pgsql: More minor updates and copy-editing.

Log Message:
-----------
More minor updates and copy-editing.

Modified Files:
--------------
pgsql/doc/src/sgml/ref:
alter_database.sgml (r1.13 -> r1.14)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/alter_database.sgml.diff?r1=1.13&r2=1.14)
alter_group.sgml (r1.14 -> r1.15)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/alter_group.sgml.diff?r1=1.14&r2=1.15)
alter_table.sgml (r1.74 -> r1.75)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/alter_table.sgml.diff?r1=1.74&r2=1.75)
alter_user.sgml (r1.34 -> r1.35)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/alter_user.sgml.diff?r1=1.34&r2=1.35)
checkpoint.sgml (r1.12 -> r1.13)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/checkpoint.sgml.diff?r1=1.12&r2=1.13)
close.sgml (r1.21 -> r1.22)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/close.sgml.diff?r1=1.21&r2=1.22)
cluster.sgml (r1.34 -> r1.35)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/cluster.sgml.diff?r1=1.34&r2=1.35)
comment.sgml (r1.25 -> r1.26)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/comment.sgml.diff?r1=1.25&r2=1.26)
copy.sgml (r1.62 -> r1.63)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/copy.sgml.diff?r1=1.62&r2=1.63)
create_aggregate.sgml (r1.30 -> r1.31)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/create_aggregate.sgml.diff?r1=1.30&r2=1.31)
create_domain.sgml (r1.19 -> r1.20)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/create_domain.sgml.diff?r1=1.19&r2=1.20)
create_function.sgml (r1.63 -> r1.64)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/create_function.sgml.diff?r1=1.63&r2=1.64)
create_group.sgml (r1.14 -> r1.15)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/create_group.sgml.diff?r1=1.14&r2=1.15)
create_index.sgml (r1.50 -> r1.51)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/create_index.sgml.diff?r1=1.50&r2=1.51)
create_language.sgml (r1.38 -> r1.39)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/create_language.sgml.diff?r1=1.38&r2=1.39)
create_operator.sgml (r1.43 -> r1.44)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/create_operator.sgml.diff?r1=1.43&r2=1.44)
create_rule.sgml (r1.44 -> r1.45)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/create_rule.sgml.diff?r1=1.44&r2=1.45)
create_schema.sgml (r1.16 -> r1.17)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/create_schema.sgml.diff?r1=1.16&r2=1.17)
create_table.sgml (r1.88 -> r1.89)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/create_table.sgml.diff?r1=1.88&r2=1.89)
create_table_as.sgml (r1.26 -> r1.27)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/create_table_as.sgml.diff?r1=1.26&r2=1.27)
create_type.sgml (r1.53 -> r1.54)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/create_type.sgml.diff?r1=1.53&r2=1.54)
create_user.sgml (r1.33 -> r1.34)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/create_user.sgml.diff?r1=1.33&r2=1.34)
create_view.sgml (r1.28 -> r1.29)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/create_view.sgml.diff?r1=1.28&r2=1.29)
declare.sgml (r1.32 -> r1.33)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/declare.sgml.diff?r1=1.32&r2=1.33)
delete.sgml (r1.20 -> r1.21)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/delete.sgml.diff?r1=1.20&r2=1.21)
drop_group.sgml (r1.8 -> r1.9)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/drop_group.sgml.diff?r1=1.8&r2=1.9)
drop_sequence.sgml (r1.21 -> r1.22)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/drop_sequence.sgml.diff?r1=1.21&r2=1.22)
drop_table.sgml (r1.21 -> r1.22)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/drop_table.sgml.diff?r1=1.21&r2=1.22)
drop_user.sgml (r1.19 -> r1.20)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/drop_user.sgml.diff?r1=1.19&r2=1.20)
drop_view.sgml (r1.20 -> r1.21)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/drop_view.sgml.diff?r1=1.20&r2=1.21)
explain.sgml (r1.34 -> r1.35)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/explain.sgml.diff?r1=1.34&r2=1.35)
fetch.sgml (r1.37 -> r1.38)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/fetch.sgml.diff?r1=1.37&r2=1.38)
insert.sgml (r1.27 -> r1.28)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/insert.sgml.diff?r1=1.27&r2=1.28)
load.sgml (r1.20 -> r1.21)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/load.sgml.diff?r1=1.20&r2=1.21)
lock.sgml (r1.44 -> r1.45)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/lock.sgml.diff?r1=1.44&r2=1.45)
move.sgml (r1.28 -> r1.29)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/move.sgml.diff?r1=1.28&r2=1.29)
notify.sgml (r1.26 -> r1.27)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/notify.sgml.diff?r1=1.26&r2=1.27)