SelectWithUnionQuery (children 2)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function arrayJoin (alias k1) (children 1)
     ExpressionList (children 1)
      Function arrayJoin (children 1)
       ExpressionList (children 1)
        Identifier arr.k1.:`Array(JSON)`
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier t_json_array
   ExpressionList (children 1)
    OrderByElement (children 1)
     Function toString (children 1)
      ExpressionList (children 1)
       Identifier k1
 Identifier JSONEachRow
