数据表DateTimePicker没有过滤正确的记录？

Question

我正在使用Data Table DateTimePicker，问题是4月1日的数据库中有可用的记录。但是当我用来过滤4月1日至30日之间的数据时，它显示没有记录，但是当我用它来过滤3月31日到1之间的记录时，它可能会显示与4月1日相关的记录。我的代码是：

  <script src="media/js/jquery-1.4.4.min.js" type="text/javascript"></script>
        <script src="media/js/jquery.dataTables.min.js" type="text/javascript"></script>

        <script src="media/js/jquery-ui.js" type="text/javascript"></script>
        <script src="media/js/jquery.dataTables.columnFilter.js" type="text/javascript"></script>
        <script type="text/javascript">
$(document).ready(function(){
                $.datepicker.regional[""].dateFormat = 'dd/mm/yy';
                $.datepicker.setDefaults($.datepicker.regional['']);
     $('#example').dataTable({
"fnFooterCallback": function ( nRow, aaData, iStart, iEnd, aiDisplay ) {
                        /*
                         * Calculate the total market share for all browsers in this table (ie inc. outside
                         * the pagination)
                         */
                        var iTotalMarket = 0;
                        for ( var i=0 ; i<aaData.length ; i++ )
                        {
                            iTotalMarket += aaData[i][11]*1;
                        }

                        /* Calculate the market share for browsers on this page */
                        var iPageMarket = 0;
                        for ( var i=iStart ; i<iEnd ; i++ )
                        {
                            iPageMarket += aaData[ aiDisplay[i] ][11]*1;
                        }

                        /* Modify the footer row to match what we want */
                        var nCells = nRow.getElementsByTagName('th');
                        nCells[1].innerHTML = parseInt(iPageMarket * 100)/100 +
                            ' INR of ('+ parseInt(iTotalMarket * 100)/100 +' INR)';
                    },
"aoColumns": [ 
            { "sWidth": "200px" },
            null,
            null
        ]
                } )
            .columnFilter({ sPlaceHolder: "head:before",
            aoColumns: [ { type: "hidden" },
                        { type: "hidden" },
                        { type: "hidden" },
                        { type: "hidden" },
                        { type: "hidden" },
                        { type: "hidden" },
                        { type: "hidden" },
                        { type: "hidden" },
                        { type: "hidden" },
                        { type: "date-range", sRangeFormat: "From Date{from} To Date {to}" },
                        { type: "hidden" },
                        { type: "hidden" },
                        { type: "hidden" }
                ]


        });
});

        </script>