MongoDB Aggregation

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

Input ports

1. Type: org.knime.mongodb.connection.port.MongoDBConnectionPortObject
   MongoDB Connection
   The MongoDB Connection

Output ports

1. Type: Table
   JSON Result
   The result JSON returned by MongoDB

MongoDB Connection (Dynamic Outport)

The input MongoDB Connection.

1. Type: org.knime.mongodb.connection.port.MongoDBConnectionPortObject