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91a5a41313
Tablets metadata is quite expensive to generate (each data_value is an allocation), so an old driver (without support for tablets) will generate huge amounts of such notifications. This commit adds a way to negotiate generation of the notification: a new driver will ask for them, and an old driver won't get them. It uses the OPTIONS/SUPPORTED/STARTUP protocol described in native_protocol_v4.spec. Closes scylladb/scylladb#16611