Hello,
So I’m kind of new to Mongo aggregations and after a lot of researching and googling I can’t figure out how to do a particular query.
Say I have many documents with the following format:
{
_id: 1,
client: "Some Client",
type: "Some Type",
firstUsed: 2021-01-05T13:23:37.000+0000
lastUsed: 2021-05-05T18:11:23.000+0000
}
What I’m trying to do is group all the documents by type (for a particular client), and then get the first firstUsed
datetime and the last lastUsed
datetime.
I’ve been playing with aggregations but after doing a $match
on the client, $group
on the type, I can only figure out then how to get only one of the dates I need.
Sorting by firstUsed
and getting the first document is fine, but then getting the last document doesnt mean I’m getting the correct lastUsed
.
How do I re-sort and get the last lastUsed
datetime while keeping the already found firstUsed
?
Hope that makes sense,
Thanks