DataTable/Column/filterFunction: event is literally 0

Hello, in our team we have a table where the data for one field are stored outside of row objects. The table is quite big, and this is the only column which is editable so we chose this approach.

<DataTable
  cellMemo={false}
  /* ... */
>
  <Column body={row => getData(row)}/>
  /* ... */
</DataTable>

We'd like to add filtering for the column using filterFunction. According to TypeScript types, the fourth parameter should be ColumnFilterEvent.

// in ColumnProps
filterFunction?(value: any, filter: any, filterLocale: string, params: ColumnFilterEvent): void;

In the ColumnFilterEvent, there should be rowData which we need to access so that we are able to derive the actual value for the column, similarly as we do in the body function.

However, the fourth parameter is literally 0 (zero as a number).

Versions:

• React 19.2.3
• PrimeReact 10.9.7

Start at the DataTable/Column filterFunction entry point and inspect the ColumnProps filterFunction type alongside ColumnFilterEvent. Reproduce the example with an external column value, then trace the fourth argument. Done means the callback receives the documented event data, including rowData, rather than the number 0.