From c6ce4c13229c64c01393c86be220b532a0244d87 Mon Sep 17 00:00:00 2001
From: Bruce Momjian <bruce@momjian.us>
Date: Thu, 16 Aug 2012 11:32:22 -0400
Subject: [PATCH] In docs, clarify that, without ORDER BY, the window frame is
all rows in the partition.
---
doc/src/sgml/syntax.sgml | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/doc/src/sgml/syntax.sgml b/doc/src/sgml/syntax.sgml
index a01f9b5fc4e..067c31b2d87 100644
--- a/doc/src/sgml/syntax.sgml
+++ b/doc/src/sgml/syntax.sgml
@@ -1794,9 +1794,10 @@ UNBOUNDED FOLLOWING
window functions that act on the frame instead of the whole partition.
The default framing option is <literal>RANGE UNBOUNDED PRECEDING</>,
which is the same as <literal>RANGE BETWEEN UNBOUNDED PRECEDING AND
- CURRENT ROW</>. This sets the frame to be all rows from the partition start
- up through the current row's last peer as specified by <literal>ORDER BY</>,
- or all partition rows if there is no <literal>ORDER BY</>.
+ CURRENT ROW</>. With <literal>ORDER BY</>, this sets the frame to
+ be all rows from partition start up through the current row's
+ last peer. Without <literal>ORDER BY</>, all partition rows are
+ included in the window frame.
</para>
<para>
--
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