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org.apache.spark.sql.pipelines.graph

CoreDataflowNodeProcessor

class CoreDataflowNodeProcessor extends AnyRef

Processor that is responsible for analyzing each flow and sort the nodes in topological order

Source
CoreDataflowNodeProcessor.scala
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Instance Constructors

  1. new CoreDataflowNodeProcessor(rawGraph: DataflowGraph)

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  14. def processNode(node: GraphElement, upstreamNodes: Seq[GraphElement]): Seq[GraphElement]

    Processes the node of the graph, re-arranging them if they are not topologically sorted.

    Processes the node of the graph, re-arranging them if they are not topologically sorted. Takes care of resolving the flows and virtualizing tables (i.e. removing tables to ensure resolution is internally consistent) if needed for the nodes.

    node

    The node to process

    upstreamNodes

    Upstream nodes for the node

    returns

    The resolved nodes generated by processing this element.

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    Deprecated

    (Since version 9)

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