Log Message:
-----------
Add support for \x hex escapes in backend strings. Octal was already
supported. This follows the C standard escapes.
Modified Files:
--------------
pgsql/doc/src/sgml:
syntax.sgml (r1.99 -> r1.100)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/syntax.sgml.diff?r1=1.99&r2=1.100)
pgsql/src/backend/parser:
scan.l (r1.122 -> r1.123)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/parser/scan.l.diff?r1=1.122&r2=1.123)