1 of 1 people found this helpful
When you remove the YEAR dimension from the column shelf, you're going to aggregate the data to quarter level. Because Year is not visible on the column or row it will all appear in the respective quarters, no matter which year it was for. The filter isn't removed, the data is just being merged with other years.
For example, if you have 100 Quantity in 2011 Q1 and 200 Quantity in 2011 Q2; When you remove year from the column shelf Q2 will show as having 300 Quantity.