rust-data-processing 0.3.0

Schema-first ingestion (CSV, JSON, Parquet, Excel) into an in-memory DataSet, plus Polars-backed pipelines, SQL, profiling, validation, and map/reduce-style processing.
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[
  { "id": 1, "name": "Ada" },
  { "id": 2, "name": "Grace" },
  { "id": 3, "name": "Linus" }
]