Interface ColumnStatistics

Represents statistics for a given table column.

Statistics are exposed via statisticsMap, keyed by display name (for example, "COUNT" or "AVG"). For each statistic name, getType returns the expected type name for formatting purposes, or null to indicate that the column's formatting should be used.

If present, uniqueValues returns a map of unique values (as strings) to their occurrence counts.

Hierarchy

ColumnStatistics

Index

Accessors

statisticsMap uniqueValues

Methods

Accessors

statisticsMap

get statisticsMap(): Map<string, object>
Gets a map of each statistic's display name to its value.

Returns Map<string, object>
Map of String and Object

uniqueValues

get uniqueValues(): Map<string, number>
Gets a map of each unique value's name to the count of how many times it occurred in the column. This map will be empty for tables containing more than 19 unique values.

Returns Map<string, number>
Map of String double

Methods

getType

getType(name): string
Gets the type of formatting that should be used for given statistic. A null return value means that the column formatting should be used.
Parameters
- name: string
  
  the display name of the statistic
Returns string
String