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dbcf987231
The keys classes (partition_key et al) already use managed_bytes, but they assume the data is not fragmented and make liberal use of that by casting to bytes_view. The view classes use bytes_view. Change that to managed_bytes_view, and adjust return values to managed_bytes/managed_bytes_view. The callers are adjusted. In some places linearization (to_bytes()) is needed, but this isn't too bad as keys are always <= 64k and thus will not be fragmented when out of LSA. We can remove this linearization later. The serialize_value() template is called from a long chain, and can be reached with either bytes_view or managed_bytes_view. Rather than trace and adjust all the callers, we patch it now with constexpr if. operator bytes_view (in keys) is converted to operator managed_bytes_view, allowing callers to defer or avoid linearization.