robin-sparkless 4.4.0

PySpark-like DataFrame API in Rust on Polars; no JVM.
Documentation
{
  "name": "position_start",
  "pyspark_version": "3.5.0",
  "input": {
    "schema": [
      {
        "name": "id",
        "type": "bigint"
      },
      {
        "name": "s",
        "type": "string"
      }
    ],
    "rows": [
      [
        1,
        "abcab"
      ],
      [
        2,
        "ab"
      ],
      [
        3,
        "xab"
      ],
      [
        4,
        "xx"
      ]
    ]
  },
  "operations": [
    {
      "op": "withColumn",
      "column": "pos1",
      "expr": "position('ab', col('s'), 1)"
    },
    {
      "op": "withColumn",
      "column": "pos2",
      "expr": "position('ab', col('s'), 2)"
    },
    {
      "op": "orderBy",
      "columns": [
        "id"
      ],
      "ascending": [
        true
      ]
    }
  ],
  "expected": {
    "schema": [
      {
        "name": "id",
        "type": "bigint"
      },
      {
        "name": "s",
        "type": "string"
      },
      {
        "name": "pos1",
        "type": "int"
      },
      {
        "name": "pos2",
        "type": "int"
      }
    ],
    "rows": [
      [
        1,
        "abcab",
        1,
        4
      ],
      [
        2,
        "ab",
        1,
        0
      ],
      [
        3,
        "xab",
        2,
        2
      ],
      [
        4,
        "xx",
        0,
        0
      ]
    ]
  }
}