pgbulkload - pgbulkload: Fix when an error skipped, memory consumptions

Log Message:
-----------
Fix when an error skipped, memory consumptions continue increasing.
Fix the case which is not retrieve by index scan after a load.

Modified Files:
--------------
pgbulkload/bin/expected:
init.out (r1.6 -> r1.7)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/init.out?r1=1.6&r2=1.7)
load_bin.out (r1.10 -> r1.11)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_bin.out?r1=1.10&r2=1.11)
load_function-9.0.out (r1.4 -> r1.5)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_function-9.0.out?r1=1.4&r2=1.5)
load_function-9.1.out (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_function-9.1.out?r1=1.2&r2=1.3)
load_parallel.out (r1.12 -> r1.13)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/load_parallel.out?r1=1.12&r2=1.13)
pgbulkload/bin/sql:
init.sql (r1.6 -> r1.7)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/sql/init.sql?r1=1.6&r2=1.7)
load_bin.sql (r1.4 -> r1.5)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/sql/load_bin.sql?r1=1.4&r2=1.5)
pgbulkload/include:
logger.h (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/include/logger.h?r1=1.2&r2=1.3)
pg_bulkload.h (r1.18 -> r1.19)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/include/pg_bulkload.h?r1=1.18&r2=1.19)
reader.h (r1.17 -> r1.18)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/include/reader.h?r1=1.17&r2=1.18)
pgbulkload/lib:
logger.c (r1.4 -> r1.5)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/lib/logger.c?r1=1.4&r2=1.5)
parser_csv.c (r1.16 -> r1.17)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/lib/parser_csv.c?r1=1.16&r2=1.17)
pg_btree.c (r1.21 -> r1.22)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/lib/pg_btree.c?r1=1.21&r2=1.22)
pg_bulkload.c (r1.23 -> r1.24)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/lib/pg_bulkload.c?r1=1.23&r2=1.24)
pg_bulkload.sql.in (r1.11 -> r1.12)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/lib/pg_bulkload.sql.in?r1=1.11&r2=1.12)
reader.c (r1.22 -> r1.23)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/lib/reader.c?r1=1.22&r2=1.23)
source.c (r1.7 -> r1.8)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/lib/source.c?r1=1.7&r2=1.8)
writer_direct.c (r1.11 -> r1.12)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/lib/writer_direct.c?r1=1.11&r2=1.12)
writer_parallel.c (r1.14 -> r1.15)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/lib/writer_parallel.c?r1=1.14&r2=1.15)