Issue in fn!union() to return unique values. Is there any other function available?

Hi Team,

Got confused while doing some calculations in Appain Expression rule. Added input and output below. i have tried fn!union() function but it was failing sine input was only one array.

Code: fn!union({ 1, 2, 2, 1, 3, 1, null, null }, {})

Sample i/p -> { 1, 2, 2, 1, 3, 1, null, null}

Expected o/p -> { 1, 2, 3} 

Current Appian Design:

Thanks and Regards,

Vigneshkumar Radhakrishnan

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  • The UNIQUE function in Excel returns a list of unique values from a range or array. It works with any data type: text, numbers, dates, times, etc.

    The function is categorized under Dynamic Arrays functions. The result is a dynamic array that automatically spills into the neighboring cells vertically or horizontally.

    The syntax of the Excel UNIQUE function is as follows:

    UNIQUE(array, [by_col], [exactly_once])

    Where:

    Array (required) - the range or array from which to return unique values.

    By_col (optional) - a logical value indicating how to compare data:

    TRUE - compares data across columns.
    FALSE or omitted (default) - compares data across rows.

    Exactly_once (optional) - a logical value that defines what values are considered unique:

    TRUE - returns values that occur only once, which is the database notion of unique.
    FALSE or omitted (default) - returns all distinct (different) values in the range or array.

  • 0
    Certified Lead Developer
    in reply to atonal3106

    How does your post help the TO in Appian?

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