+ * Revision 1.70 1997-07-01 13:00:42 adam
+ * Bug fix in routine searchRecordKey: uninitialized variables.
+ *
+ * Revision 1.69 1997/04/29 09:26:03 adam
+ * Bug fix: generic recordId handling didn't work for compressed internal
+ * keys.
+ *
+ * Revision 1.68 1997/02/12 20:39:45 adam
+ * Implemented options -f <n> that limits the log to the first <n>
+ * records.
+ * Changed some log messages also.
+ *
+ * Revision 1.67 1996/11/15 15:02:14 adam
+ * Minor changes regarding logging.
+ *
+ * Revision 1.66 1996/11/14 09:52:21 adam
+ * Strings in record keys bound by IT_MAX_WORD.
+ *
+ * Revision 1.65 1996/11/14 08:57:56 adam
+ * Reduction of storeKeys area.
+ *
+ * Revision 1.64 1996/11/08 11:10:16 adam
+ * Buffers used during file match got bigger.
+ * Compressed ISAM support everywhere.
+ * Bug fixes regarding masking characters in queries.
+ * Redesigned Regexp-2 queries.
+ *
+ * Revision 1.63 1996/10/29 14:09:39 adam
+ * Use of cisam system - enabled if setting isamc is 1.
+ *
+ * Revision 1.62 1996/10/11 10:57:01 adam
+ * New module recctrl. Used to manage records (extract/retrieval).
+ * Several files have been moved to the recctrl sub directory.
+ *
+ * Revision 1.61 1996/06/06 12:08:37 quinn
+ * Added showRecord function
+ *
+ * Revision 1.60 1996/06/04 10:18:12 adam
+ * Search/scan uses character mapping module.
+ *
+ * Revision 1.59 1996/05/14 15:47:07 adam
+ * Cleanup of various buffer size entities.
+ *
+ * Revision 1.58 1996/05/14 06:16:38 adam
+ * Compact use/set bytes used in search service.
+ *
+ * Revision 1.57 1996/05/13 14:23:04 adam
+ * Work on compaction of set/use bytes in dictionary.
+ *
+ * Revision 1.56 1996/05/09 09:54:42 adam
+ * Server supports maps from one logical attributes to a list of physical
+ * attributes.
+ * The extraction process doesn't make space consuming 'any' keys.
+ *
+ * Revision 1.55 1996/05/09 07:28:55 quinn
+ * Work towards phrases and multiple registers
+ *
+ * Revision 1.54 1996/05/01 13:46:35 adam
+ * First work on multiple records in one file.
+ * New option, -offset, to the "unread" command in the filter module.
+ *
+ * Revision 1.53 1996/04/26 12:09:43 adam
+ * Added a few comments.
+ *
+ * Revision 1.52 1996/04/25 13:27:57 adam
+ * Function recordExtract modified so that files with no keys (possibly empty)
+ * are ignored.
+ *
+ * Revision 1.51 1996/03/19 11:08:42 adam
+ * Bug fix: Log preamble wasn't always turned off after recordExtract.
+ *
+ * Revision 1.50 1996/02/12 18:45:36 adam
+ * New fileVerboseFlag in record group control.
+ *
+ * Revision 1.49 1996/02/05 12:29:57 adam
+ * Logging reduced a bit.
+ * The remaining running time is estimated during register merge.
+ *
+ * Revision 1.48 1996/02/01 20:53:26 adam
+ * The temporary per-record keys are compacted a little, and duplication
+ * of the per-records keys are avoided when they are saved in the record
+ * information buffer.
+ *
+ * Revision 1.47 1996/01/17 14:57:48 adam
+ * Prototype changed for reader functions in extract/retrieve. File
+ * is identified by 'void *' instead of 'int.
+ *
+ * Revision 1.46 1995/12/15 14:57:16 adam
+ * Bug fix.
+ *
+ * Revision 1.45 1995/12/15 12:37:41 adam
+ * In addRecordKeyAny: Writes key only when attrSet != -1.
+ *
+ * Revision 1.44 1995/12/12 16:00:54 adam
+ * System call sync(2) used after update/commit.
+ * Locking (based on fcntl) uses F_EXLCK and F_SHLCK instead of F_WRLCK
+ * and F_RDLCK.
+ *
+ * Revision 1.43 1995/12/11 09:12:46 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 1.42 1995/12/07 17:38:46 adam
+ * Work locking mechanisms for concurrent updates/commit.
+ *
+ * Revision 1.41 1995/12/06 16:06:42 adam
+ * Better diagnostics. Work on 'real' dictionary deletion.
+ *
+ * Revision 1.40 1995/12/05 16:57:40 adam
+ * More work on regular patterns.
+ *
+ * Revision 1.39 1995/12/05 13:20:18 adam