- * $Log: merge.c,v $
- * Revision 1.21 2002-08-02 19:26:56 adam
- * Towards GPL
- *
- * Revision 1.20 1999/11/30 13:48:04 adam
- * Improved installation. Updated for inclusion of YAZ header files.
- *
- * Revision 1.19 1999/07/14 12:12:07 heikki
- * Large-block isam-h (may not work too well... Abandoning for isam-d)
- *
- * Revision 1.17 1999/07/13 14:22:17 heikki
- * Better allocation strategy in isamh_merge
- *
- * Revision 1.16 1999/07/08 14:23:27 heikki
- * Fixed a bug in isamh_pp_read and cleaned up a bit
- *
- * Revision 1.15 1999/07/07 09:36:04 heikki
- * Fixed an assertion in isamh
- *
- * Revision 1.13 1999/07/06 09:37:05 heikki
- * Working on isamh - not ready yet.
- *
- * Revision 1.12 1999/06/30 15:03:55 heikki
- * first take on isamh, the append-only isam structure
- *
- * Revision 1.11 1999/05/26 07:49:14 adam
- * C++ compilation.
- *
- * Revision 1.10 1998/03/19 12:22:09 adam
- * Minor change.
- *
- * Revision 1.9 1998/03/19 10:04:38 adam
- * Minor changes.
- *
- * Revision 1.8 1998/03/18 09:23:55 adam
- * Blocks are stored in chunks on free list - up to factor 2 in speed.
- * Fixed bug that could occur in block category rearrangemen.
- *
- * Revision 1.7 1998/03/11 11:18:18 adam
- * Changed the isc_merge to take into account the mfill (minimum-fill).
- *
- * Revision 1.6 1998/03/06 13:54:03 adam
- * Fixed two nasty bugs in isc_merge.
- *
- * Revision 1.5 1997/02/12 20:42:43 adam
- * Bug fix: during isc_merge operations, some pages weren't marked dirty
- * even though they should be. At this point the merge operation marks
- * a page dirty if the previous page changed at all. A better approach is
- * to mark it dirty if the last key written changed in previous page.
- *
- * Revision 1.4 1996/11/08 11:15:31 adam
- * Number of keys in chain are stored in first block and the function
- * to retrieve this information, isc_pp_num is implemented.
- *
- * Revision 1.3 1996/11/04 14:08:59 adam
- * Optimized free block usage.
- *
- * Revision 1.2 1996/11/01 13:36:46 adam
- * New element, max_blocks_mem, that control how many blocks of max size
- * to store in memory during isc_merge.
- * Function isc_merge now ignores delete/update of identical keys and
- * the proper blocks are then non-dirty and not written in flush_blocks.
- *
- * Revision 1.1 1996/11/01 08:59:15 adam
- * First version of isc_merge that supports update/delete.
- *