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AnalysisBarrier Leaf Logical Operator

AnalysisBarrier is a leaf logical operator that is a wrapper of an <> to hide it from the Spark Analyzer. The purpose of AnalysisBarrier is to prevent the child logical plan from being analyzed again (and increasing the time spent on query analysis).

AnalysisBarrier is <> when:

[[child]] [[creating-instance]] AnalysisBarrier takes a single child <> when created.

[[innerChildren]] AnalysisBarrier returns the <> when requested for the inner nodes (that should be shown as an inner nested tree of this node).

[[output]] AnalysisBarrier simply requests the <> for the <>.

[[isStreaming]] AnalysisBarrier simply requests the <> for the <> flag.

[[doCanonicalize]] AnalysisBarrier simply requests the <> for the <>.


Last update: 2020-11-16