Bug 202121 setDateFormat does not working
If you want to set date format of the table column style you have to use setDateTimeFormatCategory and setDateTimeFormat instead of setDateFormatCategory and setDateFormat. If you will try to use setDateFormatCategory in the first case in xml-source you will see that your style contains dateFormat property. This property is not working at all, in the second case in xml-source you will see that your style contains dateTimeFormat property. I think it will be better if the result of setDateTimeFormatCategory and setDateFormatCategory will be the same.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/css/dom/AbstractStyle.java
public void setStress( String stress ) throws DOMException
	{
		throw createUnsupportedPropertyException( "text-decoration" );
	}
	public String getTableLayout( )
	{
		throw createUnsupportedPropertyException( "text-decoration" );
	}
	public void setTableLayout( String tableLayout ) throws DOMException
	{
		throw createUnsupportedPropertyException( "text-decoration" );
	}
	public String getTextDecoration( )
	{
		throw createUnsupportedPropertyException( "text-decoration" );
	}
	public void setTextDecoration( String textDecoration ) throws DOMException
	{
		throw createUnsupportedPropertyException( "text-decoration" );
	}
	public String getTextShadow( )
	{
		throw createUnsupportedPropertyException( "text-shadow" );
	}
	public void setTextShadow( String textShadow ) throws DOMException
	{
		throw createUnsupportedPropertyException( "text-shadow" );
	}
	public String getTop( )
	{