Re: Storing query language in relations
From: Marshall Spight <mspight_at_dnai.com>
Date: Sat, 05 Oct 2002 15:51:29 GMT
Message-ID: <5UDn9.50826$PP.57023_at_rwcrnsc53>
Date: Sat, 05 Oct 2002 15:51:29 GMT
Message-ID: <5UDn9.50826$PP.57023_at_rwcrnsc53>
"Paul" <pbrazier_at_cosmos-uk.co.uk> wrote in message news:51d64140.0210040220.6ea54b8d_at_posting.google.com...
>
> So perhaps the point is more of a conceptual one - that we should move
> away from thinking of a query language as the primary means of
> interacting with the database, and the system tables as only an
> "underlying" storage for DDL.
The way I have thought about this for a while now is that the catalog is the definitive source (and sink) for any schema changes, and any DDL is/should be merely a convenient shorthand for relational operations on the catalog.
Marshall Received on Sat Oct 05 2002 - 17:51:29 CEST