Re: Forward compatibility of drivers

It's a matter of finite resources. If the old driver supported the new db
then we wouldn't have to redeploy the applications that use it and may be
able to get away with doing smokes tests after switching the database.
Redeploying is not trivial and requires quite a bit of coordination. We're
also not just talking 1 app.

Given that it's not supported, then we would need to do much more
substantial testing to verify the way we use the old driver would still
work with the newer database. At that point the amount of testing likely
dwarfs the cost of redeploying the apps with the newer jar and we might as
well upgrade.

Bob

On 6/26/12 1:38 PM, "Dave Cramer" <pg(at)fastcrypt(dot)com> wrote:

>I figured as much, so what is stopping you from changing the postgresql
>jar ?
>
>Dave Cramer
>
>dave.cramer(at)credativ(dot)ca
>http://www.credativ.ca
>
>
>On Tue, Jun 26, 2012 at 2:36 PM, Robert Jacoby
><robert(dot)jacoby(at)rackspace(dot)com> wrote:
>> "Better question is why would you not want to upgrade to the latest
>> driver?"
>>
>>
>> hehe. It's not a question of "want". =)
>>
>> Bob
>>
>> On 6/26/12 1:27 PM, "Dave Cramer" <pg(at)fastcrypt(dot)com> wrote:
>>
>>>Depending on what you are doing it will probably work. This assumes
>>>you are only doing basic CRUD . It will only use protocol version 2.
>>>Of course there's no guarantees. It is an unintended use case.
>>>
>>>Better question is why would you not want to upgrade to the latest
>>>driver
>>>?
>>>
>>>Dave Cramer
>>>
>>>dave.cramer(at)credativ(dot)ca
>>>http://www.credativ.ca
>>>
>>>
>>>On Tue, Jun 26, 2012 at 1:21 PM, Robert Jacoby
>>><robert(dot)jacoby(at)rackspace(dot)com> wrote:
>>>> I have an app that is using the 8.2-504.jdbc3 driver. It's currently
>>>>hitting
>>>> an 8.3.8 pgsql db. I would like to upgrade the database to 9.1.4. The
>>>> benefits of upgrading to the latest driver aside, is using the 8.2
>>>>driver
>>>> against a 9.1.4 database supported? If not, any idea what landmines I
>>>>can
>>>> expect?
>>>>
>>>> I saw backward compatibility notes that the 9.1-902 driver is backward
>>>> compatible with 7.2 postgresql+, but nothing regarding forward
>>>>compatibility
>>>> of the drivers.
>>>>
>>>> Thanks,
>>>> Bob
>>