two issued we have faced that could need a fix on priority:
1) we have implemented sum, min, max using columnSummary option. That works fine when the data is loaded for the first time on the handsontable grid. Once we reduce the dataSet on the grid by applying filters, the summary calculations do not show up. they disappear.
2) minSpareRows works fine. it adds extra rows. but when used with columnSummary to be shown on last row inserted by minSpareRows, the sum is shown as doubled that the actual value. For example, if the sum of column 'x' is 20 and we intend to show it on last row, then when used minSpareRows to insert last row then sum of column is shown as 40.
Thanks in advance