WithColumnsStage

Add or replace columns; unlisted columns pass through.

opOp (string)필수

상수 값: with_columns

exprs object[]필수

Array [

nameName (string)필수

Output column name

exprExpr (string)필수

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

]

WithColumnsStage

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