From: drh <>
Date: Mon, 15 Jun 2026 14:16:13 +0000 (+0000)
Subject: Better behavior for generate_series() in cases where constraints involve
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=0cdc6432f7ab07bf7d8006a7426f5f61e683b18d;p=thirdparty%2Fsqlite.git

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
---

diff --git a/ext/misc/series.c b/ext/misc/series.c
index 49afc658db..dea7301fd9 100644
--- a/ext/misc/series.c
+++ b/ext/misc/series.c
@@ -530,15 +530,22 @@ static int seriesFilter(
         iMin = iMax = sqlite3_value_int64(argv[iArg++]);
       }
     }else{
-      if( idxNum & 0x0300 ){  /* value>X or value>=X */
+      if( idxNum & 0x0300 ){  /* value>X (0x200) or value>=X (0x100) */
         if( sqlite3_value_numeric_type(argv[iArg])==SQLITE_FLOAT ){
           double r = sqlite3_value_double(argv[iArg++]);
-          if( r<(double)SMALLEST_INT64 ){
+          if( r<=(double)SMALLEST_INT64 ){
             iMin = SMALLEST_INT64;
-          }else if( (idxNum & 0x0200)!=0 && r==seriesCeil(r) ){
-            iMin = (sqlite3_int64)seriesCeil(r)+1;
+          }else if( r>(double)LARGEST_INT64 ){
+            goto series_no_rows;
           }else{
             iMin = (sqlite3_int64)seriesCeil(r);
+            if( iMin<0 && r>0.0 ){
+              iMin = LARGEST_INT64;
+            }
+            if( (idxNum & 0x0200)!=0 && r==seriesCeil(r) ){
+              if( iMin==LARGEST_INT64 ) goto series_no_rows;
+              iMin++;
+            }
           }
         }else{
           iMin = sqlite3_value_int64(argv[iArg++]);
@@ -551,15 +558,22 @@ static int seriesFilter(
           }
         }
       }
-      if( idxNum & 0x3000 ){   /* value<X or value<=X */
+      if( idxNum & 0x3000 ){   /* value<X (0x2000) or value<=X (0x1000) */
         if( sqlite3_value_numeric_type(argv[iArg])==SQLITE_FLOAT ){
           double r = sqlite3_value_double(argv[iArg++]);
-          if( r>(double)LARGEST_INT64 ){
+          if( r>=(double)LARGEST_INT64 ){
             iMax = LARGEST_INT64;
-          }else if( (idxNum & 0x2000)!=0 && r==seriesFloor(r) ){
-            iMax = ((sqlite3_int64)r)-1;
+          }else if( r<=(double)SMALLEST_INT64
+                 && ((idxNum & 0x2000)!=0 || r<(double)SMALLEST_INT64) ){
+            goto series_no_rows;
           }else{
             iMax = (sqlite3_int64)seriesFloor(r);
+            if( iMax<0 && r>0.0 ){
+              iMax = LARGEST_INT64;
+            }else if( (idxNum & 0x2000)!=0 && r==seriesFloor(r) ){
+              assert( iMax>SMALLEST_INT64 );
+              iMax--;
+            }
           }
         }else{
           iMax = sqlite3_value_int64(argv[iArg++]);
diff --git a/manifest b/manifest
index f044cb076d..730a88663a 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Avoid\sa\spossible\sbuffer\soverrun\sin\s32-bit\sbuilds\sof\sfts5\sthat\scould\soccur\swhen\sprocessing\scorrupt\srecords.\sBug\s[bugs:/info/2026-06-14T12:21:15Z\s|\s2026-06-14T12:21:15Z].
-D 2026-06-15T13:39:20.318
+C Better\sbehavior\sfor\sgenerate_series()\sin\scases\swhere\sconstraints\sinvolve\nfloating\spoint\snumber\sthat\sare\snear\sthe\sminimum\sand\smaximum\s64-bit\sinteger\nvalues.
+D 2026-06-15T14:16:13.474
 F .fossil-settings/binary-glob 61195414528fb3ea9693577e1980230d78a1f8b0a54c78cf1b9b24d0a409ed6a x
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
@@ -395,7 +395,7 @@ F ext/misc/randomjson.c ef835fc64289e76ac4873b85fe12f9463a036168d7683cf2b773e36e
 F ext/misc/regexp.c 378e6e84516952a4b9f3f4df88927f20e6538e2609f55b773ed78899dab8206e
 F ext/misc/remember.c add730f0f7e7436cd15ea3fd6a90fd83c3f706ab44169f7f048438b7d6baa69c
 F ext/misc/rot13.c 51ac5f51e9d5fd811db58a9c23c628ad5f333c173f1fc53c8491a3603d38556c
-F ext/misc/series.c 496f43bac9bad2ee2cea63fb5212036f30ad3003b4cd317d5c2d6f3ad7c7d264
+F ext/misc/series.c 1af4c480d479374ae6e6fa51742add28950d1fb97b597da7e78a2482706dc893
 F ext/misc/sha1.c 9a11826db885e8afd997c0a1b28bb799a43e462ef770ac33f19e744887c9c6fa
 F ext/misc/shathree.c fd22d70620f86a0467acfdd3acd8435d5cb54eb1e2d9ff36ae44e389826993df
 F ext/misc/showauth.c 732578f0fe4ce42d577e1c86dc89dd14a006ab52
@@ -1709,7 +1709,7 @@ F test/sync.test a619e407ede58a7b6e3e44375328628559fc9695a9c24c47cb5690a866b0031
 F test/sync2.test 06152269ed73128782c450c355988fe8dd794d305833af75e1a5e79edd4dae47
 F test/syscall.test a067468b43b8cb2305e9f9fe414e5f40c875bb5d2cba5f00b8154396e95fcf37
 F test/sysfault.test c9f2b0d8d677558f74de750c75e12a5454719d04
-F test/tabfunc01.test 7827c2dfd57a094125b059f51a2200eaf04d417af6b1e720c34a8cbf54e8a14f
+F test/tabfunc01.test 532087adcbf6774f1c550a73d30a4d18e9520a40ece7eb60f6fa38f29bcea5ad
 F test/table.test e87294bf1c80bfd7792142b84ab32ea5beb4f3f71e535d7fb263a6b2068377bf
 F test/tableapi.test e37c33e6be2276e3a96bb54b00eea7f321277115d10e5b30fdb52a112b432750
 F test/tableopts.test dba698ba97251017b7c80d738c198d39ab747930
@@ -2208,8 +2208,11 @@ F tool/warnings-clang.sh bbf6a1e685e534c92ec2bfba5b1745f34fb6f0bc2a362850723a9ee
 F tool/warnings.sh a554d13f6e5cf3760f041b87939e3d616ec6961859c3245e8ef701d1eafc2ca2
 F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
 F tool/winmain.c 00c8fb88e365c9017db14c73d3c78af62194d9644feaf60e220ab0f411f3604c
-P 4b3ec30c63e3824163a2e6cacceb9630301b61f3ffd2b80f8a7b234f09bc251b
-R 4268b2401575f05c1ef13d2885a2b3fd
-U dan
-Z 5f5badb8d3a0930043dc56d118952b6a
+P 0fa3345fe4464804f6846c2598774b9e700df39570e81e020de21e06e2ff044d
+R 420f1b91caadadd221bcb8d7b520cc55
+T *branch * series-boundry-cases
+T *sym-series-boundry-cases *
+T -sym-trunk *
+U drh
+Z accc4f998a9a8942d7566835deda0da0
 # Remove this line to create a well-formed Fossil manifest.
diff --git a/manifest.tags b/manifest.tags
index bec971799f..e45fe9bf77 100644
--- a/manifest.tags
+++ b/manifest.tags
@@ -1,2 +1,2 @@
-branch trunk
-tag trunk
+branch series-boundry-cases
+tag series-boundry-cases
diff --git a/manifest.uuid b/manifest.uuid
index f7e70d7153..fdac4ce365 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-0fa3345fe4464804f6846c2598774b9e700df39570e81e020de21e06e2ff044d
+236ef21789c4ebb67a8cf0a841341fab1477a6fe8e88b575e9f450a8f868e618
diff --git a/test/tabfunc01.test b/test/tabfunc01.test
index 9a3196600b..b7f7e8dc5f 100644
--- a/test/tabfunc01.test
+++ b/test/tabfunc01.test
@@ -716,6 +716,43 @@ do_catchsql_test 1420 {
   FROM t2 JOIN (t1 RIGHT JOIN generate_series(t2.y,5) AS value) 
 } {1 {no such column: t2.y}}
 
+# Bug 2026-06-15T04:37:48Z
+do_execsql_test 1500 {
+  SELECT value FROM generate_series(1) WHERE value>1e19 LIMIT 3;
+} {}
+do_execsql_test 1501 {
+  SELECT value FROM generate_series(1) WHERE value>=1e19 LIMIT 3;
+} {}
+do_execsql_test 1502 {
+  SELECT value FROM generate_series(1) WHERE value<-1e19 LIMIT 3;
+} {}
+do_execsql_test 1503 {
+  SELECT value FROM generate_series(1) WHERE value<=-1e19 LIMIT 3;
+} {}
+do_execsql_test 1504 {
+  SELECT value FROM generate_series(1,9223372036854775807)
+   WHERE value>=9223372036854775807.0
+   LIMIT 3;
+} {9223372036854775807}
+do_execsql_test 1505 {
+  SELECT value FROM generate_series(1,9223372036854775807)
+   WHERE value>9223372036854775807.0
+   LIMIT 3;
+} {}
+do_execsql_test 1506 {
+  SELECT 9223372036854774784 = 9223372036854775000.0;
+} {1}
+do_execsql_test 1507 {
+  SELECT value FROM generate_series(1,9223372036854775807)
+   WHERE value>=9223372036854775000.0
+   LIMIT 3;
+} {9223372036854774784 9223372036854774785 9223372036854774786}
+do_execsql_test 1508 {
+  SELECT value FROM generate_series(1,9223372036854775807)
+   WHERE value>9223372036854775000.0
+   LIMIT 3;
+} {9223372036854774785 9223372036854774786 9223372036854774787}
+
 
 # Free up memory allocations
 intarray_addr