mongodb aggregate explain

相關問題 & 資訊整理

mongodb aggregate explain

Close ×. MongoDB Manual. Version 4.4 (current). Version 4.4 (current); Version 4.2; Version 4.0; Version 3.6; Version 3.4; Version 3.2; Version 3.0; Version 2.6 ... ,Changed in version 3.6: MongoDB 3.6 removes the use of aggregate command without the cursor option unless the command includes the explain option. ,db.command('aggregate', 'things', pipeline=pipeline, explain=True) u'ok': 1.0, u'stages': [...]} As well as simple aggregations the aggregation framework ... ,To see how the optimizer transforms a particular aggregation pipeline, include the explain option in the db.collection.aggregate() method. Optimizations are ... ,Updates with Aggregation Pipeline · Update Methods ... of Current Operations · Optimize Query Performance · Write Operation Performance · Explain Results. ,explain, boolean. Optional. Specifies to return the information on the processing of the pipeline. See Return Information on Aggregation Pipeline Operation for ... ,2020年1月14日 — MongoDB aggregates make it easier to query data from any collection. It involves things like matching, getting data from other collections, ... ,2018年1月15日 — 1. Explain info. Explain() returns the winning plan of a query, ie how the database fetch the document before processing them in the pipeline. ,2013年10月26日 — The aggregation framework is a set of analytics tools within MongoDB that allows us to run various types of reports or analysis on documents in one or more collections. Based on the idea of a pipeline.

相關軟體 MongoDB 資訊

MongoDB
MongoDB 是一個免費且開放源碼的跨平檯面向文檔的數據庫程序。分類為 NoSQL 數據庫程序,MongoDB 使用類似 JSON 的文檔與模式。它為使用 MongoDB 包括數據庫開發人員和 DBA 的任何人提供了豐富的 GUI 工具。主要功能包括:全功能嵌入 MongoDB Shell,用戶友好的 Map-Reduce 操作編輯器,創建 / 刪除數據庫,管理集合及其索引的能力,用戶友好的 G... MongoDB 軟體介紹

mongodb aggregate explain 相關參考資料
$explain — MongoDB Manual

Close ×. MongoDB Manual. Version 4.4 (current). Version 4.4 (current); Version 4.2; Version 4.0; Version 3.6; Version 3.4; Version 3.2; Version 3.0; Version 2.6 ...

https://docs.mongodb.com

aggregate — MongoDB Manual

Changed in version 3.6: MongoDB 3.6 removes the use of aggregate command without the cursor option unless the command includes the explain option.

https://docs.mongodb.com

Aggregation Examples - MongoDB API

db.command('aggregate', 'things', pipeline=pipeline, explain=True) u'ok': 1.0, u'stages': [...]} As well as simple aggregations the aggregation framework ...

https://api.mongodb.com

Aggregation Pipeline Optimization — MongoDB Manual

To see how the optimizer transforms a particular aggregation pipeline, include the explain option in the db.collection.aggregate() method. Optimizations are ...

https://docs.mongodb.com

Aggregation — MongoDB Manual

Updates with Aggregation Pipeline · Update Methods ... of Current Operations · Optimize Query Performance · Write Operation Performance · Explain Results.

https://docs.mongodb.com

db.collection.aggregate() — MongoDB Manual

explain, boolean. Optional. Specifies to return the information on the processing of the pipeline. See Return Information on Aggregation Pipeline Operation for ...

https://docs.mongodb.com

Mongo Aggregates and How to Explain Aggregate Queries ...

2020年1月14日 — MongoDB aggregates make it easier to query data from any collection. It involves things like matching, getting data from other collections, ...

https://dzone.com

MongoDB aggregation explain provides data only about first ...

2018年1月15日 — 1. Explain info. Explain() returns the winning plan of a query, ie how the database fetch the document before processing them in the pipeline.

https://stackoverflow.com

Mongodb Explain for Aggregation framework - Stack Overflow

2013年10月26日 — The aggregation framework is a set of analytics tools within MongoDB that allows us to run various types of reports or analysis on documents in one or more collections. Based on the ide...

https://stackoverflow.com