SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function length (alias l) (children 1)
     ExpressionList (children 1)
      Identifier b
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier tab_00717
   ExpressionList (children 4)
    Identifier l
    Function plus (children 1)
     ExpressionList (children 2)
      Identifier l
      Literal UInt64_1
    Function plus (children 1)
     ExpressionList (children 2)
      Identifier l
      Literal UInt64_2
    Function plus (children 1)
     ExpressionList (children 2)
      Identifier l
      Literal UInt64_3
