Subject RE: [IB-Architect] Backward compatability with previous versions of gdb files
Author Jim Starkey
At 09:36 AM 5/1/00 -0700, David Schnepper wrote:
>During v6 design meetings we discussed writing an "ODS upgrade" utility -- a
>relatively simple program for ODS9 to ODS10.
>A primary motovation for ODS10 was to prevent v5 engines from accessing the
>database. (A V5 engine would not know about the new datatypes
>dtype_sql_time, dtype_int64 - and would promptly crash - hopefully without
>corrupting any data <grin>). If memory serves, the only actual on-disk
>change was converting Generators from 32 bit to 64 bit values -- which would
>be a matter of restructuring a handful of pages in the engine.

Why not use the ODS major and minor versions on the database header page?

Jim Starkey