Concurrent MERGE

Looks like MERGE is progressing well.

At 2010 Dev Mtg, we put me down to work on making merge work
concurrently. That was garbled slightly and had me down as working on
predicate locking which is the general solution to the problem.

Do we still need me to work on concurrent MERGE, or is that included in
the current MERGE patch (can't see it), or is that covered elsewhere
(for example Kevin Grittner's recent work)?

Still happy to do work as proposed, just checking still required.

Thanks,

-- Simon Riggs           www.2ndQuadrant.comPostgreSQL Development, 24x7 Support, Training and Services