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minor copy editing

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This commit is contained in:
Peter Eisentraut
2001-03-24 23:03:26 +00:00
parent b420c47434
commit 0967057b5d
11 changed files with 27 additions and 26 deletions
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4
doc/src/sgml/sql.sgml
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@ -1,5 +1,5 @@
<!--
$Header: /cvsroot/pgsql/doc/src/sgml/sql.sgml,v 1.19 2001/02/15 04:10:54 tgl Exp $
$Header: /cvsroot/pgsql/doc/src/sgml/sql.sgml,v 1.20 2001/03/24 23:03:26 petere Exp $
-->
<chapter id="sql">
@ -1410,7 +1410,7 @@ SELECT S.SNO, S.SNAME, COUNT(SE.PNO)
<para>
Also observe that it makes no sense to ask for an aggregate of an
aggregate, eg, AVG(MAX(sno)), because a SELECT only does one pass
aggregate, e.g., AVG(MAX(sno)), because a SELECT only does one pass
of grouping and aggregation. You can get a result of this kind by
using a temporary table or a sub-SELECT in the FROM clause to
do the first level of aggregation.