[Pgpool-committers] pgpool - pgpool-II: Add memory_context variable.

[User Kitagawa]

Log Message:
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Add memory_context variable.
Add query_state variable that represent state of extended query.
Add function pool_set_query_state().
Add support for "NO LOAD BALANCE" comment.
Remove unused variables.

Modified Files:
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    pgpool-II:
        pool_query_context.h (r1.7 -> r1.8)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_query_context.h?r1=1.7&r2=1.8)
        pool_query_context.c (r1.18 -> r1.19)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_query_context.c?r1=1.18&r2=1.19)