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WithColumnsStage

Add or replace columns; unlisted columns pass through.

opOp (string)required
Constant value: with_columns
exprs object[]required
  • Array [
    • nameName (string)required

    Output column name

    exprExpr (string)required

    Polars-SQL expression, e.g. 'qty * unit_price'

  • ]
    • WithColumnsStage
    {
      "op": "with_columns",
      "exprs": [
        {
          "name": "string",
          "expr": "string"
        }
      ]
    }