Amazon Keyspace TRUNCATE 指令不起作用

Question

在 AWS 上的 Amazon Keyspaces 上，我无法截断我的 table.. 您知道为什么吗？该指令似乎存在于 CQL 上，但即使在 MCS 上的 CQL 编辑器上也不起作用。

 ...:~/.cassandra$ cqlsh ... ... -u "...." -p "..." --ssl
 
 Connected to Amazon Managed Apache Cassandra Service at ....
 
 [cqlsh 5.0.1 | Cassandra 3.11.2 | CQL spec 3.4.4 | Native protocol v4]
 
 Use HELP for help.
 
 ...@cqlsh> TRUNCATE sfd.countries_tbl;
 
 InvalidRequest: Error from server: code=2200 [Invalid query]
 message="Unsupported statement:
 org.apache.cassandra.cql3.statements.TruncateStatement@f2c4a18"
 
 ...@cqlsh> TRUNCATE TABLE sfd.countries_tbl; InvalidRequest: Error
 from server: code=2200 [Invalid query] message="Unsupported statement:
 org.apache.cassandra.cql3.statements.TruncateStatement@55cfc2f8"
 
 ...@cqlsh> USE sfd;
 
 ...@cqlsh:sfd> TRUNCATE sfd.countries_tbl;
 
 InvalidRequest: Error from server: code=2200 [Invalid query]
 message="Unsupported statement:
 org.apache.cassandra.cql3.statements.TruncateStatement@3530b57a"
 
 ...@cqlsh:sfd> TRUNCATE TABLE sfd.countries_tbl; InvalidRequest: Error
 from server: code=2200 [Invalid query] message="Unsupported statement:
 org.apache.cassandra.cql3.statements.TruncateStatement@4e4c59b"
 
 ...@cqlsh:sfd> TRUNCATE TABLE countries_tbl; InvalidRequest: Error
 from server: code=2200 [Invalid query] message="Unsupported statement:
 org.apache.cassandra.cql3.statements.TruncateStatement@764173fa"
 
 ...@cqlsh:sfd> TRUNCATE countries_tbl; InvalidRequest: Error from
 server: code=2200 [Invalid query] message="Unsupported statement:
 org.apache.cassandra.cql3.statements.TruncateStatement@9a42377"

Answer 1

MCS 不支持截断操作。在此处查看 is/is 不支持的内容：https://docs.aws.amazon.com/mcs/latest/devguide/cassandra-apis.html

Answer 2

柯克说得对，这个名单会不断缩小。

Amazon Keyspace TRUNCATE 指令不起作用

Amazon Keyspace TRUNCATE instruction doesn't work

truncate

cql

amazon-web-services

cassandra

amazon-keyspaces