+ * Revision 1.22 1997-09-22 12:39:06 adam
+ * Added get_pos method for the ranked result sets.
+ *
+ * Revision 1.21 1997/09/17 12:19:13 adam
+ * Zebra version corresponds to YAZ version 1.4.
+ * Changed Zebra server so that it doesn't depend on global common_resource.
+ *
+ * Revision 1.20 1996/12/23 15:30:44 adam
+ * Work on truncation.
+ * Bug fix: result sets weren't deleted after server shut down.
+ *
+ * Revision 1.19 1996/12/11 12:08:00 adam
+ * Added better compression.
+ *
+ * Revision 1.18 1996/10/29 14:09:44 adam
+ * Use of cisam system - enabled if setting isamc is 1.
+ *
+ * Revision 1.17 1996/06/04 10:18:58 adam
+ * Minor changes - removed include of ctype.h.
+ *
+ * Revision 1.16 1996/05/13 14:23:05 adam
+ * Work on compaction of set/use bytes in dictionary.
+ *
+ * Revision 1.15 1995/11/20 16:59:46 adam
+ * New update method: the 'old' keys are saved for each records.
+ *
+ * Revision 1.14 1995/10/30 15:08:08 adam
+ * Bug fixes.
+ *
+ * Revision 1.13 1995/10/27 14:00:11 adam
+ * Implemented detection of database availability.
+ *
+ * Revision 1.12 1995/10/17 18:02:08 adam
+ * New feature: databases. Implemented as prefix to words in dictionary.
+ *
+ * Revision 1.11 1995/10/06 16:33:37 adam
+ * Use attribute mappings.
+ *
+ * Revision 1.10 1995/09/29 14:01:41 adam
+ * Bug fixes.
+ *
+ * Revision 1.9 1995/09/28 12:10:32 adam
+ * Bug fixes. Field prefix used in queries.
+ *
+ * Revision 1.8 1995/09/28 09:19:42 adam
+ * xfree/xmalloc used everywhere.
+ * Extract/retrieve method seems to work for text records.
+ *
+ * Revision 1.7 1995/09/27 12:22:28 adam
+ * More work on extract in record control.
+ * Field name is not in isam keys but in prefix in dictionary words.
+ *
+ * Revision 1.6 1995/09/14 07:48:23 adam