SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function sum (alias j) (children 1)
     ExpressionList (children 1)
      Function plus (children 1)
       ExpressionList (children 2)
        Literal UInt64_1
        Identifier uint64
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test_table
   Function greater (children 1)
    ExpressionList (children 2)
     Identifier j
     Literal UInt64_0
