On Jun 22, 2009, at 11:43 AM, Dario Teixeira wrote:
How are you talking to the database ? ODBC? JDBC? LibPQ? Something
else?
Or do you want this from within PL/PgSQL ?
I'm hacking on a client-side library which talks directly to the
Postmaster
using the wire protocol [1]. I need this information to improve some
of the
nullability-detection heuristics used by the library.
The information you want is always returned from the query as a row
description message. This includes the type oid of real and computed
columns.
See the RowDescription message on this page for details:
http://www.postgresql.org/docs/8.3/static/protocol-message-formats.html
John DeSoi, Ph.D.
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