Free Hero Mesh

  }
  // Done
  sz=sqlite3_str_length(str);
  if(i=sqlite3_str_errcode(str)) fatal("SQL string error (%d)\n",i);
  data=sqlite3_str_finish(str);
  if(!data) fatal("Allocation failed\n");
  sqlite3_exec(userdb,"BEGIN;",0,0,0);
  // This next line might fail if the LEVELS table has not been loaded yet.
  // Attempting to drop it before it is loaded is slower than it should be, somehow.
  // (I also suspect there might be a bug in SQLite, although I am unsure.)
  // Therefore, it first tries to truncate it; if it hasn't been loaded, it fails.
  sqlite3_exec(userdb,"DELETE FROM LEVELS; DROP TABLE TEMP.LEVELS;",0,0,0);
  write_lump(FIL_LEVEL,level_id,sz,data);
  sqlite3_free(data);
  if(level_ord==level_nindex+1) update_level_index();
  rewrite_class_def();
  if(solution_data) {
    solution_data[0]=level_version&255;
    solution_data[1]=level_version>>8;