Index: src/where.c
==================================================================
--- src/where.c
+++ src/where.c
@@ -1058,11 +1058,10 @@
       sqlite3ErrorMsg(pParse, "%s", pVtab->zErrMsg);
     }
   }
   sqlite3_free(pVtab->zErrMsg);
   pVtab->zErrMsg = 0;
-  // assert( pParse->nErr==0 || (rc!=SQLITE_OK && rc!=SQLITE_CONSTRAINT) );
   return rc;
 }
 #endif /* !defined(SQLITE_OMIT_VIRTUALTABLE) */
 
 #ifdef SQLITE_ENABLE_STAT3_OR_STAT4