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Clean up some bogosities in description of target lists.

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This commit is contained in:
Tom Lane 2000-12-16 18:22:53 +00:00
parent 9cf0a82fc3
commit cf00d59335
1 changed files with 8 additions and 11 deletions
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19
doc/src/sgml/syntax.sgml
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@ -1,5 +1,5 @@
<!--
$Header: /cvsroot/pgsql/doc/src/sgml/syntax.sgml,v 1.26 2000/12/14 22:30:56 petere Exp $
$Header: /cvsroot/pgsql/doc/src/sgml/syntax.sgml,v 1.27 2000/12/16 18:22:53 tgl Exp $
-->
<chapter id="syntax">
@ -791,7 +791,7 @@ sqrt(emp.salary)
<para>
A <firstterm>target list</firstterm>
is a parenthesized, comma-separated list of one or more elements, each
is a comma-separated list of one or more elements, each
of which must be of the form:
<synopsis>
@ -799,16 +799,13 @@ sqrt(emp.salary)
</synopsis>
where <replaceable>result_attname</replaceable>
is the name of the attribute to be created (or an
already existing attribute name in the case of update statements.) If
is the name to be assigned to the created column. If
<replaceable>result_attname</replaceable>
is not present, then
<replaceable>a_expr</replaceable>
must contain only one attribute name which is assumed to be the name
of the result field. In <productname>Postgres</productname>
default naming is only used if
<replaceable>a_expr</replaceable>
is an attribute.
is not present, then <productname>Postgres</productname> selects a
default name based on the contents of <replaceable>a_expr</replaceable>.
If <replaceable>a_expr</replaceable> is a simple attribute reference
then the default name will be the same as that attribute's name, but
otherwise the implementation is free to assign any default name.
</para>
</sect2>