Apache ORC · Schema

FileMetadata

FileMetadata schema from Apache ORC

Big DataColumnar StorageCompressionFile FormatHadoopApacheOpen Source

Properties

Name	Type	Description
filePath	string
fileVersion	string
writerVersion	string
compression	string
compressionBlockSize	integer
rowCount	integer
rawDataSize	integer
numberOfStripes	integer
stripes	array

View JSON Schema on GitHub

JSON Schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/apache-orc/refs/heads/main/json-schema/apache-orc-file-metadata-schema.json",
  "title": "FileMetadata",
  "description": "FileMetadata schema from Apache ORC",
  "type": "object",
  "properties": {
    "filePath": {
      "type": "string",
      "example": "data/sales.orc"
    },
    "fileVersion": {
      "type": "string",
      "example": "0.12"
    },
    "writerVersion": {
      "type": "string",
      "example": "ORC_135"
    },
    "compression": {
      "type": "string",
      "example": "ZLIB",
      "enum": [
        "NONE",
        "ZLIB",
        "SNAPPY",
        "LZO",
        "LZ4",
        "ZSTD"
      ]
    },
    "compressionBlockSize": {
      "type": "integer",
      "example": 262144
    },
    "rowCount": {
      "type": "integer",
      "example": 1000000
    },
    "rawDataSize": {
      "type": "integer",
      "example": 104857600
    },
    "numberOfStripes": {
      "type": "integer",
      "example": 10
    },
    "stripes": {
      "type": "array",
      "items": {
        "$ref": "#/components/schemas/StripeInfo"
      }
    }
  }
}