从cassandra cli中删除行键

我将我的列族gcgraceseconds设置为0; 但是仍然没有删除rowkey,它仍留在我的列族中

create column family workInfo123
with column_type = 'Standard'
  and comparator = 'UTF8Type'
  and default_validation_class = 'UTF8Type'
  and key_validation_class = 'UTF8Type'
  and read_repair_chance = 0.1
  and dclocal_read_repair_chance = 0.0
  and populate_io_cache_on_flush = true
  and gc_grace = 0 
  and min_compaction_threshold = 4
  and max_compaction_threshold = 32
  and replicate_on_write = true
  and compaction_strategy = 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy'
  and caching = 'KEYS_ONLY'
  and default_time_to_live = 0
  and speculative_retry = 'NONE'
  and compression_options = {'sstable_compression' : 'org.apache.cassandra.io.compress.LZ4Compressor'}
  and index_interval = 128;

见下面的观点

[default@winoriatest] list workInfo123;
Using default limit of 100
Using default cell limit of 100
-------------------
RowKey: a
-------------------
RowKey: xx

2 Rows Returned.
Elapsed time: 17 msec(s).

我正在使用cassandra -cli我应该改变其他任何东西

使用后 ./nodetool -host 127.0.0.1 compact

[default@winoriatest] list workInfo123;
Using default limit of 100
Using default cell limit of 100
-------------------
RowKey: xx

2 Rows Returned.
Elapsed time: 11 msec(s).

为什么xx还有？