Re: [INTERFACES] BLOB handling compatibility with PostgreSQL > 7.4 - Mailing list pgsql-odbc

From Tom Lane
Subject Re: [INTERFACES] BLOB handling compatibility with PostgreSQL > 7.4
Date
Msg-id 15186.1133896033@sss.pgh.pa.us
Whole thread Raw
In response to Re: [INTERFACES] BLOB handling compatibility with PostgreSQL > 7.4  (Ludek Finstrle <luf@pzkagis.cz>)
Responses Re: [INTERFACES] BLOB handling compatibility with PostgreSQL > 7.4
Re: [INTERFACES] BLOB handling compatibility with PostgreSQL
List pgsql-odbc
Ludek Finstrle <luf@pzkagis.cz> writes:
> I don't want to reinvent the wheel.

Why do you feel a need to distinguish the domain from its underlying
type on the client side?  They're the same as regards representation
and so on.

The reason for the backend change was that client-side drivers (such as
JDBC and ODBC) want to know the underlying datatype so that they know
what representation to use etc.  Distinguishing domains made their job
harder not easier.

If you want an add-on datatype that is really different from OID, then
make a real datatype (CREATE TYPE).  You can still piggyback on OID as
the representation type --- steal its I/O functions and so on.

            regards, tom lane

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