[Pgpool-committers] pgpool - pgpool-II: Add new function pool_session_context_destroy, which

[User T-ishii]

Log Message:
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Add new function pool_session_context_destroy, which destorys
session context.
Shoould be called at the end of session.
For now it is just called at the very beginning of session.
Also it needs more work to release memory.

Modified Files:
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    pgpool-II:
        child.c (r1.56 -> r1.57)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/child.c?r1=1.56&r2=1.57)
        pool_session_context.c (r1.16 -> r1.17)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_session_context.c?r1=1.16&r2=1.17)
        pool_session_context.h (r1.13 -> r1.14)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_session_context.h?r1=1.13&r2=1.14)