Package org.elasticsearch.xpack.esql.datasources.spi

Interface SourceStatistics.ColumnStatistics

Enclosing interface:
SourceStatistics
public static interface SourceStatistics.ColumnStatistics
Statistics for an individual column.

  • Method Summary

    Modifier and Type
    Method
    Description
    OptionalLong
    distinctCount()
    Returns the number of distinct values in this column, if known.
    Optional<Object>
    maxValue()
    Returns the maximum value as a comparable object, if known.
    Optional<Object>
    minValue()
    Returns the minimum value as a comparable object, if known.
    OptionalLong
    nullCount()
    Returns the number of null values in this column, if known.

  • Method Details

    • nullCount

      OptionalLong nullCount()
      Returns the number of null values in this column, if known.

    • distinctCount

      OptionalLong distinctCount()
      Returns the number of distinct values in this column, if known.

    • minValue

      Optional<Object> minValue()
      Returns the minimum value as a comparable object, if known. The type depends on the column data type.

    • maxValue

      Optional<Object> maxValue()
      Returns the maximum value as a comparable object, if known. The type depends on the column data type.