Fix a problem with "ON DELETE RESTRICT" and "ON UPDATE RESTRICT" foreign keys in attached databases scanning child tables in the wrong schema.

FossilOrigin-Name: 04d5b637f087520cd58211505f9b5c086ff96d864a1908f60464b6fe22c62b7d

manifest

@@ -1,5 +1,5 @@
-C Cherry\spick\ssubroutine\sindentation\simprovements\sand\sthe\shardening\sof\nOP_Gosub\sfrom\sthe\sright-join\sbranch\sback\sinto\strunk.
-D 2022-04-14T19:48:32.540
+C Fix\sa\sproblem\swith\s"ON\sDELETE\sRESTRICT"\sand\s"ON\sUPDATE\sRESTRICT"\sforeign\skeys\sin\sattached\sdatabases\sscanning\schild\stables\sin\sthe\swrong\sschema.
+D 2022-04-16T15:46:23.749
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -505,7 +505,7 @@ F src/dbstat.c 861e08690fcb0f2ee1165eff0060ea8d4f3e2ea10f80dab7d32ad70443a6ff2d
 F src/delete.c a8e844af211a48b13b5b358be77a12c860c6a557c21990ad51a548e2536500ce
 F src/expr.c 38a25dcba22bc6c9d8614e64624497aab1762911ba88e81fc55f1e67a85ebc16
 F src/fault.c 460f3e55994363812d9d60844b2a6de88826e007
-F src/fkey.c 94927f9b46d72a9cb858c208febf04ceb0a3270c5fa5fd0b7f436cf16e09f72a
+F src/fkey.c d965ede15d8360c09ed59348940649ee647b192e784466837d7aefa836d1d91e
 F src/func.c a3407a6fbb0d4088d8d502e46f0ace63e0aeae7467ae23a9ca9815bbf9239761
 F src/global.c e83ee571b79ee3adc32e380cf554cf1254bc43763d23786c71721fbcdfbbb965
 F src/hash.c 8d7dda241d0ebdafb6ffdeda3149a412d7df75102cecfc1021c98d6219823b19
@@ -920,7 +920,7 @@ F test/fkey4.test 86446017011273aad8f9a99c1a65019e7bd9ca9d
 F test/fkey5.test 6727452e163a427147e84e739da18713da553d79f9783559b04fdcd36d5c7421
 F test/fkey6.test d078a1e323a740062bed38df32b8a736fd320dc0
 F test/fkey7.test 64fb28da03da5dfe3cdef5967aa7e832c2507bf7fb8f0780cacbca1f2338d031
-F test/fkey8.test 48ef829d63f5f7b37aabd4df9363ac05f65539d1da8c4a44251631769d920579
+F test/fkey8.test 51deda7f1a1448bca95875e4a6e1a3a75b4bd7215e924e845bd60de60e4d84bf
 F test/fkey_malloc.test 594a7ea1fbab553c036c70813cd8bd9407d63749
 F test/fordelete.test ba98f14446b310f9c9d935b97ec748753d0144a28b356ba30d1f4f6958fdde5c
 F test/format4.test eeae341953db8b6bda7f549044797c3278a6cc345d11ada81471671b654f8ef4
@@ -1945,11 +1945,8 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P dbd8e2e46cfb2de0ebdbb62cda2fe669df3eda98f5d6112d541f581995b1361d
-Q +079b7b125206fb295720612f4853a5b786ec431ab595d35407195844779c149d
-Q +647211e044a5856ceb6bf3e7b78e650fe7d81f8b7bf34568b99b346405ba520c
-Q +73f4036b04798660b30e540cbab69420078df9fb62a6a39944e078c36272f905
-R a06dd4204ed9dc6148823319b9085bc9
-U drh
-Z 8357da3748da436bd7d9f47cf82232f1
+P 12645f100d902690630a2925674aedbb01d41a53426a26a2f56de5b8fdec955f
+R 65b6ae478c0c46336b2e3d4a00d84d7d
+U dan
+Z 20ffa409115b35ade94fa1104d7de644
 # Remove this line to create a well-formed Fossil manifest.

manifest.uuid

@@ -1 +1 @@
-12645f100d902690630a2925674aedbb01d41a53426a26a2f56de5b8fdec955f
+04d5b637f087520cd58211505f9b5c086ff96d864a1908f60464b6fe22c62b7d

src/fkey.c

@@ -534,14 +534,10 @@ static Expr *exprTableColumn(
 **   Operation | FK type   | Action taken
 **   --------------------------------------------------------------------------
 **   DELETE      immediate   Increment the "immediate constraint counter".
-**                           Or, if the ON (UPDATE|DELETE) action is RESTRICT,
-**                           throw a "FOREIGN KEY constraint failed" exception.
 **
 **   INSERT      immediate   Decrement the "immediate constraint counter".
 **
 **   DELETE      deferred    Increment the "deferred constraint counter".
-**                           Or, if the ON (UPDATE|DELETE) action is RESTRICT,
-**                           throw a "FOREIGN KEY constraint failed" exception.
 **
 **   INSERT      deferred    Decrement the "deferred constraint counter".
 **
@@ -1189,9 +1185,9 @@ int sqlite3FkRequired(
 **
 ** It returns a pointer to a Trigger structure containing a trigger
 ** equivalent to the ON UPDATE or ON DELETE action specified by pFKey.
-** If the action is "NO ACTION" or "RESTRICT", then a NULL pointer is
-** returned (these actions require no special handling by the triggers
-** sub-system, code for them is created by fkScanChildren()).
+** If the action is "NO ACTION" then a NULL pointer is returned (these actions
+** require no special handling by the triggers sub-system, code for them is
+** created by fkScanChildren()).
 **
 ** For example, if pFKey is the foreign key and pTab is table "p" in 
 ** the following schema:
@@ -1320,18 +1316,23 @@ static Trigger *fkActionTrigger(
     nFrom = sqlite3Strlen30(zFrom);
 
     if( action==OE_Restrict ){
+      int iDb = sqlite3SchemaToIndex(db, pTab->pSchema);
       Token tFrom;
+      Token tDb;
       Expr *pRaise; 
 
       tFrom.z = zFrom;
       tFrom.n = nFrom;
+      tDb.z = db->aDb[iDb].zDbSName;
+      tDb.n = sqlite3Strlen30(tDb.z);
+
       pRaise = sqlite3Expr(db, TK_RAISE, "FOREIGN KEY constraint failed");
       if( pRaise ){
         pRaise->affExpr = OE_Abort;
       }
       pSelect = sqlite3SelectNew(pParse, 
           sqlite3ExprListAppend(pParse, 0, pRaise),
-          sqlite3SrcListAppend(pParse, 0, &tFrom, 0),
+          sqlite3SrcListAppend(pParse, 0, &tDb, &tFrom),
           pWhere,
           0, 0, 0, 0, 0
       );

test/fkey8.test

@@ -228,4 +228,26 @@ do_execsql_test 5.3 {
   PRAGMA integrity_check;
 } {ok}
 
+#-------------------------------------------------------------------------
+reset_db
+forcedelete test.db2
+do_execsql_test 6.1 {
+  PRAGMA foreign_keys = on;
+  CREATE TABLE c1(b);
+  INSERT INTO c1 VALUES(123);
+}
+
+do_execsql_test 6.2 {
+  ATTACH 'test.db2' AS aux;
+  CREATE TABLE aux.p1(a INTEGER PRIMARY KEY);
+  CREATE TABLE aux.c1(b REFERENCES p1(a) ON DELETE RESTRICT);
+
+  INSERT INTO aux.p1 VALUES(123);
+}
+
+do_execsql_test 6.3 {
+  DELETE FROM aux.p1 WHERE a=123;
+}
+
+
 finish_test