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Document TEMP option.

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Tom Lane 2001-03-03 22:11:40 +00:00
parent 23e41fb7fb
commit aee52a6de3
1 changed files with 21 additions and 5 deletions
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doc/src/sgml/ref/create_table_as.sgml
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@ -1,5 +1,5 @@
<!-- <!--
$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_table_as.sgml,v 1.4 2000/12/25 23:15:26 petere Exp $ $Header: /cvsroot/pgsql/doc/src/sgml/ref/create_table_as.sgml,v 1.5 2001/03/03 22:11:40 tgl Exp $
Postgres documentation Postgres documentation
--> -->
@ -20,10 +20,10 @@ Postgres documentation
</refnamediv> </refnamediv>
<refsynopsisdiv> <refsynopsisdiv>
<refsynopsisdivinfo> <refsynopsisdivinfo>
<date>1999-07-20</date> <date>2001-03-03</date>
</refsynopsisdivinfo> </refsynopsisdivinfo>
<synopsis> <synopsis>
CREATE TABLE <replaceable>table</replaceable> [ (<replaceable>column</replaceable> [, ...] ) ] CREATE [ TEMPORARY | TEMP ] TABLE <replaceable>table</replaceable> [ (<replaceable>column</replaceable> [, ...] ) ]
AS <replaceable>select_clause</replaceable> AS <replaceable>select_clause</replaceable>
</synopsis> </synopsis>
@ -37,6 +37,20 @@ CREATE TABLE <replaceable>table</replaceable> [ (<replaceable>column</replaceabl
<para> <para>
<variablelist> <variablelist>
<varlistentry>
<term>TEMPORARY or TEMP</term>
<listitem>
<para>
If specified, the table is created only for this session, and is
automatically dropped on session exit.
Existing permanent tables with the same name are not visible
(in this session) while the temporary table exists.
Any indexes created on a temporary table are automatically
temporary as well.
</para>
</listitem>
</varlistentry>
<varlistentry> <varlistentry>
<term><replaceable>table</replaceable></term> <term><replaceable>table</replaceable></term>
<listitem> <listitem>
@ -51,7 +65,9 @@ CREATE TABLE <replaceable>table</replaceable> [ (<replaceable>column</replaceabl
<listitem> <listitem>
<para> <para>
The name of a column. Multiple column names can be specified using The name of a column. Multiple column names can be specified using
a comma-delimited list of column names. a comma-delimited list of column names. If column names are not
provided, they are taken from the output column names of the
SELECT query.
</para> </para>
</listitem> </listitem>
</varlistentry> </varlistentry>
@ -94,7 +110,7 @@ CREATE TABLE <replaceable>table</replaceable> [ (<replaceable>column</replaceabl
<para> <para>
<command>CREATE TABLE AS</command> enables a table to be created <command>CREATE TABLE AS</command> enables a table to be created
from the contents of an existing table. from the contents of an existing table.
It is functionality equivalent to It is functionally equivalent to
<xref linkend="sql-selectinto" endterm="sql-selectinto-title">, <xref linkend="sql-selectinto" endterm="sql-selectinto-title">,
but with perhaps a more direct syntax. but with perhaps a more direct syntax.
</para> </para>