+ * Revision 1.34 1996-03-20 09:36:46 adam
+ * Function dict_lookup_grep got extra parameter, init_pos, which marks
+ * from which position in pattern approximate pattern matching should occur.
+ * Approximate pattern matching is used in relevance=re-2.
+ *
+ * Revision 1.33 1996/01/17 14:57:56 adam
+ * Prototype changed for reader functions in extract/retrieve. File
+ * is identified by 'void *' instead of 'int.
+ *
+ * Revision 1.32 1995/12/11 09:12:58 adam
+ * The rec_get function returns NULL if record doesn't exist - will
+ * happen in the server if the result set records have been deleted since
+ * the creation of the set (i.e. the search).
+ * The server saves a result temporarily if it is 'volatile', i.e. the
+ * set is register dependent.
+ *
+ * Revision 1.31 1995/12/08 16:22:56 adam
+ * Work on update while servers are running. Three lock files introduced.
+ * The servers reload their registers when necessary, but they don't
+ * reestablish result sets yet.
+ *
+ * Revision 1.30 1995/12/07 17:38:48 adam
+ * Work locking mechanisms for concurrent updates/commit.
+ *
+ * Revision 1.29 1995/12/04 14:22:32 adam
+ * Extra arg to recType_byName.
+ * Started work on new regular expression parsed input to
+ * structured records.
+ *
+ * Revision 1.28 1995/11/28 09:09:48 adam
+ * Zebra config renamed.
+ * Use setting 'recordId' to identify record now.
+ * Bug fix in recindex.c: rec_release_blocks was invokeded even
+ * though the blocks were already released.
+ * File traversal properly deletes records when needed.
+ *
+ * Revision 1.27 1995/11/27 13:58:54 adam
+ * New option -t. storeStore data implemented in server.
+ *
+ * Revision 1.26 1995/11/25 10:24:07 adam
+ * More record fields - they are enumerated now.
+ * New options: flagStoreData flagStoreKey.
+ *
+ * Revision 1.25 1995/11/21 15:29:13 adam
+ * Config file 'base' read by default by both indexer and server.
+ *
+ * Revision 1.24 1995/11/20 16:59:47 adam
+ * New update method: the 'old' keys are saved for each records.
+ *
+ * Revision 1.23 1995/11/16 17:00:56 adam
+ * Better logging of rpn query.
+ *
+ * Revision 1.22 1995/11/16 15:34:55 adam
+ * Uses new record management system in both indexer and server.
+ *
+ * Revision 1.21 1995/11/01 16:25:52 quinn
+ * *** empty log message ***
+ *
+ * Revision 1.20 1995/10/27 14:00:12 adam
+ * Implemented detection of database availability.
+ *
+ * Revision 1.19 1995/10/17 18:02:11 adam
+ * New feature: databases. Implemented as prefix to words in dictionary.
+ *
+ * Revision 1.18 1995/10/16 14:03:09 quinn
+ * Changes to support element set names and espec1
+ *
+ * Revision 1.17 1995/10/16 09:32:40 adam
+ * More work on relational op.
+ *
+ * Revision 1.16 1995/10/13 12:26:44 adam
+ * Optimization of truncation.
+ *
+ * Revision 1.15 1995/10/12 12:40:55 adam
+ * Bug fixes in rpn_prox.
+ *
+ * Revision 1.14 1995/10/09 16:18:37 adam
+ * Function dict_lookup_grep got extra client data parameter.
+ *
+ * Revision 1.13 1995/10/06 14:38:00 adam
+ * New result set method: r_score.
+ * Local no (sysno) and score is transferred to retrieveCtrl.
+ *
+ * Revision 1.12 1995/10/06 13:52:06 adam