I have a field in this format, but I need the month name.
Today in Portuguese, if I use the native Looker table view, it works normally, it just doesn’t work in this Table (Report) view that was downloaded from the Looker Store.
So, if the year is already sorted in any order then for the month name field maybe you just simply need to use the month from date dimension-group and then in the format pane, for the month you may need to add %b: Abbreviated month name (e.g., Jan, Feb).
I was looking at the formatting panel and for this view (Report) it doesn’t allow formatting the comparison field, because it’s a pivot table, so it seems to cease being considered a dimension field and is displayed in the panel.
then maybe you’ll need to maintain another source ,for a date time dimension (like year month) to a textual dimension (like Janerio, Fevererio …) mapping. Then sort the table using the time dimension while displaying your textual dimension in the headers