问题
How do you check which cql version is currently being used in cqlsh?
In sql, you do this:
Select @@version
回答1:
There are a couple of ways to go about this.
From within cqlsh, you can simply show version
.
aploetz@cqlsh> show version
[cqlsh 5.0.1 | Cassandra 2.1.8 | CQL spec 3.2.0 | Native protocol v3]
However, that only works from within cqlsh. Fortunately, you can also query system.local
for that information as well.
aploetz@cqlsh> SELECT cql_version FROM system.local;
cql_version
-------------
3.2.0
(1 rows)
The system.local
table has other useful bits of information about your current node, cluster, and Cassandra tool versions as well. For more info, check it out with either SELECT * FROM system.local;
(only has 1 row) or desc table system.local
.
来源:https://stackoverflow.com/questions/31502442/check-cql-version-with-cassandra-and-cqlsh