Re: CREATE FOREGIN TABLE LACUNA - Mailing list pgsql-hackers

From David Fetter
Subject Re: CREATE FOREGIN TABLE LACUNA
Date
Msg-id 20120323183856.GG23582@fetter.org
Whole thread Raw
In response to Re: CREATE FOREGIN TABLE LACUNA  (Alvaro Herrera <alvherre@commandprompt.com>)
Responses Re: CREATE FOREGIN TABLE LACUNA  (David Fetter <david@fetter.org>)
Re: CREATE FOREGIN TABLE LACUNA  (Dean Rasheed <dean.a.rasheed@gmail.com>)
List pgsql-hackers
On Thu, Mar 15, 2012 at 11:23:43AM -0300, Alvaro Herrera wrote:
> Excerpts from David Fetter's message of jue mar 15 02:28:28 -0300 2012:
> > On Wed, Mar 14, 2012 at 12:06:20PM -0400, Robert Haas wrote:
> > > On Wed, Mar 14, 2012 at 10:22 AM, David Fetter <david@fetter.org> wrote:
> > > >> I think that instead of inventing new grammar productions and a new
> > > >> node type for this, you should just reuse the existing productions for
> > > >> LIKE clauses and then reject invalid options during parse analysis.
> > > >
> > > > OK.  Should I first merge CREATE FOREIGN TABLE with CREATE TABLE and
> > > > submit that as a separate patch?
> > >
> > > I don't see any reason to do that.  I merely meant that you could
> > > reuse TableLikeClause or maybe even TableElement in the grammer for
> > > CreateForeignTableStmt.
> >
> > Next WIP patch attached implementing this via reusing TableLikeClause
> > and refactoring transformTableLikeClause().
> >
> > What say?
>
> Looks much better to me, but the use of strcmp() doesn't look good.
> ISTM that stmtType is mostly used for error messages.  I think you
> should add some kind of identifier (such as the original parser Node)
> into the CreateStmtContext so that you can do a IsA() test instead -- a
> bit more invasive as a patch, but much cleaner.
>
> Also the error messages need more work.

How about this one?

Cheers,
David.
--
David Fetter <david@fetter.org> http://fetter.org/
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