The MongoDB Aggregation node executes an aggregation pipeline on a MongoDB database and returns the result as JSON cells in a table. Example aggregation pipeline:

[
   { $match: { status: "A" } },
   { $group: { _id: "$cust_id", total: { $sum: "$amount" } } }
]

For more details see the MongoDB documentation:

• Aggregation Pipeline
• Aggregation Pipeline Stages
• Aggregation Pipeline Operators

Options

Settings

Database

The database name.

Collection

The collection name.

Aggregation Pipeline

The aggregation pipeline in a form of a JSON array. If not specified the node will return all documents.

Views

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Workflows

• 19_MongoDB_AggregationKNIME Hub
• 20_MongoDB_Bulk_SizeKNIME Hub

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Developers