-
Type:
Improvement
-
Resolution: Duplicate
-
Priority:
Minor - P4
-
None
-
Affects Version/s: None
-
Component/s: Aggregation Framework
-
Labels:None
-
Query
When performing a pipeline doing a sample then project I noticed it was much slower than doing a project then sample. Could this be optimized? In a similar fashion as to: https://docs.mongodb.com/manual/core/aggregation-pipeline-optimization
For example with the MovieLens dataset ~1million documents:
Pipeline: $sample + $project _id: 76120 ms
Pipeline: $project _id + $sample: 1124 ms
- duplicates
-
SERVER-21887 $sample takes disproportionately long time on newly created collection
-
- Closed
-
-
-
- Closed
-
- is related to
-
-
- Closed
-