+
+void zebra_count_set(ZebraHandle zh, RSET rset, zint *count,
+ zint approx_limit)
+{
+ zint psysno = 0;
+ struct it_key key;
+ RSFD rfd;
+
+ yaz_log(YLOG_DEBUG, "count_set");
+
+ rset->hits_limit = approx_limit;
+
+ *count = 0;
+ rfd = rset_open(rset, RSETF_READ);
+ while (rset_read(rfd, &key,0 /* never mind terms */))
+ {
+ if (key.mem[0] != psysno)
+ {
+ psysno = key.mem[0];
+ if (rfd->counted_items >= rset->hits_limit)
+ break;
+ }
+ }
+ rset_close(rfd);
+ *count = rset->hits_count;
+}