Array functions

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This section describes the following array functions
​ARRAY_DISTINCT: Get all the distinct elements in the array
​ARRAY_JOIN: This function concatenates the elements of the given array to a string using the separator.
​ARRAY_MAX: Return the maximum value in an array
​ARRAY_MIN: Return the minimum value in an array
​ARRAY_SUM: This function calculates the sum of all non-null elements of the input. If there are no non-null elements, returns 0. The behavior is similar to aggregate function SUM, but operates on an array.
​COUNT_VALUES: Returns the amount of non-null items in a given array
​COUNT_VALUES_IF: Returns the amount of true values in a given array. This can be used with conditional operators to count the number of array elements that fulfil a condition. For example, COUNT_VALUES_IF(my_values[] > 3) will return the number of elements that are greater than 3.
​ELEMENT_AT: This function returns an element of an array at a given index. If index >= 0, this function provides the same functionality as the SQL-standard subscript operator ([]). If index < 0, ELEMENT_AT accesses elements from the last to the first.
​FIRST_ELEMENT: Gets the first element in the array
​LAST_ELEMENT: Gets the last element in the array
WEIGHTED_AVERAGE
ARRAY_DISTINCT
Last modified 10mo ago