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Re: Upgrade question, going from 8.3 to 9.1...

From: Dave Cramer <pg(at)fastcrypt(dot)com>
To: Віталій Тимчишин <tivv00(at)gmail(dot)com>
Cc: Ned Wolpert <ned(dot)wolpert(at)gmail(dot)com>, pgsql-jdbc(at)postgresql(dot)org
Subject: Re: Upgrade question, going from 8.3 to 9.1...
Date: 2012-02-15 20:48:54
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-jdbc
My memory seems to be failing, yes, you will probably need a newer driver.
Dave Cramer


2012/2/15 Віталій Тимчишин <tivv00(at)gmail(dot)com>:
> I do remember some problems discussed with 9.1. AFAIR here it
> is:
> According to the thread, driver was fixed, so you need 9.1 driver to handle
> this problem.
> 2012/2/15 Ned Wolpert <ned(dot)wolpert(at)gmail(dot)com>
>> Folks-
>>   We're in the process of upgrading our postgresql install from 8.3 to
>> 9.1.2. Our main application is using postgresql-8.3-606.jdbc3.jar against
>> the existing postgresql database. (Java jdk1.6.0_29, Oracle's version, not
>> OpenJDK.  Its in use by hibernate. (Other Java applications use the database
>> too, but mostly via hibernate or rbatis)
>>   My questions are:
>> 1) is it necessary to upgrade the jdbc jar file to the 9.1 version, or is
>> the 8.3 version 'upwards' compatible? If it is, can someone point out me to
>> what I would fail in apps that did not upgrade?
>> 2) Even though we are not using features from the JDBC4 version, should we
>> still use the JDBC4 variant due to the 1.6 JDK version?
>> 3) Is there any potential issues if an application is using the latest 9.1
>> JDBC driver against postgresql 8.3.x database?
>> Obviously, we're hoping not to require an updated jar file, and just delay
>> the upgrade until the next application release. But I need to know if
>> upgrading the JDBC driver with the database upgrade cannot be avoided.
>> Thanks
>> --
>> Virtually, Ned Wolpert
>> "Settle thy studies, Faustus, and begin..."   --Marlowe
> --
> Best regards,
>  Vitalii Tymchyshyn

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