c0ad2a8e0e
We usually don't read the whole file into memory, so the probing interface will also allow for the specification of boundaries that we should be use for reading. The sstable needs to be informed - usually by the schema - of how many columns the partition key is composed of - 1 for simple keys, more than one, for composites. Signed-off-by: Glauber Costa <glommer@cloudius-systems.com>