ContinuousExecutionRelation Leaf Logical Operator

ContinuousExecutionRelation is a MultiInstanceRelation leaf logical operator.

Tip
 Read up on Leaf Logical Operators in The Internals of Spark SQL book.

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

ContinuousExecutionRelation takes the following to be created:

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