Package org.apache.spark.sql.connector.expressions.aggregate

package org.apache.spark.sql.connector.expressions.aggregate
  • Class
    Description
    AggregateFunc
    Base class of the Aggregate Functions.
    Aggregation
    Aggregation in SQL statement.
    Avg
    An aggregate function that returns the mean of all the values in a group.
    Count
    An aggregate function that returns the number of the specific row in a group.
    CountStar
    An aggregate function that returns the number of rows in a group.
    GeneralAggregateFunc
    The general implementation of AggregateFunc, which contains the upper-cased function name, the `isDistinct` flag and all the inputs.
    Max
    An aggregate function that returns the maximum value in a group.
    Min
    An aggregate function that returns the minimum value in a group.
    Sum
    An aggregate function that returns the summation of all the values in a group.
    UserDefinedAggregateFunc
    The general representation of user defined aggregate function, which implements AggregateFunc, contains the upper-cased function name, the canonical function name, the `isDistinct` flag and all the inputs.