Viktor Dukhovni:
> On Wed, Sep 10, 2014 at 04:51:31PM +0200, Roel van Meer wrote:
>
> > Would it be difficult to extend the pipemap functionality so it does a
> > lookup in the second map for each of the results produced by the first map?
>
> Unfortunately, yes. The Postfix dictionary abstraction is a simple
> key->value service, and has no notion of "multiple-results".
>
> The various *SQL and LDAP tables internally concatenate multiple
> query results into a single comma-separated string and hope that's
> useful. The higher layers see a single output string.
>
> The dictionary API would have to be redesigned to support a list of
> results, with LDAP, ... returning a list instead of a single comma
> separated string. This is a major change.
Not only in table APIs, but also in programs that use those tables.
What should output from "postmap -q -" look like when applied to a
list of lookup keys? The output already uses newline to separate
one lookup result from the next lookup result. JSON objects?
Wietse
