- * $Log: zsets.c,v $
- * Revision 1.32 2002-02-20 17:30:01 adam
- * Work on new API. Locking system re-implemented
- *
- * Revision 1.31 2001/11/19 23:05:22 adam
- * Added a few prototypes.
- *
- * Revision 1.30 2001/10/15 19:53:43 adam
- * POSIX thread updates. First work on term sets.
- *
- * 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
- * Implemented automatic EXPLAIN database maintenance.
- * Modified Zebra to work with ASN.1 compiled version of YAZ.
- *
- * Revision 1.15 1998/03/05 08:45:14 adam
- * New result set model and modular ranking system. Moved towards
- * descent server API. System information stored as "SGML" records.
- *
- * Revision 1.14 1998/02/10 16:39:15 adam
- * Minor change.
- *
- * Revision 1.13 1998/02/10 12:03:06 adam
- * Implemented Sort.
- *
- * Revision 1.12 1997/09/25 14:57:36 adam
- * Windows NT port.
- *
- * Revision 1.11 1996/12/23 15:30:46 adam
- * Work on truncation.
- * Bug fix: result sets weren't deleted after server shut down.
- *
- * Revision 1.10 1995/10/30 15:08:08 adam
- * Bug fixes.
- *
- * Revision 1.9 1995/10/17 18:02:14 adam
- * New feature: databases. Implemented as prefix to words in dictionary.
- *
- * Revision 1.8 1995/10/10 13:59:25 adam
- * Function rset_open changed its wflag parameter to general flags.
- *
- * Revision 1.7 1995/10/06 14:38:01 adam
- * New result set method: r_score.
- * Local no (sysno) and score is transferred to retrieveCtrl.
- *
- * Revision 1.6 1995/09/28 09:19:49 adam
- * xfree/xmalloc used everywhere.
- * Extract/retrieve method seems to work for text records.
- *
- * Revision 1.5 1995/09/27 16:17:32 adam
- * More work on retrieve.
- *
- * Revision 1.4 1995/09/07 13:58:36 adam
- * New parameter: result-set file descriptor (RSFD) to support multiple
- * positions within the same result-set.
- * Boolean operators: and, or, not implemented.
- * Result-set references.
- *
- * Revision 1.3 1995/09/06 16:11:19 adam
- * Option: only one word key per file.
- *
- * Revision 1.2 1995/09/06 10:33:04 adam
- * More work on present. Some log messages removed.
- *
- * Revision 1.1 1995/09/05 15:28:40 adam
- * More work on search engine.
- *