[Pgpool-committers] pgpool - pgpool-II: Fix pool_do_parallel_query and pool_parallel_exec so

[User Kitagawa]

Log Message:
-----------
Fix pool_do_parallel_query and pool_parallel_exec so that parallel mode works.
Rename pool_status_stmt flag to skip_reading_from_backends.

Modified Files:
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    pgpool-II:
        pool_process_query.c (r1.239 -> r1.240)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_process_query.c?r1=1.239&r2=1.240)
        pool_proto_modules.c (r1.80 -> r1.81)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_proto_modules.c?r1=1.80&r2=1.81)
        pool_rewrite_query.c (r1.19 -> r1.20)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_rewrite_query.c?r1=1.19&r2=1.20)
        pool_session_context.c (r1.22 -> r1.23)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_session_context.c?r1=1.22&r2=1.23)
        pool_session_context.h (r1.17 -> r1.18)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_session_context.h?r1=1.17&r2=1.18)