Viktor Dukhovni:
> On Fri, Sep 12, 2014 at 08:41:28AM +0200, Roel van Meer wrote:
>
> > Attached is the new patch. Sorry about the confusion.
> > This one has some documentation changes as well.
>
> Have not read the patch in detail. Quick note though, in databases
> "JOIN" is rather different from "UNION". The "pipemap" is a JOIN,
> your proposal is a UNION, and calling it "join" will cause confusion.
Are you sure? The pipemap query becomes the input for the first
database query, then the first output becomes the input for the
second database query, and the last database query output becomes
the final result.
The proposed feature joins multiple strings. It is similar to,
for example, the Perl and Python join() primitives, which implement
the inverse of their respective split() primitives.
In database context, join means something different (compose one
table from multiple tables, based on a common key). The proposed
feature kind-of does that, no?
Wietse
