Sorry, I swapped | for + in the last message.
On Aug 18, 2013 5:01 PM, "David MacMahon" <davidm / astro.berkeley.edu> wrote:

>
> On Aug 18, 2013, at 12:34 PM, fuadksd (Fuad Saud) wrote:
>
> > Matz rejected (({+})) for merging, as it is different than addition.
>
> My understanding was that Matz rejected #+ for merging because of a
> concern about how to resolve key conflicts.  Maybe his concern can be
> addressed by providing two Hash operators (e.g. #| for reverse_merge-like
> behavior and #+ for merge-like behavior) each with distinct and well
> defined resolutions for conflicting keys.
>
> Dave
>
>