Index: src/attach.c
==================================================================
--- src/attach.c
+++ src/attach.c
@@ -330,11 +330,10 @@
   if( 
       SQLITE_OK!=(rc = resolveAttachExpr(&sName, pFilename)) ||
       SQLITE_OK!=(rc = resolveAttachExpr(&sName, pDbname)) ||
       SQLITE_OK!=(rc = resolveAttachExpr(&sName, pKey))
   ){
-    pParse->nErr++;
     goto attach_end;
   }
 
 #ifndef SQLITE_OMIT_AUTHORIZATION
   if( pAuthArg ){

Index: src/build.c
==================================================================
--- src/build.c
+++ src/build.c
@@ -761,18 +761,16 @@
   sqlite3 *db = pParse->db;
 
   if( ALWAYS(pName2!=0) && pName2->n>0 ){
     if( db->init.busy ) {
       sqlite3ErrorMsg(pParse, "corrupt database");
-      pParse->nErr++;
       return -1;
     }
     *pUnqual = pName2;
     iDb = sqlite3FindDb(db, pName1);
     if( iDb<0 ){
       sqlite3ErrorMsg(pParse, "unknown database %T", pName1);
-      pParse->nErr++;
       return -1;
     }
   }else{
     assert( db->init.iDb==0 || db->init.busy );
     iDb = db->init.iDb;

Index: src/trigger.c
==================================================================
--- src/trigger.c
+++ src/trigger.c
@@ -191,11 +191,10 @@
   }
 
   /* Do not create a trigger on a system table */
   if( sqlite3StrNICmp(pTab->zName, "sqlite_", 7)==0 ){
     sqlite3ErrorMsg(pParse, "cannot create trigger on system table");
-    pParse->nErr++;
     goto trigger_cleanup;
   }
 
   /* INSTEAD of triggers are only for views and views only support INSTEAD
   ** of triggers.

Index: test/table.test
==================================================================
--- test/table.test
+++ test/table.test
@@ -269,10 +269,29 @@
     DROP TABLE IF EXISTS sqlite_stat3;
     DROP TABLE IF EXISTS sqlite_stat4;
     SELECT name FROM sqlite_master WHERE name GLOB 'sqlite_stat*';
   }
 } {}
+
+do_test table-5.2.2 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  db eval {
+    CREATE TABLE t0(a,b);
+    CREATE INDEX t ON t0(a);
+    PRAGMA writable_schema=ON;
+    UPDATE sqlite_master SET sql='CREATE TABLE a.b(a UNIQUE';
+    BEGIN;
+    CREATE TABLE t1(x);
+    ROLLBACK;
+    DROP TABLE IF EXISTS t99;
+  }
+} {}
+db close
+forcedelete test.db
+sqlite3 db test.db
 
 # Make sure an EXPLAIN does not really create a new table
 #
 do_test table-5.3 {
   ifcapable {explain} {