Add tests to make sure altering or adding an index to a virtual table is prohibited. (CVS 3280)

FossilOrigin-Name: 6c3e8852ffbaf5ab52ffdf7ed3767fa1d4fd5882

src/build.c

@@ -22,7 +22,7 @@
 **     COMMIT
 **     ROLLBACK
 **
-** $Id: build.c,v 1.406 2006/06/21 07:34:11 danielk1977 Exp $
+** $Id: build.c,v 1.407 2006/06/21 12:36:25 danielk1977 Exp $
 */
 #include "sqliteInt.h"
 #include <ctype.h>
@@ -2304,6 +2304,12 @@ void sqlite3CreateIndex(
     goto exit_create_index;
   }
 #endif
+#ifndef SQLITE_OMIT_VIRTUALTABLE
+  if( IsVirtual(pTab) ){
+    sqlite3ErrorMsg(pParse, "virtual tables may not be indexed");
+    goto exit_create_index;
+  }
+#endif
 
   /*
   ** Find the name of the index.  Make sure there is not already another