{
  "db_name": "PostgreSQL",
  "query": "WITH RECURSIVE item_class_children AS (\n                SELECT\n                    item_classes.id,\n                    array_remove(array_agg(children.id), NULL) AS \"children\"\n                FROM item_classes\n                LEFT JOIN item_classes AS \"children\"\n                    ON item_classes.id = children.parent\n                GROUP BY item_classes.id\n            ),\n            cte AS (\n                SELECT\n                    item_classes.id,\n                    item_classes.name,\n                    item_class_children.children,\n                    0 AS \"reverse_level\"\n                FROM item_classes\n                JOIN item_class_children\n                    ON item_classes.id = item_class_children.id\n                WHERE item_class_children.children = '{}'\n\n                UNION\n\n                SELECT\n                    item_classes.id,\n                    item_classes.name,\n                    item_class_children.children,\n                    cte.reverse_level + 1\n                FROM item_classes\n                JOIN item_class_children\n                    ON item_classes.id = item_class_children.id\n                JOIN cte\n                    ON cte.id = ANY (item_class_children.children)\n            )\n            SELECT\n                id AS \"id!\",\n                name AS \"name!\",\n                children AS \"children!\"\n            FROM cte\n            GROUP BY id, name, children\n            ORDER BY max(reverse_level)",
  "describe": {
    "columns": [
      {
        "ordinal": 0,
        "name": "id!",
        "type_info": "Uuid"
      },
      {
        "ordinal": 1,
        "name": "name!",
        "type_info": "Varchar"
      },
      {
        "ordinal": 2,
        "name": "children!",
        "type_info": "UuidArray"
      }
    ],
    "parameters": {
      "Left": []
    },
    "nullable": [
      null,
      null,
      null
    ]
  },
  "hash": "689a5177bdbc4ac788579a47fe033eb6b9639a356fe7ec543691e385ffef51e7"
}