SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 7)
    Function sum (children 1)
     ExpressionList (children 1)
      Function plus (children 1)
       ExpressionList (children 2)
        Identifier a
        Literal UInt64_1
    Function sum (children 1)
     ExpressionList (children 1)
      Identifier b
    Function count (children 1)
     ExpressionList (children 1)
      Identifier b
    Function avg (children 1)
     ExpressionList (children 1)
      Identifier b
    Function count (children 1)
     ExpressionList (children 1)
      Function plus (children 1)
       ExpressionList (children 2)
        Identifier a
        Literal UInt64_1
    Function sum (children 1)
     ExpressionList (children 1)
      Function plus (children 1)
       ExpressionList (children 2)
        Identifier a
        Literal UInt64_2
    Function count (children 1)
     ExpressionList (children 1)
      Identifier a
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier fuse_tbl
   Set