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More cleanup of Diagnostics sections.

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This commit is contained in:
Tom Lane
2003-09-12 00:12:47 +00:00
parent fbb39c059e
commit e90b841915
29 changed files with 346 additions and 771 deletions
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49
doc/src/sgml/ref/create_view.sgml
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@@ -1,5 +1,5 @@
<!--
$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_view.sgml,v 1.23 2003/08/31 17:32:22 petere Exp $
$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_view.sgml,v 1.24 2003/09/12 00:12:47 tgl Exp $
PostgreSQL documentation
-->
@@ -90,39 +90,6 @@ class="PARAMETER">column_name</replaceable> [, ...] ) ] AS <replaceable class="P
</variablelist>
</refsect1>
<refsect1>
<title>Diagnostics</title>
<variablelist>
<varlistentry>
<term><computeroutput>CREATE VIEW</computeroutput></term>
<listitem>
<para>
Message returned if the view was successfully created.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><computeroutput>WARNING: Attribute '<replaceable class="parameter">column</replaceable>' has an unknown type</computeroutput></term>
<listitem>
<para>
The view will be created having a column with an unknown type if
you do not specify it. For example, the following command gives
this warning:
<programlisting>
CREATE VIEW vista AS SELECT 'Hello World'
</programlisting>
whereas this command does not:
<programlisting>
CREATE VIEW vista AS SELECT text 'Hello World'
</programlisting>
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Notes</title>
@@ -137,6 +104,20 @@ CREATE VIEW vista AS SELECT text 'Hello World'
<para>
Use the <command>DROP VIEW</command> statement to drop views.
</para>
<para>
Be careful that the names and types of the view's columns will be
assigned the way you want. For example,
<programlisting>
CREATE VIEW vista AS SELECT 'Hello World';
</programlisting>
is bad form in two ways: the column name defaults to <literal>?column?</>,
and the column datatype defaults to <type>unknown</>. If you want a
string literal in a view's result, use something like
<programlisting>
CREATE VIEW vista AS SELECT text 'Hello World' AS hello;
</programlisting>
</para>
</refsect1>
<refsect1>