pgsql: Done: < * Allow the creation of indexes with mixed

Log Message:
-----------
Done:

< * Allow the creation of indexes with mixed ascending/descending
> * -Allow the creation of indexes with mixed ascending/descending
<
<   This is possible now by creating an operator class with reversed sort
<   operators.  One complexity is that NULLs would then appear at the start
<   of the result set, and this might affect certain sort types, like
<   merge join.
<

Modified Files:
--------------
    pgsql/doc:
        TODO (r1.2031 -> r1.2032)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/TODO.diff?r1=1.2031&r2=1.2032)
    pgsql/doc/src/FAQ:
        TODO.html (r1.533 -> r1.534)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/FAQ/TODO.html.diff?r1=1.533&r2=1.534)