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Showing posts with the label Aggregation Framework
Get String Array From Pymongo Query

Get String Array From Pymongo Query

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I need to get an array with the values from the field 'colname'. I can't return a Curso… Read more Get String Array From Pymongo Query
Mapreduce In Pymongo

Mapreduce In Pymongo

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My Mongo collection : Impressions has docs in the following format:- { _uid: 10, … Read more Mapreduce In Pymongo
Failed Aggregation On Tornado/motor: Yielded Unknown Object Motoraggregationcursor

Failed Aggregation On Tornado/motor: Yielded Unknown Object Motoraggregationcursor

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I'm having issue to execute MongoDB aggregation operation on Tornado. This is the code, pipelin… Read more Failed Aggregation On Tornado/motor: Yielded Unknown Object Motoraggregationcursor