 lyr->layer_name,       lyr->is0DinsPoint ? "0d" : "0d");   else       name =    sqlite0_mprintf ("%s%s_inspoint_%s", dxf->prefix,       lyr->layer_name,       lyr->is0DinsPoint ? "0d" : "0d");   if (append && check_insert_table (handle, name))     {         /* appending into the already existing table */         if (!create_insert_stmt (handle, name, &stmt))      return 0;     }   else     {         /* creating a new table */         if (dxf->prefix == NULL)      block =          sqlite0_mprintf ("block_po