ColumnLineageDatasetFacet.json

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://openlineage.io/spec/facets/1-0-1/ColumnLineageDatasetFacet.json",
  "$defs": {
    "ColumnLineageDatasetFacet": {
      "allOf": [{
        "$ref": "https://openlineage.io/spec/1-0-2/OpenLineage.json#/$defs/DatasetFacet"
      }, {
        "type": "object",
        "properties": {
          "fields": {
            "description": "Column level lineage that maps output fields into input fields used to evaluate them.",
            "type": "object",
            "additionalProperties": {
              "type": "object",
              "properties": {
                "inputFields": {
                  "type": "array",
                  "items": {
                    "type": "object",
                    "properties": {
                      "namespace": {
                        "type": "string",
                        "description": "The input dataset namespace"
                      },
                      "name": {
                        "type": "string",
                        "description": "The input dataset name"
                      },
                      "field": {
                        "type": "string",
                        "description": "The input field"
                      }
                    },
                    "additionalProperties": true,
                    "required": [
                      "namespace", "name", "field"
                    ]
                  }
                },
                "transformationDescription": {
                   "type": "string",
                   "description": "a string representation of the transformation applied"
                },
                "transformationType": {
                   "type": "string",
                   "description": "IDENTITY|MASKED reflects a clearly defined behavior. IDENTITY: exact same as input; MASKED: no original data available (like a hash of PII for example)"
                }
              },
              "additionalProperties": true,
              "required": ["inputFields"]
            }      
          }    
        },
        "additionalProperties": true,
        "required": [
          "fields"
        ]
      }],
      "type": "object"
    }
  },
  "type": "object",
  "properties": {
    "columnLineage": {
      "$ref": "#/$defs/ColumnLineageDatasetFacet"
    }
  }
}