On Mon, Aug 16, 2010 at 02:25:50PM -0400, Robert Haas wrote: > On Sun, Aug 15, 2010 at 7:44 AM, Hitoshi Harada <umi.tan...@gmail.com> wrote: > > We (Marko, David Fetter and I) discussed on IRC about design of > > writeable CTEs. It does and will contain not only syntax but also > > miscellaneous specifications, general rules and restrictions. I hope > > this will help the patch reviews and stop dangerous design at the > > early stage. If you find something wrong, or have request, please > > notify. > > > > http://wiki.postgresql.org/wiki/WriteableCTEs > > > > We will keep to add details. Any comments are welcome. > > There are really two separate features here, and it might be worth > giving them separate names and separate designs (and separate > patches). Allowing the main query to be an insert, update, or delete > seems easier than allowing the toplevel CTEs to contain those > constructs, although I might be wrong about that.
Interesting. I'd kinda seen them as the same thing. > Under features, what is DCL? Data Control Language, i.e. GRANT and REVOKE. > There has been previous talk of allowing WITH (COPY ...) and I am > personally of the opinion that it would be nice to be able to do > WITH (EXPLAIN ...). DDL seems like a poor idea. It may be, but I can see use cases for partitioning... > P.S. Call me a prude, but your choice of shorthand for > insert-update-delete may not be the best. Then I presume you'll be supporting my idea of using the word "span" for temporal data types rather than the current idea whose name appears in academic literature. Cheers, David. -- David Fetter <da...@fetter.org> http://fetter.org/ Phone: +1 415 235 3778 AIM: dfetter666 Yahoo!: dfetter Skype: davidfetter XMPP: david.fet...@gmail.com iCal: webcal://www.tripit.com/feed/ical/people/david74/tripit.ics Remember to vote! Consider donating to Postgres: http://www.postgresql.org/about/donate -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
