SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 5)
    Identifier id
    Identifier arr.k1
    Identifier arr.k2.k3
    Identifier arr.k2.k4
    Identifier arr.k2.k5
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier t_json_array
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier id
