pgsql: Allow per-column foreign data wrapper options.

Allow per-column foreign data wrapper options.

Shigeru Hanada, with fairly minor editing by me.

Branch
------
master

Details
-------
http://git.postgresql.org/pg/commitdiff/c4096c76399ad99dce35cd62f60599ea8748a3dd

Modified Files
--------------
doc/src/sgml/catalogs.sgml                 |    9 +++
doc/src/sgml/information_schema.sgml       |   63 ++++++++++++++++
doc/src/sgml/ref/alter_foreign_table.sgml  |   10 ++-
doc/src/sgml/ref/create_foreign_table.sgml |    8 ++-
doc/src/sgml/ref/psql-ref.sgml             |    6 ++
src/backend/access/common/tupdesc.c        |    4 +-
src/backend/catalog/genbki.pl              |    4 +-
src/backend/catalog/heap.c                 |    3 +-
src/backend/catalog/information_schema.sql |   33 +++++++++
src/backend/commands/tablecmds.c           |  106 ++++++++++++++++++++++++++++
src/backend/nodes/copyfuncs.c              |    1 +
src/backend/nodes/outfuncs.c               |    1 +
src/backend/parser/gram.y                  |   14 +++-
src/backend/parser/parse_utilcmd.c         |   25 +++++++
src/bin/pg_dump/pg_dump.c                  |   60 ++++++++++++++--
src/bin/pg_dump/pg_dump.h                  |    1 +
src/bin/psql/describe.c                    |   22 +++++-
src/include/catalog/catversion.h           |    2 +-
src/include/catalog/pg_attribute.h         |    6 ++-
src/include/catalog/pg_class.h             |    2 +-
src/include/nodes/parsenodes.h             |    2 +
src/test/regress/expected/foreign_data.out |   61 +++++++++++-----
src/test/regress/sql/foreign_data.sql      |   11 ++-
23 files changed, 407 insertions(+), 47 deletions(-)