SQL function of ClickHouse and Update and Delete operations

1.SQL function 1.1 type detection function toTypeName select toTypeName(0); -- UInt8 select toTypeName(-0); -- UInt8 select toTypeName(1000); -- UInt16 select toTypeName(-1000); -- Int16 select toTypeName(10000000); -- UInt32 select toTypeName(-10000000); -- Int32 select toTypeName(1.99); -- Float64 select toTypeName(toFloat32(1.99)); ...

Posted on Fri, 08 Oct 2021 23:21:43 -0400 by mattcairns

3, Install Clickhouse (stand-alone & cluster) in docker

1, Install docker https://blog.csdn.net/weixin_39912640/article/details/120391027 2, Install zookeeper cluster The Clickhouse stand-alone does not use the zookeeper cluster. In the cluster mode, the inverted zookeeper cluster is required, but the zookeeper cluster is not necessarily required. https://blog.csdn.net/weixin_39912640/article/d ...

Posted on Tue, 21 Sep 2021 00:13:05 -0400 by Ixplodestuff8