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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.2 $ -->
<chapter xml:id="session-pgsql.tables">
<title>Table definitions</title>
<para>
Session table definition
<programlisting role="sql">
<![CDATA[
CREATE TABLE php_session (
sess_id text,
sess_name text,
sess_data text,
sess_created integer,
sess_modified integer,
sess_expire integer,
sess_addr_created text,
sess_addr_modified text,
sess_counter integer,
sess_error integer,
sess_warning integer,
sess_notice integer,
sess_err_message text,
sess_custom text
);
CREATE INDEX php_session_idx ON php_session USING BTREE (sess_id);
]]>
</programlisting>
</para>
<warning>
<para>
If you use <literal>HASH</literal> for <literal>INDEX</literal>, you'll
have a deadlock problem when the server load is
<emphasis>very</emphasis> high. Even if it's unlikely to have a deadlock
under normal operation, it can occur. <emphasis>Do not use
<literal>HASH</literal> for <literal>INDEX</literal></emphasis>.
</para>
</warning>
<para>
You may change the session table as long as all fields are defined.
</para>
<para>
Application variables table definition
<programlisting role="sql">
<![CDATA[
CREATE TABLE php_app_vars (
app_modified integer,
app_name text,
app_vars text
);
]]>
</programlisting>
</para>
</chapter>
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sgml-shorttag:t
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sgml-always-quote-attributes:t
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sgml-default-dtd-file:"../../../manual.ced"
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End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->
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