Unless I am mistaken, this implements the same functionality as the
pipemap table. It queries tables in sequence, not in parallel.
Wietse
+static const char *dict_join_lookup(DICT *dict, const char *query)
+{
+ const char myname[] = "dict_join_lookup";
+ DICT_JOIN *dict_join = (DICT_JOIN *) dict;
+ DICT *map;
+ char **cpp;
+ char *dict_type_name;
+ const char *result = 0;
+
+ vstring_strcpy(dict_join->qr_buf, query);
+ for (cpp = dict_join->map_join->argv; (dict_type_name = *cpp) != 0; cpp++)
{
+ if ((map = dict_handle(dict_type_name)) == 0)
+ msg_panic("%s: dictionary \"%s\" not found", myname,
dict_type_name);
+ if ((result = dict_get(map, STR(dict_join->qr_buf))) == 0)
+ DICT_ERR_VAL_RETURN(dict, map->error, result);
+ vstring_strcpy(dict_join->qr_buf, result);
+ }
+ DICT_ERR_VAL_RETURN(dict, DICT_ERR_NONE, STR(dict_join->qr_buf));
+}
