Deleted cells store deletion time not expiry time. This change makes
expiry() valid only for live cells with TTL and adds deletion_time(),
which is inteded to be used with deleted cells.
Origin does that, so should we. Both ttl and expiry time are stored in
sstables. The value of ttl seems to be used to calculate the read
digest (expiry is not used for that).
The API for creating atomic_cells changed a bit.
To create a non-expiring cell:
atomic_cell::make_live(timestamp, value);
To create an expiring cell:
atomic_cell::make_live(timestamp, value, expiry, ttl);
or:
// Expiry is calculated based on current clock reading
atomic_cell::make_live(timestamp, value, ttl_optional);
From Avi:
This patchsets completes the conversion of scalar functions (TOKEN is still
missing, and maybe others, but the infrastructure is there).
Conflicts:
database.cc
For serializing to commit log, and potentially internal wire messaging.
Note: intentionally incompatible with stock C wire/serial format.
Note: intentionally separate from the CQL-centric serialization
for a few reasons.
1.) Need "bulk serializers" for internal objects (mutation etc)
which might not fit well into the "types.hh" serializer schemes.
2.) No need for polymorphism/virtual type parameters since we know
exactly what we serialize and to where.
