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"
    }
  }
}