{"additionalProperties": false, "required": ["AllowCleartext", "AllowDuplicates", "AllowJoinsOnColumnsWithDifferentNames", "PreserveNulls"], "type": "object", "properties": {"AllowCleartext": {"type": "boolean"}, "AllowJoinsOnColumnsWithDifferentNames": {"type": "boolean"}, "PreserveNulls": {"type": "boolean"}, "AllowDuplicates": {"type": "boolean"}}}