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From: Hiroshi Inoue <inoue@tpf.co.jp>
To: 'Dave Page' <dpage@vale-housing.co.uk>
Cc: tgl@sss.pgh.pa.us
Cc: ZeugswetterA@spardat.at
Cc: pgman@candle.pha.pa.us
Cc: pgsql-hackers@postgresql.org
Cc: pgsql-interfaces@postgresql.org
Subject: Re: Roadmap for FE/BE protocol redesign
Date: Fri, 14 Mar 2003 06:46:31 +0900
Message-ID: <002f01c2e9aa$02e13160$0e283ddb@PbgX> (raw)
In-Reply-To: <03AF4E498C591348A42FC93DEA9661B8259DA3@mail.vale-housing.co.uk>

> -----Original Message-----
> From: Dave Page
> 
> > -----Original Message-----
> > From: Hiroshi Inoue [mailto:Inoue@tpf.co.jp] 
> > Sent: 13 March 2003 10:04
> > To: Dave Page
> > Cc: tgl@sss.pgh.pa.us; ZeugswetterA@spardat.at; 
> > pgman@candle.pha.pa.us; pgsql-hackers@postgresql.org; 
> > pgsql-interfaces@postgresql.org
> > Subject: Re: [HACKERS] Roadmap for FE/BE protocol redesign
> > 
> > 
> > Dave Page wrote:
> > > 
> > > It's rumoured that Hiroshi Inoue once said:
> > > >
> > > > Does looking up by the catalog keys take no cost ?
> > > 
> > > Obviously there is cost, but doing a lookup only on demand, 
> > has got to 
> > > be cheaper in the long run than including the entire column 
> > definition 
> > > in the message whether it's wanted or not?
> > 
> > So if there are 100 fields, should we ask the backend 
> > the column name 100 times ?
> 
> No, the column name is there already. 

The column name isn't there. If a field has its alias name the alias
is there.

regards,
Hiroshi Inoue 

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