On Mon, Apr 25, 2011 at 03:16:42PM +0200, Reindl Harald wrote:
> > No, in both cases '%s' is the lookup key and '%d' is its domain part, if
> > the lookup key is an address of the form localpart@domain. When '%d' or
> > '%u' is used in the query template, lookups with keys that are not of the
> > form 'localpart@domain' are suppressed.
>
> you said the same as i in other words :-)
No, I said that Postfix tables work with lookup keys and lookup values,
not with higher semantic constructs such as sender vs. recipient addresses.
> sometimes it would be really useful to build a query
> depending on sender AND rcpt whis is AFAIK not possible
Not possible, because Postfix table driven mechanisms (virtual(5),
generic(5), access(5), ...) are implemented over a key/value table
abstraction layer that supports multiple implementations:
- CDB
- Berkeley DB "hash" and "btree"
- Legacy DBM
- LDAP
- PgSQL
- MySQL
- SQLite
...
In all cases the table driven mechanisms just see a key/value table, and
don't know anything about the internal capabilities of the table driver.
In addition, tables don't know the semantics of the keys or values.
--
Viktor.
