Fix incorrect markup in documentation of window frame clauses.

Tom Lane <tgl@sss.pgh.pa.us>

Commit: f6caf5acf1def92d7425151a92fd990c566fdcc3
Author: Tom Lane <tgl@sss.pgh.pa.us>
Date: 2015-04-01T00:02:40Z
Releases: 9.5.0
Fix incorrect markup in documentation of window frame clauses.

You're required to write either RANGE or ROWS to start a frame clause,
but the documentation incorrectly implied this is optional.  Noted by
David Johnston.

Files

PathChange+/−
doc/src/sgml/ref/select.sgml modified +2 −2
doc/src/sgml/syntax.sgml modified +2 −2