fp = (new QueryFieldProcessor (*notmuch->query_parser, notmuch))->release ();
else if (STRNCMP_LITERAL (prefix->name, "thread") == 0)
fp = (new ThreadFieldProcessor (*notmuch->query_parser, notmuch))->release ();
fp = (new QueryFieldProcessor (*notmuch->query_parser, notmuch))->release ();
else if (STRNCMP_LITERAL (prefix->name, "thread") == 0)
fp = (new ThreadFieldProcessor (*notmuch->query_parser, notmuch))->release ();