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[08:52:10] <blip99> Hi all, fairly new to MongoDB and having a little trouble writing an aggregation pipeline - I'm trying to join ($lookup) but the foreignField includes an array in the path

[08:52:34] <blip99> how would I have it check all items in the array

[08:54:10] <blip99> e.g. foreignField: 'world.companies.yahoo.peopleArray.personArray.index3.age'

[08:55:07] <blip99> So I want the lookup to check all elements in peopleArray - but each element is also an array, where I want to check a specific index=3

[10:06:05] <vfuse> Is it safe to remove WiredTigerLAS.wt? This file is growing and filling all disk space on a replicaset

[12:25:04] <blip99> how can i use the $arrayElemAt operator within the field of an aggregation $lookup?

[12:25:11] <blip99> I'm trying to do a $lookup with matching on a foreignField which includes an array of arrays in its path :

[12:25:21] <blip99> really confused

[12:51:48] <roxlu> hey!

[12:52:43] <roxlu> I'm using the nodejs interface with `update_one()` and doing an upsert. I'm wondering, when a new document is created by the `update_one()` how can I get the `_id` of the new document?

[15:25:54] <blip99> roxlu, i dont think this channel is active. ive tried asking here in the past

[15:26:18] <blip99> maybe try ##programming or a general database channel

[17:20:55] <roxlu> Ok, thanks blip99