pgsql: Made parser check for valid copy to/from stdin/stdout

Log Message:
-----------
Made parser check for valid copy to/from stdin/stdout combinations.
Lots of small changes in regression test suite

Modified Files:
--------------
pgsql/src/interfaces/ecpg:
ChangeLog (r1.318 -> r1.319)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/ChangeLog.diff?r1=1.318&r2=1.319)
pgsql/src/interfaces/ecpg/ecpglib:
data.c (r1.32 -> r1.33)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/ecpglib/data.c.diff?r1=1.32&r2=1.33)
misc.c (r1.29 -> r1.30)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/ecpglib/misc.c.diff?r1=1.29&r2=1.30)
pgsql/src/interfaces/ecpg/preproc:
preproc.y (r1.327 -> r1.328)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/preproc/preproc.y.diff?r1=1.327&r2=1.328)
pgsql/src/interfaces/ecpg/test:
pg_regress.inc.sh.in (r1.1 -> r1.2)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/pg_regress.inc.sh.in.diff?r1=1.1&r2=1.2)
pg_regress.sh (r1.4 -> r1.5)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/pg_regress.sh.diff?r1=1.4&r2=1.5)
pgsql/src/interfaces/ecpg/test/errors:
init.pgc (r1.3 -> r1.4)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/errors/init.pgc.diff?r1=1.3&r2=1.4)
pgsql/src/interfaces/ecpg/test/expected:
compat_informix-test_informix.stderr (r1.3 -> r1.4)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/expected/compat_informix-test_informix.stderr.diff?r1=1.3&r2=1.4)
compat_informix-test_informix2.stderr (r1.2 -> r1.3)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/expected/compat_informix-test_informix2.stderr.diff?r1=1.2&r2=1.3)
complex-test1.stderr (r1.1 -> r1.2)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/expected/complex-test1.stderr.diff?r1=1.1&r2=1.2)
complex-test2.stderr (r1.1 -> r1.2)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/expected/complex-test2.stderr.diff?r1=1.1&r2=1.2)
complex-test3.stderr (r1.1 -> r1.2)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/expected/complex-test3.stderr.diff?r1=1.1&r2=1.2)
complex-test4.stderr (r1.1 -> r1.2)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/expected/complex-test4.stderr.diff?r1=1.1&r2=1.2)
complex-test5.stderr (r1.1 -> r1.2)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/expected/complex-test5.stderr.diff?r1=1.1&r2=1.2)
connect-test2.stderr (r1.2 -> r1.3)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/expected/connect-test2.stderr.diff?r1=1.2&r2=1.3)
connect-test3.stderr (r1.2 -> r1.3)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/expected/connect-test3.stderr.diff?r1=1.2&r2=1.3)
errors-init.c (r1.3 -> r1.4)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/expected/errors-init.c.diff?r1=1.3&r2=1.4)
errors-init.stderr (r1.2 -> r1.3)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/expected/errors-init.stderr.diff?r1=1.2&r2=1.3)
errors-init.stdout (r1.2 -> r1.3)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/expected/errors-init.stdout.diff?r1=1.2&r2=1.3)
pgtypeslib-dt_test.stderr (r1.3 -> r1.4)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/expected/pgtypeslib-dt_test.stderr.diff?r1=1.3&r2=1.4)
pgtypeslib-num_test.stderr (r1.3 -> r1.4)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/expected/pgtypeslib-num_test.stderr.diff?r1=1.3&r2=1.4)
sql-define.stderr (r1.1 -> r1.2)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/expected/sql-define.stderr.diff?r1=1.1&r2=1.2)
sql-desc.stderr (r1.2 -> r1.3)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/expected/sql-desc.stderr.diff?r1=1.2&r2=1.3)
sql-dynalloc.stderr (r1.2 -> r1.3)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/expected/sql-dynalloc.stderr.diff?r1=1.2&r2=1.3)
sql-dynalloc2.stderr (r1.1 -> r1.2)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/expected/sql-dynalloc2.stderr.diff?r1=1.1&r2=1.2)
sql-dyntest.stderr (r1.1 -> r1.2)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/expected/sql-dyntest.stderr.diff?r1=1.1&r2=1.2)
sql-dyntest2.c (r1.3 -> r1.4)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/expected/sql-dyntest2.c.diff?r1=1.3&r2=1.4)
sql-dyntest2.stderr (r1.3 -> r1.4)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/expected/sql-dyntest2.stderr.diff?r1=1.3&r2=1.4)
sql-dyntest2.stdout (r1.3 -> r1.4)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/expected/sql-dyntest2.stdout.diff?r1=1.3&r2=1.4)
sql-indicators.stderr (r1.1 -> r1.2)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/expected/sql-indicators.stderr.diff?r1=1.1&r2=1.2)
sql-quote.stderr (r1.1 -> r1.2)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/expected/sql-quote.stderr.diff?r1=1.1&r2=1.2)
sql-show.stderr (r1.1 -> r1.2)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/expected/sql-show.stderr.diff?r1=1.1&r2=1.2)
pgsql/src/interfaces/ecpg/test/sql:
dyntest2.pgc (r1.3 -> r1.4)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/test/sql/dyntest2.pgc.diff?r1=1.3&r2=1.4)