pgsql: Allow bidirectional copy messages in streaming replication mode.

Allow bidirectional copy messages in streaming replication mode.

Fujii Masao. Review by Alvaro Herrera, Tom Lane, and myself.

Branch
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master

Details
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http://git.postgresql.org/gitweb?p=postgresql.git;a=commitdiff;h=d3d414696f39e2b57072fab3dd4fa11e465be4ed

Modified Files
--------------
doc/src/sgml/libpq.sgml | 10 ++
doc/src/sgml/protocol.sgml | 98 ++++++++++++++++++-
.../libpqwalreceiver/libpqwalreceiver.c | 22 ++++-
src/backend/replication/walreceiver.c | 3 +-
src/backend/replication/walsender.c | 4 +-
src/include/replication/walreceiver.h | 3 +
src/interfaces/libpq/fe-exec.c | 27 +++++-
src/interfaces/libpq/fe-protocol2.c | 4 +
src/interfaces/libpq/fe-protocol3.c | 18 +++-
src/interfaces/libpq/libpq-fe.h | 1 +
src/interfaces/libpq/libpq-int.h | 3 +-
11 files changed, 172 insertions(+), 21 deletions(-)