Neo4j Graph Output

Description

The Graph Output transform aims to allow input fields to be mapped automatically to a graph model. The model is for now defined locally but the goal is to have this done elsewhere in the near future. The algorithm used takes null values for fields mapped to primary properties of nodes into account and will not merge on these nodes and will not create or update relationships to it.

Limitations

  • Updates across unknown nodes ()--() are not supported

  • Circular relationships to the same nodes: please create a new node with a different name and the same label to make this work. It allows you to uniquely map input fields to these node properties and get the correct results.

Notable options

Option

Description

transform name

the name for this transform in the pipeline

Neo4j connection

the Neo4j connection to write the graph to

Graph model

the Neo4j graph model to use

Batch size (rows)

batch size to use for writing data to Neo4j

Create indexes?

create Neo4j indexes before running this transform

Return graph data?

return graph data returned by Neo4j

Graph output field name

the name of the field to write the graph data to (if Return graph data? is enabled)

Validate against model?

validate the data against the model

Allow out of order updates?

If out of order updates are allowed, this transform generates unwind statements. Otherwise, standard batch updates are used.

Mappings

Map fields in the pipeline to fields in the Neo4j graph