Re: pl/Ruby, deprecating plPython and Core

David Fetter wrote:

>On a very closely related note, what's the latest on the integration
>of PL/Java and PL/J?
>  
>
Last time I spoke to Laszlo and Dave about this, we discussed the 
following solution:

- PL/Java should be profiled as a "tight Java integration", i.e. Java 
executes in the same VM as the backend.
- PL/J should be profiled as a generic and language agnostic way of 
executing out-of-process calls. The PL/J framework can be used to 
integrate with other virtual VM's then Java (such as Mono for instance).

This makes PL/Java and PL/J to completely different products and both 
producs have its own motivation. In addition we concluded that:

- In order to maximize the outcome of our efforts and avoid head-on 
competition, PL/Java should _not_ enter the "loose Java integration" 
scene (i.e. remote JVM) and PL/J should _not_ enter the "tight Java 
integration" scene.
- An effort must be made to make the PostgreSQL "Java as a procedural 
language" user experience as compatible as possible between PL/Java and 
a PL/J solution that uses a remote Java VM.
- A new project was spawned (see http://j4sql.codehaus.org) where the 
PL/Java and PL/J teams make a joint effort to create an abstraction 
layer that allows a developer to write stored procedures and functions 
in a database independent way.

Regards,
Thomas Hallgren