robin-sparkless 4.4.0

PySpark-like DataFrame API in Rust on Polars; no JVM.
Documentation 
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{
  "name": "get_map",
  "pyspark_version": "3.5.0",
  "input": {
    "schema": [
      { "name": "id", "type": "bigint" }
    ],
    "rows": [[1], [2]]
  },
  "operations": [
    { "op": "withColumn", "column": "m", "expr": "create_map(lit('a'), lit(10), lit('b'), lit(20))" },
    { "op": "withColumn", "column": "va", "expr": "get(col('m'), lit('a'))" },
    { "op": "withColumn", "column": "vc", "expr": "get(col('m'), lit('c'))" },
    { "op": "select", "columns": ["id", "va", "vc"] }
  ],
  "expected": {
    "schema": [
      { "name": "id", "type": "bigint" },
      { "name": "va", "type": "int" },
      { "name": "vc", "type": "int" }
    ],
    "rows": [
      [1, 10, null],
      [2, 10, null]
    ]
  }
}