pgsql: Initial SQL/XML support: xml data type and initial set of

Log Message:
-----------
Initial SQL/XML support: xml data type and initial set of functions.

Modified Files:
--------------
pgsql:
configure (r1.525 -> r1.526)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/configure.diff?r1=1.525&r2=1.526)
configure.in (r1.492 -> r1.493)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/configure.in.diff?r1=1.492&r2=1.493)
pgsql/doc/src/sgml:
datatype.sgml (r1.181 -> r1.182)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/datatype.sgml.diff?r1=1.181&r2=1.182)
func.sgml (r1.347 -> r1.348)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/func.sgml.diff?r1=1.347&r2=1.348)
installation.sgml (r1.268 -> r1.269)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/installation.sgml.diff?r1=1.268&r2=1.269)
pgsql/src/backend/executor:
execQual.c (r1.199 -> r1.200)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/executor/execQual.c.diff?r1=1.199&r2=1.200)
pgsql/src/backend/nodes:
copyfuncs.c (r1.354 -> r1.355)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/nodes/copyfuncs.c.diff?r1=1.354&r2=1.355)
equalfuncs.c (r1.288 -> r1.289)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/nodes/equalfuncs.c.diff?r1=1.288&r2=1.289)
outfuncs.c (r1.286 -> r1.287)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/nodes/outfuncs.c.diff?r1=1.286&r2=1.287)
readfuncs.c (r1.196 -> r1.197)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/nodes/readfuncs.c.diff?r1=1.196&r2=1.197)
pgsql/src/backend/optimizer/util:
clauses.c (r1.223 -> r1.224)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/optimizer/util/clauses.c.diff?r1=1.223&r2=1.224)
pgsql/src/backend/parser:
gram.y (r2.568 -> r2.569)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/parser/gram.y.diff?r1=2.568&r2=2.569)
keywords.c (r1.177 -> r1.178)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/parser/keywords.c.diff?r1=1.177&r2=1.178)
parse_coerce.c (r2.147 -> r2.148)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/parser/parse_coerce.c.diff?r1=2.147&r2=2.148)
parse_expr.c (r1.199 -> r1.200)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/parser/parse_expr.c.diff?r1=1.199&r2=1.200)
parse_target.c (r1.149 -> r1.150)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/parser/parse_target.c.diff?r1=1.149&r2=1.150)
pgsql/src/backend/utils/adt:
Makefile (r1.60 -> r1.61)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/Makefile.diff?r1=1.60&r2=1.61)
ruleutils.c (r1.235 -> r1.236)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/ruleutils.c.diff?r1=1.235&r2=1.236)
pgsql/src/backend/utils/mb:
mbutils.c (r1.59 -> r1.60)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/mb/mbutils.c.diff?r1=1.59&r2=1.60)
pgsql/src/include:
pg_config.h.in (r1.106 -> r1.107)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/pg_config.h.in.diff?r1=1.106&r2=1.107)
pgsql/src/include/catalog:
pg_cast.h (r1.26 -> r1.27)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/catalog/pg_cast.h.diff?r1=1.26&r2=1.27)
pg_proc.h (r1.430 -> r1.431)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/catalog/pg_proc.h.diff?r1=1.430&r2=1.431)
pg_type.h (r1.172 -> r1.173)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/catalog/pg_type.h.diff?r1=1.172&r2=1.173)
pgsql/src/include/nodes:
execnodes.h (r1.162 -> r1.163)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/nodes/execnodes.h.diff?r1=1.162&r2=1.163)
nodes.h (r1.188 -> r1.189)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/nodes/nodes.h.diff?r1=1.188&r2=1.189)
primnodes.h (r1.118 -> r1.119)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/nodes/primnodes.h.diff?r1=1.118&r2=1.119)
pgsql/src/include/parser:
parse_coerce.h (r1.66 -> r1.67)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/parser/parse_coerce.h.diff?r1=1.66&r2=1.67)
pgsql/src/include/utils:
errcodes.h (r1.20 -> r1.21)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/utils/errcodes.h.diff?r1=1.20&r2=1.21)
pgsql/src/test/regress:
parallel_schedule (r1.35 -> r1.36)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/parallel_schedule.diff?r1=1.35&r2=1.36)
serial_schedule (r1.33 -> r1.34)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/serial_schedule.diff?r1=1.33&r2=1.34)
pgsql/src/test/regress/expected:
opr_sanity.out (r1.68 -> r1.69)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/expected/opr_sanity.out.diff?r1=1.68&r2=1.69)
prepare.out (r1.11 -> r1.12)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/expected/prepare.out.diff?r1=1.11&r2=1.12)
rules.out (r1.122 -> r1.123)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/expected/rules.out.diff?r1=1.122&r2=1.123)
pgsql/src/test/regress/sql:
opr_sanity.sql (r1.54 -> r1.55)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/sql/opr_sanity.sql.diff?r1=1.54&r2=1.55)

Added Files:
-----------
pgsql/src/backend/utils/adt:
xml.c (r1.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/xml.c?rev=1.1&content-type=text/x-cvsweb-markup)
pgsql/src/include/utils:
xml.h (r1.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/utils/xml.h?rev=1.1&content-type=text/x-cvsweb-markup)
pgsql/src/test/regress/expected:
xml.out (r1.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/expected/xml.out?rev=1.1&content-type=text/x-cvsweb-markup)
xml_1.out (r1.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/expected/xml_1.out?rev=1.1&content-type=text/x-cvsweb-markup)
pgsql/src/test/regress/sql:
xml.sql (r1.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/sql/xml.sql?rev=1.1&content-type=text/x-cvsweb-markup)