Date range filter

[antoniosemeraroF]

Is it possible to set a specific date range filter?
For example, the SQL query is:
`select
count(mg_sales_flat_shipment.order_id) as 'NumeroOrdiniSpediti',
sum(mg_sales_flat_order.base_grand_total) as 'TotaleSpedito',
concat(DAY(mg_sales_flat_shipment.created_at), '-',MONTH(mg_sales_flat_shipment.created_at)) as 'Data'

FROM mg_sales_flat_shipment
left join mg_sales_flat_order on mg_sales_flat_order.entity_id = mg_sales_flat_shipment.order_id

group by day(mg_sales_flat_shipment.created_at)`

I want filter the result in a date range.
In the grid configuration, i put this:
{
"filterable": {"Data": "adminhtml/widget_grid_column_filter_date"}
}
But the filter doesn't work.

Thanks

[dtamajon]

widget_grid_column_filter_date does not "understand" dates in format d-m. In that case, you should write your own grid column filter.