The schema_builder::build() method creates a copy of raw schema
internaly in a hope that builder will be updated and be asked to build
the resulting schema again (e.g. alternator uses this).
However, there are places that build schema using temporary object once
in a `return schema_builder().with_...().build()` manner. For those
invocations copying raw schema is just waste of cycles.
Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
Closesscylladb/scylladb#18094
5427967f45