Apache ORC · Schema

ColumnStatistics

ColumnStatistics schema from Apache ORC

Big DataColumnar StorageCompressionFile FormatHadoopApacheOpen-Source

Properties

Name	Type	Description
columnIndex	integer
columnName	string
valueCount	integer
nullCount	integer
hasMinimum	boolean
minimum	string
maximum	string

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-column-statistics-schema.json",
  "title": "ColumnStatistics",
  "description": "ColumnStatistics schema from Apache ORC",
  "type": "object",
  "properties": {
    "columnIndex": {
      "type": "integer",
      "example": 0
    },
    "columnName": {
      "type": "string",
      "example": "customer_id"
    },
    "valueCount": {
      "type": "integer",
      "example": 999500
    },
    "nullCount": {
      "type": "integer",
      "example": 500
    },
    "hasMinimum": {
      "type": "boolean",
      "example": true
    },
    "minimum": {
      "type": "string",
      "example": "1"
    },
    "maximum": {
      "type": "string",
      "example": "999999"
    }
  }
}