[Pgpool-committers] pgpool - pgpool-II: Fix send_to_where() so that it correctly recognizes

[User T-ishii]

Log Message:
-----------
Fix send_to_where() so that it correctly recognizes FOR SHARE/UPDATE
clause even if it's in subquery. Before it only recognized
when the clause was in top level of SELECT. For this new function
pool_has_insertinto_or_locking_clause() is added.

Tags:
----
V3_0_STABLE

Modified Files:
--------------
    pgpool-II:
        pool_query_context.c (r1.32.2.9 -> r1.32.2.10)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_query_context.c?r1=1.32.2.9&r2=1.32.2.10)
        pool_select_walker.c (r1.6.2.3 -> r1.6.2.4)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_select_walker.c?r1=1.6.2.3&r2=1.6.2.4)
        pool_select_walker.h (r1.4 -> r1.4.2.1)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_select_walker.h?r1=1.4&r2=1.4.2.1)