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0713c324d4
since we already have `format_as()` for `cql3_type::raw`, there is no
need to provide `cql3_type::raw` if the tree is compiled with {fmt} >= 10,
otherwise compiler is not able to figure out which one to match, see the
errror at the end of this commit message. so, in this change, we only
provide the specialized `fmt::formatter` for `cql3_type::raw` when
{fmt} < 10. this should address the FTBFS with {fmt} >= 10.
```
/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/type_traits:1040:25: error: ambiguous partial specializations of 'formatter<cql3::cql3_type::raw>'
1040 | = __bool_constant<__is_constructible(_Tp, _Args...)>;
| ^
/usr/lib/gcc/x86_64-redhat-linux/13/../../../../include/c++/13/type_traits:1046:16: note: in instantiation of template type alias '__is_constructible_impl' requested here
1046 | : public __is_constructible_impl<_Tp, _Args...>
| ^
/usr/include/fmt/core.h:1420:13: note: in instantiation of template class 'std::is_constructible<fmt::formatter<cql3::cql3_type::raw>>' requested here
1420 | !has_formatter<T, Context>::value))>
| ^
/usr/include/fmt/core.h:1421:22: note: while substituting prior template arguments into non-type template parameter [with T = cql3::cql3_type::raw]
1421 | FMT_CONSTEXPR auto map(const T&) -> unformattable_pointer {
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1422 | return {};
| ~~~~~~~~~~
1423 | }
| ~
```
Refs #13245
Signed-off-by: Kefu Chai <kefu.chai@scylladb.com>
Closes scylladb/scylladb#17986