public class DefaultDataSetStatistic extends Object implements org.apache.calcite.schema.Statistic
Constructor and Description |
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DefaultDataSetStatistic() |
Modifier and Type | Method and Description |
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List<org.apache.calcite.rel.RelCollation> |
getCollations() |
org.apache.calcite.rel.RelDistribution |
getDistribution() |
Double |
getRowCount() |
boolean |
isKey(org.apache.calcite.util.ImmutableBitSet columns) |
public Double getRowCount()
getRowCount
in interface org.apache.calcite.schema.Statistic
public List<org.apache.calcite.rel.RelCollation> getCollations()
getCollations
in interface org.apache.calcite.schema.Statistic
public boolean isKey(org.apache.calcite.util.ImmutableBitSet columns)
isKey
in interface org.apache.calcite.schema.Statistic
public org.apache.calcite.rel.RelDistribution getDistribution()
getDistribution
in interface org.apache.calcite.schema.Statistic
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