如何判断被删除的分区是否存在

Question

如果分区存在，有没有办法确定delete 操作是否真的删除了一个分区？我正在运行以下cql 查询。我希望在指定无效分区时会出现错误，但我没有

cqlsh:mypartition> select * from users;

 bucket | email         | authprovider | firstname | lastname | confirmed | hasher     | id                                   | password     | salt
--------+---------------+--------------+-----------+----------+-----------+------------+--------------------------------------+--------------+------
      1 | test@test.com |  credentials |        fn |       ln |     False | someHasher | 11111111-1111-1111-1111-111111111111 | somePassword |

(1 rows)
cqlsh:mypartition> DELETE FROM users WHERE bucket=1 AND email='test1@test.com';
cqlsh:mypartition> select * from users;

 bucket | email         | authprovider | firstname | lastname | confirmed | hasher     | id                                   | password     | salt
--------+---------------+--------------+-----------+----------+-----------+------------+--------------------------------------+--------------+------
      1 | test@test.com |  credentials |        fn |       ln |     False | someHasher | 11111111-1111-1111-1111-111111111111 | somePassword |

(1 rows)
cqlsh:mypartition> DELETE FROM users WHERE bucket=1 AND email='test@test.com';
cqlsh:codingjedi> select * from users;

 bucket | email | authprovider | firstname | lastname | confirmed | hasher | id | password | salt
--------+-------+--------------+-----------+----------+-----------+--------+----+----------+------

(0 rows)
cqlsh:codingjedi>

Answer 1

你不能。删除只是写入，Cassandra 会在压缩中对其进行排序。