class SynopsisCardinalityEstimation : CardinalityEstimation (source)
Cardinality estimation using a synopsis.
The Synopsis is a statistics store which holds information regarding concatenations.
SynopsisCardinalityEstimation(kPathIndex: KPathIndex)
Cardinality estimation using a synopsis. |
var synopsis: Synopsis |
fun getCardinality(physicalPlan: PhysicalPlan): Long
Return the cardinality of a given physical plan. |