Deletes a key range.

>>> store = await ts.KvStore.open({'driver': 'memory'})
>>> await store.write(b'a', b'value')
>>> await store.write(b'b', b'value')
>>> await store.write(b'c', b'value')
>>> await store.list()
[b'a', b'b', b'c']
>>> await store.delete_range(ts.KvStore.KeyRange(b'aa', b'cc'))
>>> await store.list()
[b'a']

Parameters:¶

range: KvStore.KeyRange¶

Key range to delete. This is relative to the existing path, if any.

Returns:¶

• If no transaction is specified, returns a Future that becomes ready when the delete operation has completed and durability is guaranteed (to the extent supported by the driver).

• If a transaction is specified, returns a Future that becomes ready when the delete operation is recorded in the transaction. The delete operation is not actually performed until the transaction is committed.