Schema backwards compatibility

[Bart Pietercil]

Hi Jon,

As I understand it, there is no modification in the databasefile,  
only modifications in the system tables. So you should indeed be able  
to switch between 2.5 and 3.0 databases

hth

Bart Pietercil

On 11-mei-07, at 17:30, jda wrote:

> Hi Ruslan,
>
> I just changed the schema of my database, adding 3 new fields. On  
> opening older databases, my app modifies them to add these.
>
> I was surprised to find that when I tried to open the new, modified  
> db in the older version of my app it opened without a complaint! I  
> checked with viSQL, and the database is indeed modified (has the 3  
> new fields). Shouldn't the older version refuse to open it,  
> generating a VException?
>
> I'm quite happy to be able to open newer schemas with the older  
> version of my app, but I didn't think it was supposed to work.
>
> Using V2.5.8, BTW, and the API way for creating databases.
>
> Jon
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