Ensure that the YYYY-MM-DD input to date and time functions has been normalized

prior to returning a result.
[forum:/forumpost/6bb476897e|Forum post 6bb476897e].

FossilOrigin-Name: b692eb8ccb2d0645599ad73a8bdacf5df499114244aadeb38aabc580fc4dc7c5

manifest

@@ -1,5 +1,5 @@
-C Expose\scontext_db_handle()\sto\sthe\sJNI\swrapper1\sAPI\sand\sclean\sup\ssome\srelated\stests.
+C Ensure\sthat\sthe\sYYYY-MM-DD\sinput\sto\sdate\sand\stime\sfunctions\shas\sbeen\snormalized\nprior\sto\sreturning\sa\sresult.\n[forum:/forumpost/6bb476897e|Forum\spost\s6bb476897e].
-D 2023-11-04T16:01:13.004
+D 2023-11-04T21:44:00.659
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -670,7 +670,7 @@ F src/build.c 189e4517d67f09f0a3e0d8e1faa6e2ef0c2e95f6ac82e33c912cb7efa2a359cc
 F src/callback.c db3a45e376deff6a16c0058163fe0ae2b73a2945f3f408ca32cf74960b28d490
 F src/complete.c a3634ab1e687055cd002e11b8f43eb75c17da23e
 F src/ctime.c 23331529e654be40ca97d171cbbffe9b3d4c71cc53b78fe5501230675952da8b
-F src/date.c eebc54a00e888d3c56147779e9f361b77d62fd69ff2008c5373946aa1ba1d574
+F src/date.c 3b8d02977d160e128469de38493b4085f7c5cf4073193459909a6af3cf6d7c91
 F src/dbpage.c 80e46e1df623ec40486da7a5086cb723b0275a6e2a7b01d9f9b5da0f04ba2782
 F src/dbstat.c 3b677254d512fcafd4d0b341bf267b38b235ccfddbef24f9154e19360fa22e43
 F src/delete.c cb766727c78e715f9fb7ec8a7d03658ed2a3016343ca687acfcec9083cdca500
@@ -1016,7 +1016,7 @@ F test/ctime.test 340f362f41f92972bbd71f44e10569a5cc694062b692231bd08aa6fe6c1c47
 F test/cursorhint.test 05cf0febe5c5f8a31f199401fd1c9322249e753950d55f26f9d5aca61408a270
 F test/cursorhint2.test 6f3aa9cb19e7418967a10ec6905209bcbb5968054da855fc36c8beee9ae9c42f
 F test/dataversion1.test 6e5e86ac681f0782e766ebcb56c019ae001522d114e0e111e5ebf68ccf2a7bb8
-F test/date.test c0d17cdfd89395bc78087b131e3538d96f864b5029c335318011accc7c0d0934
+F test/date.test ff2341a1ef71b9a27979494d299222f9a293aa22cb9ff6e9c38d88a895317ebf
 F test/date2.test 7e12ec14aaf4d5e6294b4ba140445b0eca06ea50062a9c3a69c4ee13d0b6f8b1
 F test/date3.test a1b77abf05c6772fe5ca2337cac1398892f2a41e62bce7e6be0f4a08a0e64ae5
 F test/date4.test 8aeb3de5b5e9fda968baa9357e4c0fae573724b7904943410195a19e96e31b6a
@@ -2142,8 +2142,8 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 40ad3920673561a06edf0b70a50a40be6cd20817fe22b87b63a9ac80cb2c9df8
+P c23123af7d40dea24a0848dff987fd58a6703ce04165060533544db85983d566
-R f79739ffe6d4cd3ba58087c1ffb0d1f9
+R 0a52dbd298d991529b412673e9dc7eb5
-U stephan
+U drh
-Z 05734d404abe66e6e03def34a1d0d490
+Z 33b6056e932d878d8676b163d8b94db2
 # Remove this line to create a well-formed Fossil manifest.

manifest.uuid

@@ -1 +1 @@
-c23123af7d40dea24a0848dff987fd58a6703ce04165060533544db85983d566
+b692eb8ccb2d0645599ad73a8bdacf5df499114244aadeb38aabc580fc4dc7c5

src/date.c

@@ -1043,6 +1043,12 @@ static int isDate(
   }
   computeJD(p);
   if( p->isError || !validJulianDay(p->iJD) ) return 1;
+  if( argc==1 && p->validYMD && p->D>28 ){
+    /* Make sure a YYYY-MM-DD is normalized.
+    ** Example: 2023-02-31 -> 2023-03-03 */
+    assert( p->validJD );
+    p->validYMD = 0;  
+  }
   return 0;
 }
 

test/date.test

@@ -146,6 +146,8 @@ datetest 2.49 {datetime('2003-10-22 12:24','0000 second')} {2003-10-22 12:24:00}
 datetest 2.50 {datetime('2003-10-22 12:24','0001 second')} {2003-10-22 12:24:01}
 datetest 2.51 {datetime('2003-10-22 12:24','nonsense')} NULL
 
+datetest 2.60 {datetime('2023-02-31')} {2023-03-03 00:00:00}
+
 datetest 3.1 {strftime('%d','2003-10-31 12:34:56.432')} 31
 datetest 3.2.1 {strftime('pre%fpost','2003-10-31 12:34:56.432')} pre56.432post
 datetest 3.2.2 {strftime('%f','2003-10-31 12:34:59.9999999')} 59.999
@@ -452,6 +454,9 @@ datetest 13.31 {date('2001-01-01','+1.5 years')} {2002-07-02}
 datetest 13.32 {date('2002-01-01','+1.5 years')} {2003-07-02}
 datetest 13.33 {date('2002-01-01','-1.5 years')} {2000-07-02}
 datetest 13.34 {date('2001-01-01','-1.5 years')} {1999-07-02}
+datetest 13.35 {date('2023-02-28')} {2023-02-28}
+datetest 13.36 {date('2023-02-29')} {2023-03-01}
+datetest 13.37 {date('2023-04-31')} {2023-05-01}
 
 # Test for issues reported by BareFeet (list.sql at tandb.com.au)
 # on mailing list on 2008-06-12.