robin-sparkless 4.4.0

PySpark-like DataFrame API in Rust on Polars; no JVM.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56

{
  "test_id": "repeat",
  "pyspark_version": "3.5",
  "generated_at": "2025-10-27T14:13:23.439713",
  "input_data": [
    {
      "id": 1,
      "name": "Alice",
      "text": "Hello World",
      "email": "alice@example.com"
    },
    {
      "id": 2,
      "name": "Bob",
      "text": "Test String",
      "email": "bob@test.com"
    },
    {
      "id": 3,
      "name": "Charlie",
      "text": "Python Data",
      "email": "charlie@company.org"
    }
  ],
  "operation": "DataFrame operation: repeat",
  "expected_output": {
    "schema": {
      "field_count": 1,
      "field_names": [
        "repeat(name, 2)"
      ],
      "field_types": [
        "string"
      ],
      "fields": [
        {
          "name": "repeat(name, 2)",
          "type": "string",
          "nullable": true
        }
      ]
    },
    "data": [
      {
        "repeat(name, 2)": "AliceAlice"
      },
      {
        "repeat(name, 2)": "BobBob"
      },
      {
        "repeat(name, 2)": "CharlieCharlie"
      }
    ],
    "row_count": 3
  }
}