Function MakeBasicDataset

cpp/src/arrow/dataset/scanner_test.cc:2365–2394

}

DatasetAndBatches MakeBasicDataset() {
  const auto dataset_schema = ::arrow::schema({
      field("a", int32()),
      field("b", boolean()),
      field("c", int32()),
  });

  const auto physical_schema = SchemaFromColumnNames(dataset_schema, {"a", "b"});

  return DatasetAndBatchesFromJSON(dataset_schema, physical_schema,
                                   {
                                       {
                                           R"([{"a": 1,    "b": null},
                                               {"a": 2,    "b": true}])",
                                           R"([{"a": null, "b": true},
                                               {"a": 3,    "b": false}])",
                                       },
                                       {
                                           R"([{"a": null, "b": true},
                                               {"a": 4,    "b": false}])",
                                           R"([{"a": 5,    "b": null},
                                               {"a": 6,    "b": false},
                                               {"a": 7,    "b": false}])",
                                       },
                                   },
                                   {
                                       equal(field_ref("c"), literal(23)),
                                       equal(field_ref("c"), literal(47)),
                                   });
}

DatasetAndBatches MakeNestedDataset() {
  const auto dataset_schema = ::arrow::schema({