hyparquet/test/files/unsigned.metadata.json

{
  "version": 1,
  "schema": [
    {
      "repetition_type": "REQUIRED",
      "name": "schema",
      "num_children": 4
    },
    {
      "type": "INT32",
      "repetition_type": "OPTIONAL",
      "name": "utiny",
      "converted_type": "UINT_8",
      "logical_type": {
        "type": "INTEGER",
        "bitWidth": 8,
        "isSigned": false
      }
    },
    {
      "type": "INT32",
      "repetition_type": "OPTIONAL",
      "name": "usmall",
      "converted_type": "UINT_16",
      "logical_type": {
        "type": "INTEGER",
        "bitWidth": 16,
        "isSigned": false
      }
    },
    {
      "type": "INT64",
      "repetition_type": "OPTIONAL",
      "name": "uint"
    },
    {
      "type": "INT64",
      "repetition_type": "OPTIONAL",
      "name": "ubig",
      "converted_type": "UINT_64",
      "logical_type": {
        "type": "INTEGER",
        "bitWidth": 64,
        "isSigned": false
      }
    }
  ],
  "num_rows": 2,
  "row_groups": [
    {
      "columns": [
        {
          "file_offset": 72,
          "meta_data": {
            "type": "INT32",
            "encodings": [
              "PLAIN_DICTIONARY",
              "PLAIN",
              "RLE"
            ],
            "path_in_schema": [
              "utiny"
            ],
            "codec": "SNAPPY",
            "num_values": 2,
            "total_uncompressed_size": 64,
            "total_compressed_size": 68,
            "data_page_offset": 28,
            "dictionary_page_offset": 4,
            "statistics": {
              "null_count": 0,
              "max_value": 255,
              "min_value": 0
            },
            "encoding_stats": [
              {
                "page_type": "DICTIONARY_PAGE",
                "encoding": "PLAIN_DICTIONARY",
                "count": 1
              },
              {
                "page_type": "DATA_PAGE",
                "encoding": "PLAIN_DICTIONARY",
                "count": 1
              }
            ]
          }
        },
        {
          "file_offset": 207,
          "meta_data": {
            "type": "INT32",
            "encodings": [
              "PLAIN_DICTIONARY",
              "PLAIN",
              "RLE"
            ],
            "path_in_schema": [
              "usmall"
            ],
            "codec": "SNAPPY",
            "num_values": 2,
            "total_uncompressed_size": 64,
            "total_compressed_size": 68,
            "data_page_offset": 163,
            "dictionary_page_offset": 139,
            "statistics": {
              "null_count": 0,
              "max_value": 65535,
              "min_value": 0
            },
            "encoding_stats": [
              {
                "page_type": "DICTIONARY_PAGE",
                "encoding": "PLAIN_DICTIONARY",
                "count": 1
              },
              {
                "page_type": "DATA_PAGE",
                "encoding": "PLAIN_DICTIONARY",
                "count": 1
              }
            ]
          }
        },
        {
          "file_offset": 381,
          "meta_data": {
            "type": "INT64",
            "encodings": [
              "PLAIN_DICTIONARY",
              "PLAIN",
              "RLE"
            ],
            "path_in_schema": [
              "uint"
            ],
            "codec": "SNAPPY",
            "num_values": 2,
            "total_uncompressed_size": 100,
            "total_compressed_size": 104,
            "data_page_offset": 309,
            "dictionary_page_offset": 277,
            "statistics": {
              "max": 4294967295,
              "min": 0,
              "null_count": 0,
              "max_value": 4294967295,
              "min_value": 0
            },
            "encoding_stats": [
              {
                "page_type": "DICTIONARY_PAGE",
                "encoding": "PLAIN_DICTIONARY",
                "count": 1
              },
              {
                "page_type": "DATA_PAGE",
                "encoding": "PLAIN_DICTIONARY",
                "count": 1
              }
            ]
          }
        },
        {
          "file_offset": 561,
          "meta_data": {
            "type": "INT64",
            "encodings": [
              "PLAIN_DICTIONARY",
              "PLAIN",
              "RLE"
            ],
            "path_in_schema": [
              "ubig"
            ],
            "codec": "SNAPPY",
            "num_values": 2,
            "total_uncompressed_size": 80,
            "total_compressed_size": 84,
            "data_page_offset": 509,
            "dictionary_page_offset": 477,
            "statistics": {
              "null_count": 0,
              "max_value": -1,
              "min_value": 0
            },
            "encoding_stats": [
              {
                "page_type": "DICTIONARY_PAGE",
                "encoding": "PLAIN_DICTIONARY",
                "count": 1
              },
              {
                "page_type": "DATA_PAGE",
                "encoding": "PLAIN_DICTIONARY",
                "count": 1
              }
            ]
          }
        }
      ],
      "total_byte_size": 308,
      "num_rows": 2,
      "file_offset": 4,
      "total_compressed_size": 324,
      "ordinal": 0
    }
  ],
  "key_value_metadata": [
    {
      "key": "ARROW:schema",
      "value": "/////wgBAAAQAAAAAAAKAAwABgAFAAgACgAAAAABBAAMAAAACAAIAAAABAAIAAAABAAAAAQAAACkAAAAZAAAADQAAAAEAAAAfP///wAAAQIQAAAAGAAAAAQAAAAAAAAABAAAAHViaWcAAAAAbv///0AAAACo////AAABAhAAAAAYAAAABAAAAAAAAAAEAAAAdWludAAAAACa////IAAAANT///8AAAECEAAAABgAAAAEAAAAAAAAAAYAAAB1c21hbGwAAMb///8QAAAAEAAUAAgABgAHAAwAAAAQABAAAAAAAAECEAAAABwAAAAEAAAAAAAAAAUAAAB1dGlueQAGAAgABAAGAAAACAAAAAAAAAA="
    }
  ],
  "created_by": "parquet-cpp-arrow version 6.0.1",
  "metadata_length": 851
}