UnaryExpression

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/apache-iceberg/refs/heads/main/json-schema/rest-catalog-open-api-unary-expression-schema.json",
  "title": "UnaryExpression",
  "description": "UnaryExpression schema from Apache Iceberg REST Catalog API",
  "type": "object",
  "properties": {
    "type": {
      "$ref": "#/components/schemas/ExpressionType",
      "enum": [
        "is-null",
        "not-null",
        "is-nan",
        "not-nan"
      ]
    },
    "term": {
      "$ref": "#/components/schemas/Term"
    }
  },
  "required": [
    "type",
    "term"
  ]
}