Virtual columns Virtual column types Expression virtual column Nested field virtual column Nested path part List filtered virtual column Virtual columns Apache Druid suppo...

Optimize Flux queries Start queries with pushdowns Pushdown functions and function combinations Pushdown functions in use Avoid processing filters inline Avoid short window du...

Optimize Flux queries Start queries with pushdowns Pushdown functions and function combinations Pushdown functions in use Avoid processing filters inline Avoid short window du...

Add-ons, Integrations and Tools Maven Plugin Maven Archetypes Using Vaadin with Spring CDI Support Vaadin Designer Migrating from Vaadin 8 Designs Version Support Vaadin Tes...

How Kuma works Dependencies How Kuma works When building any modern digital application, we will inevitably introduce services that will communicate with each other by making r...

How Kuma works Dependencies How Kuma works When building any modern digital application, we will inevitably introduce services that will communicate with each other by making r...

Features Easy to Use Design for Kubernetes Features Easy to Use No special dependencies, Chaos Mesh can be easily deployed directly on Kubernetes clusters, including Minikube...

Understand The Basics Learn The Fundamentals Understand The Basics Before effectively using Argo CD, it is necessary to understand the underlying technology that the platform i...

Bootstrap configuration Bootstrap configuration To use the xDS API, it’s necessary to supply a bootstrap configuration file. This provides static server configuration and confi...

自定义回调处理是最常见的接口开发实现，开发中只需要对接口中的部分方法进行替换与修改，在驱动默认实现逻辑中注入自定义逻辑。所有的SQL 语句执行必定会通过DoQuery 或者DoExec 或者 DoFilter 接口，根据需求在自定义的驱动中实现并覆盖相关接口方法实现所需功能即可。 我们来看一个自定义回调处理的示例，现需要将所有执行的SQL 语句记录到mo...