notes/db/nosql/mongo/features/agg-joins.txt
Ihar Hancharenka 5224f2a9d9 m
2023-08-12 22:49:22 +03:00

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https://www.mongodb.com/docs/manual/core/aggregation-pipeline/
https://www.mongodb.com/docs/manual/core/aggregation-pipeline-optimization/
https://www.mongodb.com/docs/manual/reference/aggregation/
https://www.mongodb.com/docs/manual/meta/aggregation-quick-reference/
https://www.mongodb.com/docs/manual/reference/operator/aggregation/interface/
commands: aggregate, count, distinct, mapReduce
https://www.mongodb.com/docs/manual/reference/operator/aggregation-pipeline/
stages
https://www.mongodb.com/docs/manual/core/map-reduce/
! deprecated from 5.0
https://www.mongodb.com/docs/manual/reference/operator/aggregation/
https://www.mongodb.com/docs/manual/reference/aggregation-variables/
$$<var-name>
https://www.mongodb.com/docs/manual/reference/sql-aggregation-comparison/
https://www.mongodb.com/docs/manual/tutorial/update-documents-with-aggregation-pipeline/
misc
https://www.mongodb.com/docs/manual/reference/operator/aggregation/accumulator/
from-java-driver
https://www.mongodb.com/docs/drivers/java/sync/current/fundamentals/aggregation/
https://www.mongodb.com/docs/drivers/java/sync/current/fundamentals/builders/aggregates/
2015
https://www.mongodb.com/blog/post/joins-and-other-aggregation-enhancements-coming-in-mongodb-3-2-part-2-of-3-worked-examples
https://www.mongodb.com/blog/post/joins-and-other-aggregation-enhancements-coming-in-mongodb-3-2-part-1-of-3-introduction
$lookup (left-outer equi-join)
$match, $project, $lookup, $group, ..., geoNear, unwind, sample, sort, skip(limit number of docs), redact, out
books
https://www.practical-mongodb-aggregations.com/front-cover.html
mongosh
https://www.mongodb.com/docs/manual/reference/method/db.collection.aggregate