Re: UDT arrays

Excuse me for butting in, but am I right in understanding that you're
only talking about the Softperience JDBC driver, not the official one?

http://softperience.eu/pages/cmn/ngpgjdbc.xhtml

Like Lukas I'm also writing a database tool (though mine works on rather
different principles), and I'm also extremely interested in support for
UDT's and arrays of UDT's.

- thormick

On Thu, 2011-02-10 at 11:26 +0100, Radosław Smogura wrote:
> I plan to sleep PGObjects, and wake for backward compatibility (maybe as
> deprectaed or some parts of methodes there - there are static methods, which
> causes problems with JDBC4 Exception model and some per connection specific
> functionaly). Arrays parsing is different in text and in binary mode, and
> binary mode requires more carefull casting. Actually current flow should allow
> to read any nested type, which is supported by ResultSet, form parent object
> (I putted only exception for getting result set with multidimensional arrays).
>
> I plan to give support for specific PG objects like box, but make them more
> portable, without internal connection with JDBC dirver logic (you should be
> able to serialize and deserialzie those objects on clients without
> postgresql.jar). I plan as well to give "plugable" support for custom PG
> objects, which can't be processed as UDT (above box is example). I think about
> mapping some PG objects to standard Java classes e.g. PG's box -> java.awt.Box
> (but this is far future). Above must be done in descriptive way, to be usable
> with DataSource and app servers, eg.
>
> @Resource
> private DataSource myPgDataSourceWithMyCustomObjects
>
> Both of those should be designed in fast way, low memory consuption and in way
> preventing writing thousend lines of code if binary format for given object
> will be different per DB level or per new protocol (see e.g. problems with
> bytea encoding in 9.x releases).