pgbulkload - pgbulkload: Fix a bug that avoid deadlock in case of

Log Message:
-----------
Fix a bug that avoid deadlock in case of "WRITER=PARALLEL" and "TYPE=FUNCTION"
and input function is RETURNS SETOF record LANGUAGE C.

Modified Files:
--------------
pgbulkload:
Makefile (r1.4 -> r1.5)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/Makefile?r1=1.4&r2=1.5)
pgbulkload/bin:
postgresql (r1.8 -> r1.9)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/postgresql?r1=1.8&r2=1.9)
pgbulkload/bin/expected:
load_bin.out (r1.12 -> r1.13)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_bin.out?r1=1.12&r2=1.13)
load_check.out (r1.5 -> r1.6)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_check.out?r1=1.5&r2=1.6)
load_csv.out (r1.13 -> r1.14)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_csv.out?r1=1.13&r2=1.14)
load_encoding.out (r1.5 -> r1.6)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_encoding.out?r1=1.5&r2=1.6)
load_filter-8.3.out (r1.5 -> r1.6)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_filter-8.3.out?r1=1.5&r2=1.6)
load_filter-8.4.out (r1.5 -> r1.6)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_filter-8.4.out?r1=1.5&r2=1.6)
load_filter-9.0.out (r1.5 -> r1.6)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_filter-9.0.out?r1=1.5&r2=1.6)
load_filter-9.1.out (r1.3 -> r1.4)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_filter-9.1.out?r1=1.3&r2=1.4)
load_function-8.3.out (r1.5 -> r1.6)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_function-8.3.out?r1=1.5&r2=1.6)
load_function-8.4.out (r1.5 -> r1.6)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_function-8.4.out?r1=1.5&r2=1.6)
load_function-9.0.out (r1.6 -> r1.7)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_function-9.0.out?r1=1.6&r2=1.7)
load_function-9.1.out (r1.4 -> r1.5)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_function-9.1.out?r1=1.4&r2=1.5)
load_parallel.out (r1.14 -> r1.15)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_parallel.out?r1=1.14&r2=1.15)
load_remote.out (r1.13 -> r1.14)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_remote.out?r1=1.13&r2=1.14)
pgbulkload/include:
common.h (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/include/common.h?r1=1.2&r2=1.3)
pgbulkload/lib:
parser_function.c (r1.9 -> r1.10)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/lib/parser_function.c?r1=1.9&r2=1.10)
pg_bulkload.c (r1.24 -> r1.25)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/lib/pg_bulkload.c?r1=1.24&r2=1.25)
reader.c (r1.23 -> r1.24)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/lib/reader.c?r1=1.23&r2=1.24)
writer_direct.c (r1.13 -> r1.14)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/lib/writer_direct.c?r1=1.13&r2=1.14)