rust-data-processing 0.3.6

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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{
  "records": [
    {
      "topic": "metrics",
      "partition": 0,
      "offset": 10,
      "timestamp_ms": 1700000000000,
      "value": "{\"event_id\":100,\"payload\":\"alpha\"}"
    },
    {
      "topic": "metrics",
      "partition": 1,
      "offset": 11,
      "value": "{\"event_id\":101,\"payload\":\"beta\"}"
    }
  ]
}