ContinuousExecutionRelation Leaf Logical Operator

2015-07-05 分类：structured-streaming 阅读(1238) 评论(0)

ContinuousExecutionRelation is a MultiInstanceRelation leaf logical operator.

Tip	Find out more on leaf logical operators in LeafNode — Base Logical Operator with No Child Operators and Optional Statistics section 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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