[Loadstone] Loadstone GPS V0.70 released

Shawn Kirkpatrick shawn at loadstone-gps.com
Wed May 7 06:21:21 BST 2008


Well, like I said before, people may be using different versions. Not 
everybody upgrades at the same time. Just how do you propose to change 
earlier versions? Kind of tricky if people haven't upgraded to begin with.

On Wed, 7 May 2008, Gianfranco Giudice wrote:

> Hi
>
> If the latest version is working well with 1st and 2nd edition, I don't see
> why downgrading.
> You may change earlier versions, so that new files on DB could be ignored.
> I had to use 0.68 for 6670 and were not really sodisfied.
>
> Gian
>
> -----Original Message-----
> From: loadstone-bounces at loadstone-gps.com
> [mailto:loadstone-bounces at loadstone-gps.com] On Behalf Of Shawn Kirkpatrick
> Sent: Wednesday, May 07, 2008 4:17 AM
> To: loadstone at loadstone-gps.com
> Subject: Re: [Loadstone] Loadstone GPS V0.70 released
>
> The database can provide a list of current fields. The problem with this is
> it would break previous versions. Sometimes people have to downgrade for
> various reasons or want to share there databases with other people that
> might not be running the same version. When the database gets changed it'll
> be very clear that it won't run on previous versions. When that happens I
> want a significant improvement over the current system. I want to add other
> fields as well, phone number and address would be nice. Some kind of
> catigory system will also be implemented. We'll have to figure out how to
> get all this in and make it scale. The current database engine doesn't offer
> a lot in this area thoe. All this is a ways off.
>
> On Tue, 6 May 2008, Dave Mielke wrote:
>
>> [quoted lines by Shawn Kirkpatrick on 2008/05/06 at 18:47 -0700]
>>
>>> At some point there'll be a database redesign. Multiple files have
>>> been considered and might work. The only problem is keeping things in
>>> sync, all the overhead may actually make things bigger and slower.
>>> I'm not going to just hack in a single field, when the database
>>> changes it'll be a complete change, most likely causing a major version
> number change as well.
>>
>> Can you ask the current database engine which fields have been defined
>> for a given database file? If so, you could simply support default
>> values for missing fields and write all new files with all fields.
>>
>> --
>> Dave Mielke           | 2213 Fox Crescent | I believe that the Bible is
> the
>> Phone: 1-613-726-0014 | Ottawa, Ontario   | Word of God. Please contact me
>> EMail: dave at mielke.cc | Canada  K2A 1H7   | if you're concerned about
> Hell.
>> http://FamilyRadio.com/                   | http://Mielke.cc/bible/
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