rdelaage
/
postgresql
mirror of https://git.postgresql.org/git/postgresql.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Additional cross-references to window functions documentation. 

Erik Rijkers
This commit is contained in:
Robert Haas 2010-07-03 02:57:46 +00:00
parent 97301ab189
commit 276a8f4e99
3 changed files with 8 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
doc/src/sgml/advanced.sgml
View File

@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/advanced.sgml,v 1.60 2010/04/03 07:22:52 petere Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/advanced.sgml,v 1.61 2010/07/03 02:57:46 rhaas Exp $ -->
<chapter id="tutorial-advanced">
<title>Advanced Features</title>
@ -554,6 +554,7 @@ SELECT sum(salary) OVER w, avg(salary) OVER w
<para>
More details about window functions can be found in
<xref linkend="syntax-window-functions">,
<xref linkend="functions-window">,
<xref linkend="queries-window">, and the
<xref linkend="sql-select"> reference page.
</para>

5
doc/src/sgml/queries.sgml
View File

@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/queries.sgml,v 1.57 2010/04/03 07:22:55 petere Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/queries.sgml,v 1.58 2010/07/03 02:57:46 rhaas Exp $ -->
<chapter id="queries">
<title>Queries</title>
@ -979,7 +979,8 @@ SELECT product_id, p.name, (sum(s.units) * (p.price - p.cost)) AS profit
<para>
If the query contains any window functions (see
<xref linkend="tutorial-window"> and
<xref linkend="tutorial-window">,
<xref linkend="functions-window"> and
<xref linkend="syntax-window-functions">), these functions are evaluated
after any grouping, aggregation, and <literal>HAVING</> filtering is
performed. That is, if the query uses any aggregates, <literal>GROUP

5
doc/src/sgml/syntax.sgml
View File

@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/syntax.sgml,v 1.146 2010/06/09 16:43:47 alvherre Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/syntax.sgml,v 1.147 2010/07/03 02:57:46 rhaas Exp $ -->
<chapter id="sql-syntax">
<title>SQL Syntax</title>
@ -1761,7 +1761,8 @@ UNBOUNDED FOLLOWING
<para>
More information about window functions can be found in
<xref linkend="tutorial-window"> and
<xref linkend="tutorial-window">,
<xref linkend="functions-window">,
<xref linkend="queries-window">.
</para>
</sect2>