<query id="updateLayout" action="update">
    <tables>
        <table name="layouts" />
    </tables>
    <columns>
        <column name="title" var="title" />
        <column name="extra_vars" var="extra_vars" />
        <column name="layout" var="layout" />
        <column name="layout_path" var="layout_path" />
    </columns>
    <conditions>
        <condition operation="equal" column="layout_srl" var="layout_srl" filter="number" notnull="notnull" />
    </conditions>
</query>
