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ContinuousExecutionRelation Leaf Logical Operator

ContinuousExecutionRelation is a MultiInstanceRelation (Spark SQL) leaf logical operator.

Tip

Learn more about Leaf Logical Operators in The Internals of Spark SQL book.

Creating Instance

ContinuousExecutionRelation takes the following to be created:

  • [[source]] ContinuousReadSupport source
  • [[extraOptions]] Options (Map[String, String])
  • [[output]] Output attributes (Seq[Attribute])
  • [[session]] SparkSession (Spark SQL)

ContinuousExecutionRelation is created (to represent StreamingRelationV2 with ContinuousReadSupport data source) when ContinuousExecution is created (and requested for the logical plan).