Fix calc. of approximation

diff --git a/src/client.c b/src/client.c
index 59fb027..eee0396 100644 (file)
--- a/src/client.c
+++ b/src/client.c
@@ -1327,10 +1327,9 @@ Odr_int client_get_hits(struct client *cl)
 
 Odr_int client_get_approximation(struct client *cl)
 {
-    int records = cl->record_offset + cl->filtered;
-    if (records > 0) {
-        Odr_int approx = (cl->hits * cl->record_offset) / records;
-        yaz_log(YLOG_LOG, "%s: Approx: %lld * %d / %d = %lld ", client_get_id(cl), cl->hits, cl->record_offset, records, approx);
+    if (cl->record_offset > 0) {
+        Odr_int approx = (cl->hits * (cl->record_offset - cl->filtered)) / cl->record_offset;
+        yaz_log(YLOG_LOG, "%s: Approx: %lld * %d / %d = %lld ", client_get_id(cl), cl->hits, cl->record_offset - cl->filtered, cl->record_offset, approx);
         return approx;
     }
     return cl->hits;