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Clarify documentation about "peer" rows in window functions

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Peer rows are matching rows when ORDER BY is specified.

Report by arnaud.mouronval@gmail.com, David G Johnston
This commit is contained in:
Bruce Momjian
2014-09-05 18:59:41 -04:00
parent a9c22d1480
commit 1f4d1074c5
3 changed files with 8 additions and 6 deletions
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doc/src/sgml/func.sgml
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@@ -13050,7 +13050,8 @@ SELECT xmlagg(x) FROM (SELECT x FROM test ORDER BY y DESC) AS tab;
<firstterm>Window functions</firstterm> provide the ability to perform
calculations across sets of rows that are related to the current query
row. See <xref linkend="tutorial-window"> for an introduction to this
feature.
feature, and <xref linkend="syntax-window-functions"> for syntax
details.
</para>
<para>