71f44e10569a5cc694062b692231bd08aa6fe6c1c47
F test/cursorhint.test 05cf0febe5c5f8a31f199401fd1c9322249e753950d55f26f9d5aca61408a270
F test/cursorhint2.test 6f3aa9cb19e7418967a10ec6905209bcbb5968054da855fc36c8beee9ae9c42f
F test/dataversion1.test 6e5e86ac681f0782e766ebcb56c019ae001522d114e0e111e5ebf68ccf2a7bb8
F test/date.test c8ff835023f2107b57ce7a45c92265d51c98a23fc93231e998f12d850831aad6
F test/date.test 8911c3d9fb0e496e92e0259697f431a00707222d2b3438ce1105d1790a3c0d51
F test/date2.test 7e12ec14aaf4d5e6294b4ba140445b0eca06ea50062a9c3a69c4ee13d0b6f8b1
F test/date3.test a1b77abf05c6772fe5ca2337cac1398892f2a41e62bce7e6be0f4a08a0e64ae5
F test/date4.test 75dc8401e8c0639a228cd26a6eaa4ff5ea8ccda912b9853d1c9462c476670e17
@@ -2208,8 +2208,8 @@ F tool/version-info.c 3b36468a90faf1bbd59c65fd0eb66522d9f941eedd364fabccd7227350
F tool/warnings-clang.sh bbf6a1e685e534c92ec2bfba5b1745f34fb6f0bc2a362850723a9ee87c1b31a7
F tool/warnings.sh 49a486c5069de041aedcbde4de178293e0463ae9918ecad7539eedf0ec77a139
F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
P 753fd747f24c5e9a019eb00b8a4f66e65c6733ba10a7adbd1b55786867c32ca6
R f2e8145ad0d67966271c1c923a7301c7
P 7fb1ae25d1572dd7709a0f850c148a5f745a524f01ea231e29a1ebc37c173fb9
R b5ed3ff5cc6ba0a7bea1d83d8e8c82a9
U drh
Z 86ef734f24e1aa297cb586202f4cb17a
Z a3888b28f8eea48eee70a7de9cd84dd2
# Remove this line to create a well-formed Fossil manifest.

2
manifest.uuid
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@@ -1 +1 @@
7fb1ae25d1572dd7709a0f850c148a5f745a524f01ea231e29a1ebc37c173fb9
afb0a5923a6db4045fab5226198aab970d746d4866294ebba943c6986e97ecde

5
src/date.c
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@@ -222,6 +222,9 @@ static int parseHhMmSs(const char *zDate, DateTime *p){
zDate++;
}
ms /= rScale;
/* Truncate to avoid problems with sub-milliseconds
** rounding. https://sqlite.org/forum/forumpost/766a2c9231 */
if( ms>0.999 ) ms = 0.999;
}
}else{
s = 0;
@@ -1429,7 +1432,7 @@ static void strftimeFunc(
}
case 'f': { /* Fractional seconds. (Non-standard) */
double s = x.s;
if( s>59.999 ) s = 59.999;
if( NEVER(s>59.999) ) s = 59.999;
sqlite3_str_appendf(&sRes, "%06.3f", s);
break;
}

8
test/date.test
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@@ -651,5 +651,13 @@ datetest 19.51 {date('2000-08-31','+0022-06-00','floor')} {2023-02-28}
datetest 19.52 {date('2000-08-31','+0023-06-00','ceiling')} {2024-03-02}
datetest 19.53 {date('2000-08-31','+0022-06-00','ceiling')} {2023-03-03}
# 2025-01-21
# https://sqlite.org/forum/forumpost/766a2c9231
#
datetest 20.1 {datetime('2024-12-31 23:59:59.9990')} {2024-12-31 23:59:59}
datetest 20.2 {datetime('2024-12-31 23:59:59.9999999999999')} \
{2024-12-31 23:59:59}
datetest 20.3 {datetime('2024-12-31 23:59:59.9995')} {2024-12-31 23:59:59}
datetest 20.4 {datetime('2024-12-31 23:59:58.9995')} {2024-12-31 23:59:58}
finish_test