Re: Insert ... (a, b, DEFAULT, c, d); - Mailing list pgsql-patches

From Bruce Momjian
Subject Re: Insert ... (a, b, DEFAULT, c, d);
Date
Msg-id 200204051155.g35Btkk18782@candle.pha.pa.us
Whole thread Raw
In response to Re: Insert ... (a, b, DEFAULT, c, d);  ("Rod Taylor" <rbt@zort.ca>)
List pgsql-patches
Patch applied.  Thanks.

---------------------------------------------------------------------------


Rod Taylor wrote:
> Added Copy and Equal nodes -- although InsertDefault doesn't actually
> have any contents.
>
> Opted for method b as transformTargetList is used in a number of other
> places which are unaffected.  Making them work around the calling
> conventions for a single place seemed silly.
>
> Previously attached insert.out and insert.sql are the same.
>
> --
> Rod Taylor
>
> Your eyes are weary from staring at the CRT. You feel sleepy. Notice
> how restful it is to watch the cursor blink. Close your eyes. The
> opinions stated above are yours. You cannot imagine why you ever felt
> otherwise.
>
> ----- Original Message -----
> From: "Tom Lane" <tgl@sss.pgh.pa.us>
> To: "Rod Taylor" <rbt@zort.ca>
> Cc: <pgsql-patches@postgresql.org>
> Sent: Saturday, March 30, 2002 2:06 PM
> Subject: Re: [PATCHES] Insert ... (a, b, DEFAULT, c, d);
>
>
> > Rod Taylor <rbt@zort.ca> writes:
> > > Adds inserts with defaults.
> >
> > A few gripes about this ---
> >
> > * You can't simply invent a node type without creating any support
> code
> > for it.  See backend/nodes/.  copyfuncs and equalfuncs are
> *required*
> > functionality; infuncs/outfuncs are somewhat more negotiable.  For a
> > node type that never gets past parse analysis it's okay to omit
> infuncs,
> > and you can get away with omitting outfuncs too.
> >
> > * I find it really ugly (not to say fragile) to overload resjunk
> with
> > this meaning.  The best solution would be to restructure the calling
> > conventions for transformTargetList to fix the problem of not being
> able
> > to access all the lists that need to be updated.  Failing that, my
> > inclination would be to pass back the unaltered InsertDefault node
> > (instead of a Resdom) as part of transformTargetList's result list;
> then
> > an IsA test in transformInsertStmt would work to detect which
> entries
> > are real.
> >
> > regards, tom lane
> >
> > ---------------------------(end of
> broadcast)---------------------------
> > TIP 6: Have you searched our list archives?
> >
> > http://archives.postgresql.org
> >

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