Bug 416703 Mongodb : Display correctly the Number data type
data/org.eclipse.birt.data.oda.mongodb/src/org/eclipse/birt/data/oda/mongodb/impl/MDbResultSet.java
if( columnValue instanceof Date )
            return (Date)columnValue;
        if( columnValue instanceof List )
            return convertToSqlDate( 
                        (java.util.Date)getFirstFieldValue( (List<?>)columnValue, java.util.Date.class, columnName ));
        
        if( columnValue != null && getLogger().isLoggable( Level.FINE ) )
            getLogger().fine( 
                Messages.bind( "Unable to get Date value from the {0} field, whose fetched value is of {1} data type.",  
                        columnName, columnValue.getClass().getSimpleName() ));
        return null;
    }
	private static Date convertToSqlDate( java.util.Date utilDateValue )
	{
	    if( utilDateValue == null )
	        return null;
        return new Date( utilDateValue.getTime() );
	}
	/*
	 * @see org.eclipse.datatools.connectivity.oda.IResultSet#getTime(int)
	 */
	public Time getTime( int index ) throws OdaException
	{
        return getTime( findFieldName(index) );
	}
	/*
	 * @see org.eclipse.datatools.connectivity.oda.IResultSet#getTime(java.lang.String)
	 */
	public Time getTime( String columnName ) throws OdaException
	{