+ * Revision 1.29 2001-01-22 10:42:56 adam
+ * Added numerical sort.
+ *
+ * Revision 1.28 2000/07/07 12:49:20 adam
+ * Optimized resultSetInsert{Rank,Sort}.
+ *
+ * Revision 1.27 2000/04/05 09:49:36 adam
+ * On Unix, zebra/z'mbol uses automake.
+ *
+ * Revision 1.26 2000/03/20 19:08:36 adam
+ * Added remote record import using Z39.50 extended services and Segment
+ * Requests.
+ *
+ * Revision 1.25 2000/03/15 15:00:31 adam
+ * First work on threaded version.
+ *
+ * Revision 1.24 1999/11/04 15:00:45 adam
+ * Implemented delete result set(s).
+ *
+ * Revision 1.23 1999/05/26 07:49:13 adam
+ * C++ compilation.
+ *
+ * Revision 1.22 1999/02/02 14:51:15 adam
+ * Updated WIN32 code specific sections. Changed header.
+ *
+ * Revision 1.21 1998/11/16 16:03:46 adam
+ * Moved loggin utilities to Yaz. Was implemented in file zlogs.c.
+ *
+ * Revision 1.20 1998/11/16 10:10:53 adam
+ * Fixed problem with zebraPosSetCreate that occurred when positions were
+ * less than 1.
+ *
+ * Revision 1.19 1998/09/22 10:48:22 adam
+ * Minor changes in search API.
+ *
+ * Revision 1.18 1998/09/22 10:03:45 adam
+ * Changed result sets to be persistent in the sense that they can
+ * be re-searched if needed.
+ * Fixed memory leak in rsm_or.
+ *
+ * Revision 1.17 1998/06/23 15:33:36 adam
+ * Added feature to specify sort criteria in query (type 7 specifies
+ * sort flags).
+ *
+ * Revision 1.16 1998/05/20 10:12:24 adam