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From omalley <...@git.apache.org>
Subject [GitHub] orc pull request: ORC-8. Reimplement file-metadata to use the read...
Date Mon, 18 Jan 2016 23:07:00 GMT
Github user omalley commented on the pull request:

    https://github.com/apache/orc/pull/15#issuecomment-172677305
  
    Ok, I just extended the Reader API to get the additional details. I also added a "--verbose"
flag to file-metadata that prints the streams and encoding information for each stripe.
    
    ```
    owen@laptop> tools/src/file-metadata -v ../examples/decimal.orc
    { "name": "../examples/decimal.orc",
      "type": "struct<_col0:decimal(10,5)>",
      "rows": 6000,
      "stripe count": 1,
      "format": "0.12", "writer version": "original",
      "compression": "none",
      "file length": 16337,
      "content": 16186, "stripe stats": 44, "footer": 89, "postscript": 17,
      "row index stride": 10000,
      "user metadata": {
      },
      "stripes": [
        { "stripe": 0, "rows": 6000,
          "offset": 3, "length": 16183,
          "index": 54, "data": 16079, "footer": 50,
          "encodings": [
             { "column": 0, "encoding": "direct" },
             { "column": 1, "encoding": "direct rle2" }
          ],
          "streams": [
            { "id": 0, "column": 0, "kind": "index",
              "offset": 3, "length": 7 },
            { "id": 1, "column": 1, "kind": "index",
              "offset": 10, "length": 47 },
            { "id": 2, "column": 1, "kind": "present",
              "offset": 57, "length": 12 },
            { "id": 3, "column": 1, "kind": "data",
              "offset": 69, "length": 13673 },
            { "id": 4, "column": 1, "kind": "secondary",
              "offset": 13742, "length": 2394 }
          ]
        }
      ]
    }
    ```



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