Log Message:-----------Docs updates for cross-type hashing.
Modified Files:-------------- pgsql/doc/src/sgml: xindex.sgml (r1.58 -> r1.59) (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/xindex.sgml.diff?r1=1.58&r2=1.59) xoper.sgml (r1.41 -> r1.42) (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/xoper.sgml.diff?r1=1.41&r2=1.42)