{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://openlineage.io/spec/facets/1-1-0/ColumnLineageDatasetFacet.json",
  "$defs": {
    "ColumnLineageDatasetFacet": {
      "allOf": [
        {
          "$ref": "https://openlineage.io/spec/2-0-2/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"
                        },
                        "transformations": {
                          "type": "array",
                          "items": {
                            "type": "object",
                            "properties": {
                              "type": {
                                "description": "The type of the transformation. Allowed values are: DIRECT, INDIRECT",
                                "type": "string"
                              },
                              "subtype": {
                                "type": "string",
                                "description": "The subtype of the transformation"
                              },
                              "description": {
                                "type": "string",
                                "description": "a string representation of the transformation applied"
                              },
                              "masking": {
                                "type": "boolean",
                                "description": "is transformation masking the data or not"
                              }
                            },
                            "required": ["type"],
                            "additionalProperties": true
                          }
                        }
                      },
                      "additionalProperties": true,
                      "required": ["namespace", "name", "field"]
                    }
                  },
                  "transformationDescription": {
                    "type": "string",
                    "description": "a string representation of the transformation applied",
                    "deprecated": true
                  },
                  "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)",
                    "deprecated": true
                  }
                },
                "additionalProperties": true,
                "required": ["inputFields"]
              }
            }
          },
          "additionalProperties": true,
          "required": ["fields"]
        }
      ],
      "type": "object"
    }
  },
  "type": "object",
  "properties": {
    "columnLineage": {
      "$ref": "#/$defs/ColumnLineageDatasetFacet"
    }
  }
}