can data file be copied from fp 5.8 to fp 5.0 & work. can the data files be transferred back to 5.8 and work?

[Kenneth Brody]

On 3/28/2016 12:05 PM, Richard Kreiss wrote:
> Ken,
>
> One other was the change in the lockfile structure, if memory serves,
> between 5.0 and 5.6.

But the change was made in such a way as to still allow 5.0 and 5.6 to use 
the same file, just not simultaneously.

> One question that has not been answered, are the 5.8.1 auto index backward
> compatible when a selection set is used with these indexes?

For (what should be) obvious reasons, the answer must be "no".

[...]

-- 
Kenneth Brody