[Pgpool-committers] pgpool - pgpool-II: Support 2PC commands in SR+HS mode.

[User T-ishii]

Log Message:
-----------
Support 2PC commands in SR+HS mode.
Import read/write query map from PostgreSQL 9.0. Although our parser
does not support:
T_AlterDefaultPrivilegesStmt
T_DoStmt
T_AlterTableSpaceOptionsStmt

Modified Files:
--------------
    pgpool-II:
        pool_proto_modules.c (r1.52 -> r1.53)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_proto_modules.c?r1=1.52&r2=1.53)
        pool_query_context.c (r1.10 -> r1.11)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_query_context.c?r1=1.10&r2=1.11)
        pool_query_context.h (r1.5 -> r1.6)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_query_context.h?r1=1.5&r2=1.6)
        pool_session_context.c (r1.11 -> r1.12)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_session_context.c?r1=1.11&r2=1.12)
        pool_session_context.h (r1.9 -> r1.10)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_session_context.h?r1=1.9&r2=1.10)