blocks/event_calendar/db.xml
<?xml version="1.0"?>
<schema version="0.3">
<table name="btEventCalendar">
<field name="bID" type="I">
<key/>
<unsigned/>
</field>
<field name="calendarID" type="I">
<unsigned/>
</field>
<field name="lang" type="C" size="255">
</field>
<field name="typeID" type="C" size="255">
<default value="0"/>
</field>
<field name="contentHeight" type="C" size="255">
<default value="0"/>
</field>
</table>
</schema>