+ * Revision 1.17 1995-10-13 16:01:49 adam
+ * Work on relations.
+ *
+ * Revision 1.16 1995/10/10 12:24:38 adam
+ * Temporary sort files are compressed.
+ *
+ * Revision 1.15 1995/10/04 16:57:19 adam
+ * Key input and merge sort in one pass.
+ *
+ * Revision 1.14 1995/09/29 14:01:40 adam
+ * Bug fixes.
+ *
+ * Revision 1.13 1995/09/28 14:22:56 adam
+ * Sort uses smaller temporary files.
+ *
+ * Revision 1.12 1995/09/28 12:10:32 adam
+ * Bug fixes. Field prefix used in queries.
+ *
+ * Revision 1.11 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 1.10 1995/09/14 07:48:23 adam