I have a View of Booking Items. Every Booking Item has a reference to a Booking. I want to show all Bookings in the calendar, so I fetch Booking Items and then aggregate the results and do a COUNT on the nid so I get the [Booking title] + [Number of child booking items].
Anyway, that works perfectly if I select a normal display plugin like HTML list. The result is a per-date title + count. When I select FullCalendar as display plugin, the aggregation seems to be ignored and ALL booking items show (every one with a count of 1). Somehow the query changes from
GROUP BY field_data_field_date_node_entity_type, field_data_field_date_field_date_value, node_field_data_field_booking_title
GROUP BY nid_2, field_data_field_date_node_entity_type
I've no idea why. All that's different is the display plugin. That shouldn't change the query...
I see the FullCalendar also adds a DISTINCT to the SELECT statement =( That's not the issue in this case, but it's still weird.
Reproducing is very easy with 2 node types:
* Booking (title)
* Booking item (title, booking (node ref), date)