From: drh <>
Date: Fri, 15 May 2026 22:53:53 +0000 (+0000)
Subject: If there is a WHERE clause constraint of the form "a=$var" where the
X-Git-Url: http://git.ipfire.org/gitweb/index.cgi?a=commitdiff_plain;h=refs%2Fheads%2Fbranch-3.28;p=thirdparty%2Fsqlite.git

If there is a WHERE clause constraint of the form "a=$var" where the
value of $var affects the query plan, then
automatically reprepare the query if the binding of $var changes.

FossilOrigin-Name: ce5687795045cd9cca5f252c58c246a56975244ac17233c9081ca049f8a74b18
---

diff --git a/manifest b/manifest
index d2410e7e22..74c90757bb 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Improvements\sto\sthe\sscope\sof\svalueFromFunction().
-D 2024-09-18T18:04:30.307
+C If\sthere\sis\sa\sWHERE\sclause\sconstraint\sof\sthe\sform\s"a=$var"\swhere\sthe\nvalue\sof\s$var\saffects\sthe\squery\splan,\sthen\nautomatically\sreprepare\sthe\squery\sif\sthe\sbinding\sof\s$var\schanges.
+D 2026-05-15T22:53:53.240
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -604,7 +604,7 @@ F src/vxworks.h d2988f4e5a61a4dfe82c6524dd3d6e4f2ce3cdb9
 F src/wal.c 9eccc7ebb532a7b0fd3cabc16cff576b9afa763472272db67d84fb8cec96f5c0
 F src/wal.h 606292549f5a7be50b6227bd685fa76e3a4affad71bb8ac5ce4cb5c79f6a176a
 F src/walker.c 7607f1a68130c028255d8d56094ea602fc402c79e1e35a46e6282849d90d5fe4
-F src/where.c 7b276c3110231eebda4d537e32a560030762c2ce7dd44e8e89aa2898af04e263
+F src/where.c 291f0f9842b2a08af632f519fdc570366ba81ebdefcedfd070fa0ef1bfdc0e03
 F src/whereInt.h 064a1508edcc9af400a3b79211ba55e553fab6451b797a31334c0d11cbb7debb
 F src/wherecode.c cf67460973119c7b2141ad67daf8368dfb4871f225e2489f95effaa139007bfd
 F src/whereexpr.c cb357cf1efd04ae2be4a0d4cf5e0b04c1d666c55f6af72574f593b4a0cf549f6
@@ -631,7 +631,7 @@ F test/altertab2.test 5d423a2d1006085b05cc1b788863d5a860ea2da21c4f892d15e2f2a34c
 F test/altertab3.test 40f2ce9be675e354d3e55c72f8baf38813be975ff4dd9e6b3144493c3c5bc033
 F test/amatch1.test b5ae7065f042b7f4c1c922933f4700add50cdb9f
 F test/analyze.test 7168c8bffa5d5cbc53c05b7e9c7fcdd24b365a1bc5046ce80c45efa3c02e6b7c
-F test/analyze3.test ff62d9029e6deb2c914490c6b00caf7fae47cc85cdc046e4a0d0a4d4b87c71d8
+F test/analyze3.test c12b60a4e68011c007ea443c8bceceac7ecad0c7171773d354796d1ebebe6e94
 F test/analyze4.test cdf88f3f72b0f0643a1ff6c730fc5af1e42464d47478d9fbac84c333f72c014e
 F test/analyze5.test 765c4e284aa69ca172772aa940946f55629bc8c4
 F test/analyze6.test 7b2667b879976ac4b90d8df80d5456328684f1f6f6fdef9469d6e53401f2f469
@@ -1822,9 +1822,9 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 148d505ca08adcc776748d4d01fde022ab5add745d6b2573922a66e516b51681
-Q +a0f39419cb5bdfa42ab2978cf3819e3d7821212996571f8251d2efbeaa26c603
-R 1aec0b9a4c85c0e5c4b4a0fd66b01c71
+P b021399a6e93afbb3368a5ae94c0f29c97ec6603bf9a5b7f86ca63c94590c2c3
+Q +1249eeb1b9759038b6d10dcd8d65f64f81e8529b28e5e24f9fc5759e9a1c88a5
+R b2294ae4118fc8d25dba59e068bff76a
 U drh
-Z 252815416379df1b7cdbf62123df53d6
+Z c1379b57d27107cc84479ac3afe41efb
 # Remove this line to create a well-formed Fossil manifest.
diff --git a/manifest.tags b/manifest.tags
new file mode 100644
index 0000000000..5a37632f1b
--- /dev/null
+++ b/manifest.tags
@@ -0,0 +1,2 @@
+branch branch-3.28
+tag branch-3.28
diff --git a/manifest.uuid b/manifest.uuid
index 929717d03e..0283c01e3e 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-b021399a6e93afbb3368a5ae94c0f29c97ec6603bf9a5b7f86ca63c94590c2c3
+ce5687795045cd9cca5f252c58c246a56975244ac17233c9081ca049f8a74b18
diff --git a/src/where.c b/src/where.c
index 890fe91761..fe968a6f01 100644
--- a/src/where.c
+++ b/src/where.c
@@ -2274,7 +2274,7 @@ static void whereLoopOutputAdjust(
 ){
   WhereTerm *pTerm, *pX;
   Bitmask notAllowed = ~(pLoop->prereq|pLoop->maskSelf);
-  int i, j, k;
+  int i, j;
   LogEst iReduce = 0;    /* pLoop->nOut should not exceed nRow-iReduce */
 
   assert( (pLoop->wsFlags & WHERE_AUTO_INDEX)==0 );
@@ -2299,8 +2299,10 @@ static void whereLoopOutputAdjust(
         pLoop->nOut--;
         if( pTerm->eOperator&(WO_EQ|WO_IS) ){
           Expr *pRight = pTerm->pExpr->pRight;
+          Parse *pParse = pWC->pWInfo->pParse;
+          int k = 0;
           testcase( pTerm->pExpr->op==TK_IS );
-          if( sqlite3ExprIsInteger(pRight, &k, 0) && k>=(-1) && k<=1 ){
+          if( sqlite3ExprIsInteger(pRight, &k, pParse) && k>=(-1) && k<=1 ){
             k = 10;
           }else{
             k = 20;
diff --git a/test/analyze3.test b/test/analyze3.test
index b7b324a868..2b38d24919 100644
--- a/test/analyze3.test
+++ b/test/analyze3.test
@@ -409,7 +409,7 @@ do_test analyze3-3.4.1 {
 do_test analyze3-3.4.2 {
   sqlite3_bind_text $S 1 "abc" 3
   sqlite3_expired $S
-} {0}
+} {1}
 do_test analyze3-3.4.3 {
   sqlite3_bind_text $S 2 "def" 3
   sqlite3_expired $S