Fix an unnecessarily restrictive assert() in the aggregate logic.

dbsqlfuzz 699bee2aa26c5dc84afabf6894685c316d936485

FossilOrigin-Name: 8cc0af81ad03ac65f230d78cf97e1448c2d93d556467ea3ef700d5abd4a3890c

diff --git a/manifest b/manifest
index 14fd1b90e26d0a96e69b0f4e91fd62cece531163..1cad7ec4fd9ef65d2b14c2cac2c7e0e62c6e74f7 100644 (file)
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Remove\sslew\sof\sinadvertant\stabs\sin\sfavor\sof\sspaces.
-D 2022-12-17T19:56:28.185
+C Fix\san\sunnecessarily\srestrictive\sassert()\sin\sthe\saggregate\slogic.\ndbsqlfuzz\s699bee2aa26c5dc84afabf6894685c316d936485
+D 2022-12-17T22:10:05.452
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -595,7 +595,7 @@ F src/date.c 94ce83b4cd848a387680a5f920c9018c16655db778c4d36525af0a0f34679ac5
 F src/dbpage.c f1a87f4ebcf22284e0aaf0697862f4ccfc120dcd6db3d8dfa3b049b2580c01d8
 F src/dbstat.c a56a7ad1163a9888d46cd5820be2e65354fb1aa04ed6909f7c3e5831e0ee2c29
 F src/delete.c 86573edae75e3d3e9a8b590d87db8e47222103029df4f3e11fa56044459b514e
-F src/expr.c 6dc067ab8244627d62d0d81bd9d9cc78173325cf2fe3f494f0a65a418ce2b9f8
+F src/expr.c dcf31acfea9a9ae305c30d46179e7b06a8478e9ea202ac0c828cc42903fb1874
 F src/fault.c 460f3e55994363812d9d60844b2a6de88826e007
 F src/fkey.c 722f20779f5342a787922deded3628d8c74b5249cab04098cf17ee2f2aaff002
 F src/func.c 7e86074afc4dc702691a29b7801f6dcc191db092b52e8bbe69dcd2f7be52194d
@@ -2067,8 +2067,8 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P b4281db4e4762773684d27b809ef911da08b81cb953b3666e535b990d4d5f701
-R 85402c8273d834f748a67a241cd58b10
-U larrybr
-Z ebd46fda67ba8ed883a528cec7a4021a
+P 0aa6da69e12e483b5561bb9a054ec27a99f51772340c950783e342e6dd39beb9
+R 110ca66bc767d30b7b2e917b396a8f6b
+U drh
+Z bedbc6af2f074499f6cbab2d3d0d6e50
 # Remove this line to create a well-formed Fossil manifest.

diff --git a/manifest.uuid b/manifest.uuid
index 0ddfeee96996981e60b019ecf1d22bfd3b1958f6..611864f46e69b608dbd64fb0ed383b99bc2b15b4 100644 (file)
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-0aa6da69e12e483b5561bb9a054ec27a99f51772340c950783e342e6dd39beb9
\ No newline at end of file
+8cc0af81ad03ac65f230d78cf97e1448c2d93d556467ea3ef700d5abd4a3890c
\ No newline at end of file

diff --git a/src/expr.c b/src/expr.c
index b1ccde4afd2626adfce44a0947ffee5465d38b33..d12457a8162ea7768d0f039aaa38fbf06e42f349 100644 (file)
--- a/src/expr.c
+++ b/src/expr.c
@@ -6247,10 +6247,8 @@ int sqlite3ReferencesSrcList(Parse *pParse, Expr *pExpr, SrcList *pSrcList){
 ** it does, make a copy.  This is done because the pExpr argument is
 ** subject to change.
 **
-** The copy is stored on pParse->pConstExpr with a register number of 0.
-** This will cause the expression to be deleted automatically when the
-** Parse object is destroyed, but the zero register number means that it
-** will not generate any code in the preamble.
+** The copy is scheduled for deletion using the sqlite3ExprDeferredDelete()
+** which builds on the sqlite3ParserAddCleanup() mechanism.
 */
 static int agginfoPersistExprCb(Walker *pWalker, Expr *pExpr){
   if( ALWAYS(!ExprHasProperty(pExpr, EP_TokenOnly|EP_Reduced))
@@ -6261,7 +6259,6 @@ static int agginfoPersistExprCb(Walker *pWalker, Expr *pExpr){
     Parse *pParse = pWalker->pParse;
     sqlite3 *db = pParse->db;
     if( pExpr->op!=TK_AGG_FUNCTION ){
-      assert( pExpr->op==TK_AGG_COLUMN || pExpr->op==TK_IF_NULL_ROW );
       assert( iAgg>=0 && iAgg<pAggInfo->nColumn );
       if( pAggInfo->aCol[iAgg].pCExpr==pExpr ){
         pExpr = sqlite3ExprDup(db, pExpr, 0);