COUNT_DISTINCT - Amazon Glue DataBrew
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COUNT_DISTINCT

Returns the total number of distinct values from the selected source columns in a new column. Empty and null values are ignored.

Parameters

  • sourceColumns – A JSON-encoded string representing a list of existing columns.

  • targetColumn – A name for the newly created column.

Example

{
    "RecipeAction": {
        "Operation": "COUNT_DISTINCT",
        "Parameters": {
            "sourceColumns": "[\"long_name\",\"weight_kg\"]",
            "targetColumn": "COUNT_DISTINCT Column 1"
        }
    }
}