derive: Use global scope in quote

Author: YBoy-git

derive/src/lib.rs

@@ -54,10 +54,9 @@ pub fn row(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
 
     let (impl_generics, ty_generics, where_clause) = input.generics.split_for_impl();
 
-    // TODO: replace `clickhouse` with `::clickhouse` here.
     let expanded = quote! {
         #[automatically_derived]
-        impl #impl_generics clickhouse::Row for #name #ty_generics #where_clause {
+        impl #impl_generics ::clickhouse::Row for #name #ty_generics #where_clause {
             const COLUMN_NAMES: &'static [&'static str] = #column_names;
         }
     };