TRANSPOSE - AWS Glue DataBrew

TRANSPOSE

Converts all selected rows to columns and columns to rows.

Table transformation from rows to columns, showing data reorganization for improved analysis.
Parameters

  • pivotColumns — A JSON-encoded string representing a list of columns whose rows will be converted to column names.

  • valueColumns — A JSON-encoded string representing a list of one or more columns to be converted to rows.

  • aggregateFunction — The name of an aggregation function. If you don't want aggregation, use the keyword COLLECT_LIST.

  • newColumn — The column to hold transposed columns as values.

Example

{
    "Action": {
        "Operation": "TRANSPOSE",
        "Parameters": {
            "pivotColumns": "[\"Teacher\"]",
            "valueColumns": "[\"Tom\",\"John\",\"Harry\"]",
            "aggregateFunction": "COLLECT_LIST",
            "newColumn": "Student"
        }
    }

}