[Pgpool-committers] pgpool - pgpool-II: Fix SimpleForwardToFrontend so that it doesn't use

[User Kitagawa]

Log Message:
-----------
Fix SimpleForwardToFrontend so that it doesn't use session context.
Move parts of SimpleForwardToFrontend to CommandComplete.
Move query_cache_register to pool_proto_modules.c.
Move extract_ntuples to pool_proto_modules.c.

SimpleForwardToFrontend is called by do_auth, when there isn't session context.
This causes error such as following.

ex) template3 is a wrong DB name.
$ psql -p 9999 template3 postgres
psql: server closed the connection unexpectedly...

Modified Files:
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    pgpool-II:
        pool_process_query.c (r1.247 -> r1.248)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_process_query.c?r1=1.247&r2=1.248)
        pool_proto_modules.c (r1.83 -> r1.84)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_proto_modules.c?r1=1.83&r2=1.84)
        pool_proto_modules.h (r1.22 -> r1.23)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_proto_modules.h?r1=1.22&r2=1.23)