Handle "RETURNING rowid" clauses attached to INSERTs on views without causing an assert() to fail. Fixes dbsqlfuzz crash 0081f863d7b2002045ac2361879fc80dfebb98f1.

FossilOrigin-Name: 9c5b7386d013a7f22a93c69722c4648e2ab60eef180f48b5470bfea6fa74b3da

manifest

@@ -1,5 +1,5 @@
-C Further\simprovements\s(subsequent\sto\s[d91450847a3a3a72])\sto\shandling\sof\sattempts\nto\sdelete\sa\sjournal\susing\sthe\smemdb\sVFS.\ndbsqlfuzz\sac61dab357279a6a531de067f040e9a4828d2df0.
-D 2021-04-06T13:03:06.229
+C Handle\s"RETURNING\srowid"\sclauses\sattached\sto\sINSERTs\son\sviews\swithout\scausing\san\sassert()\sto\sfail.\sFixes\sdbsqlfuzz\scrash\s0081f863d7b2002045ac2361879fc80dfebb98f1.
+D 2021-04-06T13:53:10.506
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -503,7 +503,7 @@ F src/hash.c 8d7dda241d0ebdafb6ffdeda3149a412d7df75102cecfc1021c98d6219823b19
 F src/hash.h 9d56a9079d523b648774c1784b74b89bd93fac7b365210157482e4319a468f38
 F src/hwtime.h cb1d7e3e1ed94b7aa6fde95ae2c2daccc3df826be26fc9ed7fd90d1750ae6144
 F src/in-operator.md 10cd8f4bcd225a32518407c2fb2484089112fd71
-F src/insert.c f8d462ab6174a2c30476b5a1fc77f4d66ce7d9dd45c994966b9f4445db1131f0
+F src/insert.c e0a8c59cfcb3979170e413d17e85057754dca008935f316f2c502165640b4c61
 F src/legacy.c d7874bc885906868cd51e6c2156698f2754f02d9eee1bae2d687323c3ca8e5aa
 F src/loadext.c 8c9c8cd2bd8eecdb06d9b6e89de7e9e65bae45cc8fc33609cc74023a5c296067
 F src/main.c 2a7ece3a67c646e5fe9984ffe0277d6a76f80ce9715bf2faa591d8cb66b9d913
@@ -1297,7 +1297,7 @@ F test/releasetest.tcl fb76d8fcc95ac29d6356cd9e52b726ab9e43a24082897618dfbcb7c2b
 F test/releasetest_data.tcl 3d41ddb3f04f474ac9d925485da24ce6576ff0ebc4c7201c8a340bc09846c261
 F test/resetdb.test 8062cf10a09d8c048f8de7711e94571c38b38168db0e5877ba7561789e5eeb2b
 F test/resolver01.test f4022acafda7f4d40eca94dbf16bc5fc4ac30ceb
-F test/returning1.test 23dd8e28e69fb2f4e1a2173a241d5fb84846cac651096ad378980e4b7a79b434
+F test/returning1.test 3cfd13ace933d0ff6a8e5c7c5e48f14c2172ed65c8e7e7a4cf552ce261a986ab
 F test/rollback.test 06680159bc6746d0f26276e339e3ae2f951c64812468308838e0a3362d911eaa
 F test/rollback2.test 3f3a4e20401825017df7e7671e9f31b6de5fae5620c2b9b49917f52f8c160a8f
 F test/rollbackfault.test 0e646aeab8840c399cfbfa43daab46fd609cf04a
@@ -1912,7 +1912,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 8d46df73132e46abb32b9dc129b6beb978d34dac3d372fb004ca283b0832d04c
-R 34a91e01d98da9a038d058ca9e6ea654
-U drh
-Z b0363eb04a20da942cdbd023b5943bc6
+P a0839406426a0d8ec52cc3116ea7d8b582344b44f3f8c9365bbf5187370c3386
+R 1cd934283beb63a1aa322277384e9db9
+U dan
+Z 0886e616098964715b9c67539bffb339

manifest.uuid

@@ -1 +1 @@
-a0839406426a0d8ec52cc3116ea7d8b582344b44f3f8c9365bbf5187370c3386
+9c5b7386d013a7f22a93c69722c4648e2ab60eef180f48b5470bfea6fa74b3da

src/insert.c

@@ -1268,6 +1268,11 @@ void sqlite3Insert(
           regIns, aRegIdx, 0, appendFlag, bUseSeek
       );
     }
+  }else if( pParse->bReturning ){
+    /* If there is a RETURNING clause, populate the rowid register with
+    ** constant value -1, in case one or more of the returned expressions
+    ** refer to the "rowid" of the view.  */
+    sqlite3VdbeAddOp2(v, OP_Integer, -1, regRowid);
   }
 
   /* Update the count of rows that are inserted

test/returning1.test

@@ -189,4 +189,41 @@ do_catchsql_test 9.1 {
   UPDATE pragma_encoding SET encoding='UTF-8' RETURNING a, b, *;
 } {1 {table pragma_encoding may not be modified}}
 
+# dbsqlfuzz crash-0081f863d7b2002045ac2361879fc80dfebb98f1
+reset_db
+do_execsql_test 10.1 {
+  CREATE TABLE t1_a(a, b);
+  CREATE VIEW t1 AS SELECT a, b FROM t1_a;
+
+  INSERT INTO t1_a VALUES('x', 'y');
+  INSERT INTO t1_a VALUES('x', 'y');
+  INSERT INTO t1_a VALUES('x', 'y');
+
+  CREATE TABLE log(op, r, a, b);
+}
+do_execsql_test 10.2 {
+  CREATE TRIGGER tr1 INSTEAD OF INSERT ON t1 BEGIN
+    INSERT INTO log VALUES('insert', new.rowid, new.a, new.b);
+  END;
+  CREATE TRIGGER tr2 INSTEAD OF UPDATE ON t1 BEGIN
+    INSERT INTO log VALUES('update', new.rowid, new.a, new.b);
+  END;
+}
+
+do_execsql_test 10.3 {
+  INSERT INTO t1(a, b) VALUES(1234, 5678) RETURNING rowid;
+} {-1}
+
+do_execsql_test 10.3 {
+  UPDATE t1 SET a='z' WHERE b='y' RETURNING rowid;
+} {1 2 3}
+
+do_execsql_test 10.4 {
+  SELECT * FROM log;
+} {
+  insert -1 1234 5678 update 1 z y update 2 z y update 3 z y
+}
+
+
 finish_test
+