reviews not completed and/or additional review needed

We have a number of reviews that have not been completed, and others
that have had basic testing but need code review and/or performance
testing. Volunteers to tackle these would be appreciated. If some
patches end up getting reviewed by the original reviewer as well,
that's OK too. Multiple reviews are good.

Merge Append - assigned to Abhijit Menon-Sen and claimed, but no review posted.

Support for EEEE in to_char() - assigned to Euler Taveira de Oliveira,
but never claimed and no review posted. Dave Fetter did some initial
testing, still needs code review.

COPY WITH CSV FORCE QUOTE * - Josh Berkus did some initial testing,
still needs code review

multi-threaded pgbench - Greg Smith's name is next to this one, but he
didn't respond to email, so may not be planning to review it. So this
one needs code review and performance testing.

Thanks,

...Robert