MCS AWS TRUNCATE指令不起作用

Question

在AWS的MCS上，我无法截断我的表。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编辑器上也无法使用。

 ...:~/.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

截断在MCS中不受支持。在此处查看/不支持什么：https://docs.aws.amazon.com/mcs/latest/devguide/cassandra-apis.html