pgsql: Add test case for two phase commit. Also by Masahiko Sawada.

Add test case for two phase commit. Also by Masahiko Sawada.

Branch
------
master

Details
-------
http://git.postgresql.org/pg/commitdiff/42fcad68a9c0e0ebecf6842888723cad1f9d5be2

Modified Files
--------------
src/interfaces/ecpg/test/ecpg_schedule             |   1 +
src/interfaces/ecpg/test/expected/sql-twophase.c   | 114 +++++++++++++++++++++
.../ecpg/test/expected/sql-twophase.stderr         |  34 ++++++
.../ecpg/test/expected/sql-twophase.stdout         |   0
src/interfaces/ecpg/test/sql/Makefile              |   1 +
src/interfaces/ecpg/test/sql/twophase.pgc          |  44 ++++++++
6 files changed, 194 insertions(+)