Avoid an assert() failure that could occur in SQLITE_ENABLE_UPDATE_DELETE_LIMIT builds when a WITH clause attached to an UPDATE or DELETE statement created a CTE of the same name as the table being modified.

FossilOrigin-Name: 8edf56d1698c3db38250db3b25864f658488414efb3a6b3e1443283b6affd26d

manifest

@@ -1,5 +1,5 @@
-C Fix\stwo\sassert()\sstatements\sthat\sfailed\sto\stake\sinto\saccount\nthe\slikely()\sbuilt-in\sfunction.\s\sThis\sdoes\snot\simpact\sproduction\scode.
+C Avoid\san\sassert()\sfailure\sthat\scould\soccur\sin\sSQLITE_ENABLE_UPDATE_DELETE_LIMIT\sbuilds\swhen\sa\sWITH\sclause\sattached\sto\san\sUPDATE\sor\sDELETE\sstatement\screated\sa\sCTE\sof\sthe\ssame\sname\sas\sthe\stable\sbeing\smodified.
-D 2023-05-17T00:26:50.636
+D 2023-05-17T11:31:51.631
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -585,7 +585,7 @@ F src/ctime.c 20507cc0b0a6c19cd882fcd0eaeda32ae6a4229fb4b024cfdf3183043d9b703d
 F src/date.c aca9e0c08b400b21238b609aea7c09585396cd770985cf8f475560f69222dad3
 F src/dbpage.c f3eea5f7ec47e09ee7da40f42b25092ecbe961fc59566b8e5f705f34335b2387
 F src/dbstat.c ec92074baa61d883de58c945162d9e666c13cd7cf3a23bc38b4d1c4d0b2c2bef
-F src/delete.c a9c6d3f51c0a31e9b831e0a0580a98d702904b42d216fee530940e40dec34873
+F src/delete.c cf07b5585823e3fd4d89e6ff49f6e705bf25b62366e69a5c9f1b23482e005aa3
 F src/expr.c 6d9805e35595304bf996c509d00fe4e9f316479e9d78bc93d3aa3dbfbcbf43de
 F src/fault.c 460f3e55994363812d9d60844b2a6de88826e007
 F src/fkey.c 03c134cc8bffe54835f742ddea0b72ebfc8f6b32773d175c71b8afeea6cb5c83
@@ -701,7 +701,7 @@ F src/threads.c 4ae07fa022a3dc7c5beb373cf744a85d3c5c6c3c
 F src/tokenize.c 1305797eab3542a0896b552c6e7669c972c1468e11e92b370533c1f37a37082b
 F src/treeview.c 1d52fbc4e97161e65858d36e3424ea6e3fc045dd8a679c82b4b9593dc30de3bd
 F src/trigger.c ad6ab9452715fa9a8075442e15196022275b414b9141b566af8cdb7a1605f2b0
-F src/update.c 3f4fb5ad7c9b48d7911974d6579192bb3a6c27f46140b6cbb9139cc8a77b8691
+F src/update.c 88f30d38409ddcd2d583bef1a1265a3e8c701e232096505183680b2027439a00
 F src/upsert.c 5303dc6c518fa7d4b280ec65170f465c7a70b7ac2b22491598f6d0b4875b3145
 F src/utf.c ee39565f0843775cc2c81135751ddd93eceb91a673ea2c57f61c76f288b041a0
 F src/util.c d4bcb560471cd94e6e17d448311f8d5bf81a7e5276295a53501058ef1b95dd1a
@@ -1914,7 +1914,7 @@ F test/whereM.test 0dbc9998783458ddcf3cc078ca7c2951d8b2677d472ecf0028f449ed327c0
 F test/wherefault.test 6cf2a9c5712952d463d3f45ebee7f6caf400984df51a195d884cfb7eb0e837a7
 F test/wherelfault.test 9012e4ef5259058b771606616bd007af5d154e64cc25fa9fd4170f6411db44e3
 F test/wherelimit.test afb46397c6d7e964e6e294ba3569864a0c570fe3807afc634236c2b752372f31
-F test/wherelimit2.test 657a3f24aadee62d058c5091ea682dc4af4b95ffe32f137155be49799a58e721
+F test/wherelimit2.test b9e4bfe7b4d7c2f85f99cf2bd2c51369378d04b1f3d1b60557423752003bfd90
 F test/widetab1.test c296a98e123762de79917350e45fa33fdf88577a2571eb3a64c8bf7e44ef74d1
 F test/win32heap.test 10fd891266bd00af68671e702317726375e5407561d859be1aa04696f2aeee74
 F test/win32lock.test e0924eb8daac02bf80e9da88930747bd44dd9b230b7759fed927b1655b467c9c
@@ -2070,8 +2070,8 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 7874023cd460cbe05401433b8e695a77955e2c055c360a93b92d4ce6937bd136
+P 8504fe812c5b4956c8acad515d537add54cb591bc81747113f9b24526d7685b8
-R 31e7a7527768476764afd8df7142eebb
+R a156a5c1f0ce2693a70c2ded17a1465f
-U drh
+U dan
-Z a1b1030006cdd91ae6edcfa132d3b400
+Z 386ca9e89e2e385e79c01ecd02e713f0
 # Remove this line to create a well-formed Fossil manifest.

manifest.uuid

@@ -1 +1 @@
-8504fe812c5b4956c8acad515d537add54cb591bc81747113f9b24526d7685b8
+8edf56d1698c3db38250db3b25864f658488414efb3a6b3e1443283b6affd26d

src/delete.c

@@ -35,6 +35,7 @@ Table *sqlite3SrcListLookup(Parse *pParse, SrcList *pSrc){
   pTab = sqlite3LocateTableItem(pParse, 0, pItem);
   sqlite3DeleteTable(pParse->db, pItem->pTab);
   pItem->pTab = pTab;
+  pItem->fg.notCte = 1;
   if( pTab ){
     pTab->nTabRef++;
     if( pItem->fg.isIndexedBy && sqlite3IndexedByLookup(pParse, pItem) ){

src/update.c

@@ -224,7 +224,7 @@ static void updateFromSelect(
 
   assert( pTabList->nSrc>1 );
   if( pSrc ){
-    pSrc->a[0].fg.notCte = 1;
+    assert( pSrc->a[0].fg.notCte );
     pSrc->a[0].iCursor = -1;
     pSrc->a[0].pTab->nTabRef--;
     pSrc->a[0].pTab = 0;

test/wherelimit2.test

@@ -299,5 +299,35 @@ do_test 5.5 {
   set ::log
 } {ax a bx b cx c dx d ex a}
 
+#-----------------------------------------------------------------------
+reset_db
+do_execsql_test 6.0 {
+  CREATE TABLE t2(x);  
+  INSERT INTO t2(x) VALUES(1),(2),(3),(5),(8),(13);
+} {}
+
+do_execsql_test 6.1 {
+  WITH t2 AS MATERIALIZED (VALUES(5))
+  DELETE FROM t2 ORDER BY rank()OVER() LIMIT 2;
+}
+
+do_execsql_test 6.2 {
+  SELECT * FROM t2;
+} {3 5 8 13}
+
+#-------------------------------------------------------------------------
+
+do_execsql_test 7.0 {
+  CREATE TABLE t1(a INT); INSERT INTO t1(a) VALUES(0);
+} {}
+
+do_execsql_test 7.1 {
+  WITH t1(b) AS (SELECT * FROM (SELECT * FROM (VALUES(2))))
+  UPDATE t1 SET a=3 LIMIT 1;
+}
+
+do_execsql_test 7.2 {
+  SELECT * FROM t1;
+} {3}
 
 finish_test