Phase 05Data that has to last257 of 434
Aggregation, and doing the work near the data
Group, join and reshape in the database instead of pulling ten thousand documents into Node and looping.
Build45 minAI implements
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This one runs on your machine rather than in the browser workbench. Work to the outcomes below, then come back and mark it complete.
You should now be able to
- Write a multi-stage aggregation pipeline
- Filter early so later stages see less data
- Compare the pipeline against the equivalent application-side loop
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