Data Type Conversion, get simple data types

[Dombi Attila <dombi_attila@xxxxxxxxx>]

Hi ,


I want to get the colum types in postgres, and i received a lot of customized data types,
like bpchar, oid etc. My problem is, i want to represent these rows in a Java table, and i need to know,
the the basic datatypes of the columns, beacuse i want to use that column types in the table to make updates in the database.
So how can i get the basic datatypes of the columns, or how can i simplify the customized data types?

                   With thanks,
                            Dombi Attila