SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 4)
    Identifier lhs.id
    Identifier rhs.id
    Identifier lhs.value
    Identifier rhs.value
   TablesInSelectQuery (children 2)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test_table_1 (alias lhs)
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      TableIdentifier test_table_2 (alias rhs)
     TableJoin (children 1)
      Function equals (children 1)
       ExpressionList (children 2)
        Identifier lhs.id
        Identifier rhs.id
   Function equals (children 1)
    ExpressionList (children 2)
     Identifier rhs.id
     Literal UInt64_5
