SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 4)
    Literal UInt64_1 (alias constant)
    Identifier user_id
    Identifier job_id
    Function sum (children 1)
     ExpressionList (children 1)
      Identifier metric
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier my_first_table
   ExpressionList (children 3)
    Identifier constant
    Identifier user_id
    Identifier job_id
   ExpressionList (children 6)
    OrderByElement (children 1)
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier constant
       Literal UInt64_0
    OrderByElement (children 1)
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier user_id
       Literal UInt64_0
    OrderByElement (children 1)
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier job_id
       Literal UInt64_0
    OrderByElement (children 1)
     Identifier constant
    OrderByElement (children 1)
     Identifier user_id
    OrderByElement (children 1)
     Identifier job_id
