From: Warren Young
Date: June 29 2005 5:08pm
Subject: Re: R: field_num("pippo") = ????????
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Paoletti Vincenzo wrote:
> 
> the ref manual advices against uses it of "lookup_by_name" to cause its inefficiency .

lookup_by_name() is inefficient because it's built on field_num().

If efficiency is a concern, you shouldn't be looking up fields by name 
at all.  You should be using hard-coded indices into a Row array, or 
SSQLS instead.

I've sent this to the mailing list, because the discussion should have 
been kept there, and it's good info for the archives.