class Activecube::Processor::MeasureTables::Entry
Attributes
cardinality[R]
cost[R]
index[R]
table[R]
Public Class Methods
new(table, index)
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# File lib/activecube/processor/measure_tables.rb, line 7 def initialize table, index @table = table @index = index @cardinality = index ? index.cardinality : 0 @cost = 1.0 / (1.0 + cardinality) end