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