Get total hit count from Lucene

MongoDB Atlas Atlas Search
1

Hi,

Is there any way to get the total hit count from Lucene’s TopDocs.totalHits? It would be wonderful if that information was available somewhere in the query result, maybe through the $meta operator, because using $count in the aggregation pipeline is extremely slow depending on the size of the result set. E.g. our collection has 2 million documents, and $count takes an average of 8 seconds on a result set of ~12k hits. The pipeline has only two steps: $search followed by $count. The search step is very fast.

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@Celio_Cidral We are working on exposing it. It should be available in three to nine months but it is in progress. Lots of moving parts to do it right.

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