+ if (sortkey && strcmp(sortkey, "no"))
+ {
+ struct conf_sortkey *sk = &r->sortkeys[sk_node];
+ if (md->merge == Metadata_merge_no)
+ {
+ yaz_log(YLOG_FATAL, "Can't specify sortkey on a non-merged field");
+ return 0;
+ }
+ if (!strcmp(sortkey, "numeric"))
+ sk->type = Metadata_sortkey_numeric;
+ else if (!strcmp(sortkey, "skiparticle"))
+ sk->type = Metadata_sortkey_skiparticle;
+ else
+ {
+ yaz_log(YLOG_FATAL, "Unknown sortkey in metadata element: %s", sortkey);
+ return 0;
+ }
+ sk->name = md->name;
+ md->sortkey_offset = sk_node;
+ sk_node++;
+ }
+ else
+ md->sortkey_offset = -1;
+