Re: [Exim] local domains pgsql lookup misbehaving

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Autor: Philip Hazel
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A: Paul Slootman
CC: exim-users
Assumpte: Re: [Exim] local domains pgsql lookup misbehaving
On Thu, 6 Nov 2003, Paul Slootman wrote:

> > The lookup;-style checks for SOMETHING to be returned, NOT for the value
> > itself. The above should work.
>
> So exim has no way of obtaining a LIST of local domains at startup from
> a postgresql database?


It does. Just use a string expansion:

domains = ${lookup pgsql{...your query here....}}

The query should return a list of domains, colon separated. If the
separator is something else, you can use ${sg.... on the result to
convert the separators, or use the <; mechanism for specifying a
different separator.

Summary:

1.  The   "lookup-type;query..."   style of list item is using a lookup
    as a quick means of indexing into a list.


2.  The   "${lookup...."   style of list item is a way of storing a list
    in a database.


If you were really weird, you could use an item of type 2 that returned
an item of type 1!


--
Philip Hazel            University of Cambridge Computing Service,
ph10@???      Cambridge, England. Phone: +44 1223 334714.
Get the Exim 4 book:    http://www.uit.co.uk/exim-book