All CFMetaData has a type, either Standard or Super. Right now, we do not
support Super, but we still would like to query for it, and use that information
to build our schemas.
Signed-off-by: Glauber Costa <glommer@cloudius-systems.com>
This initial version supports:
Regular columns
Clustering key
Compound Partition key
Compound Clustering key
Static Row
What's not supported:
Counters
Range tombstones
Collections
Compression
anything else that wasn't mentioned in the support list.
The generation of the data file consists of iterating through
a set of mutation_partition from a column_family, then writing
the SSTable rows according to the format.
Signed-off-by: Raphael S. Carvalho <raphaelsc@cloudius-systems.com>
Reviewed-by: Nadav Har'El <nyh@cloudius-systems.com>
Starting with LZ4, the default compressor.
Stub functions were added to other compression algorithms, which should
eventually be replaced with an actual implementation.
Signed-off-by: Raphael S. Carvalho <raphaelsc@cloudius-systems.com>
Reviewed-by: Nadav Har'El <nyh@cloudius-systems.com>
tuple_type is for managing our internal representation of keys. It
shares some interface with abstract_type, but the latter is a basis
for types of data stored in cells. tuple_type does not need to hide
behind a virtual interface.
Note: there is a TupleType in Origin, but it serves a different purpose.
Holding keys and their prefixes as "bytes" is error prone. It's easy
to mix them up (or use wrong types). This change adds wrappers for
keys with accessors which are meant to make misuses as difficult as
possible.
Prefix and full keys are now distinguished. Places which assumed that
the representation is the same (it currently is) were changed not to
do so. This will allow us to introduce more compact storage for non-prefix
keys.
