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Re: PLJava and Database Meta Data

From: Kris Jurka <books(at)ejurka(dot)com>
To: Thomas Hallgren <thhal(at)mailblocks(dot)com>
Cc: "pgsql-jdbc(at)postgresql(dot)org" <pgsql-jdbc(at)postgresql(dot)org>,Filip Hrbek <filip(dot)hrbek(at)plz(dot)comstar(dot)cz>
Subject: Re: PLJava and Database Meta Data
Date: 2005-02-10 19:06:48
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-jdbc

On Thu, 10 Feb 2005, Thomas Hallgren wrote:

> PLJava has its own JDBC driver that is implemented directly on top of 
> JDBC. At present, it lacks support for DatabaseMetaData. One option for 
> us might be to borrow a lot of code from your driver, and perhaps apply 
> some modifications to it. This raises two questions:
> 1. Do you have any objection to us using parts of your code?

Go right ahead.  It's BSD licensed for just such a reason.

> 2. If minor refactoring would make it possible for us to share the code 
> unmodified, would you see that as something worth pursuing?

Certainly something to look into, but I fear there may be too many 
differences, especially in how things like encoding and ResultSet creation 
are handled.  Additionally the driver returns only the JDBC 2 spec fields 
even when built and called as a JDBC 3 driver.  I've been thinking a 
little bit about how to return different fields for different JDBC 
versions without duplicating a whole lot of work, so some reorganization 
seems to be in order.  It would be great to tackle both of these projects 
at the same time.

Kris Jurka

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