SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test_tuple_filter
   Function equals (children 1)
    ExpressionList (children 2)
     Function tuple (children 1)
      ExpressionList (children 2)
       Function tuple (children 1)
        ExpressionList (children 2)
         Identifier id
         Identifier value
       Function multiply (children 1)
        ExpressionList (children 2)
         Identifier id
         Literal UInt64_2
     Literal Tuple_(Tuple_(UInt64_1, \'A\'), UInt64_2)
