Re: [Exim] regexp lookups from a file

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Author: Philip Hazel
Date:  
To: Tony Finch
CC: exim-users
Subject: Re: [Exim] regexp lookups from a file
On Tue, 5 Nov 2002, Tony Finch wrote:

> I can't find anything that says that explicitly. I would expect that
> kind of thing to be at the start of Chapter 9 or Section 9.1.


Maybe not in the manual, but I certainly say it in my courses, and The
Book contains this sentence: "When a file of lookup data is large,
searching it linearly is inefficient, and it is better to convert the
data into one of the other single-key formats in which an index is used
for faster lookup."

--
Philip Hazel            University of Cambridge Computing Service,
ph10@???      Cambridge, England. Phone: +44 1223 334714.