Eventually compaction will remove the row when the sstable is merged/rewritten.
On Fri, May 17, 2019 at 8:06 AM Tom Vernon <t...@machineadvertising.com> wrote: > Hi, I'm having trouble getting my head around what happens to a partition > that no longer contains any data. As TTL is applied at the column level > (but not on the primary key), if I insert all values with a TTL then all of > those values will be tombstoned and eventually purged once they reach that > TTL. What then happens to that empty partition and key that had no TTL? > (assuming no more writes will happen to that unique partition key). Will > they remain in the keyspace indefinitely? Does this pose any challenges in > terms of performance/housekeeping? > > Thanks > Tom >