query processing and optimization

基本解释

Query optimization and processing is a critical component of parallel database systems.
查询优化和处理是并行数据库管理系统的关键组成部分。
However, you should be cautious about performance implications, because the Preferred Data Source Pattern doesn't use parallel processing and query optimization.
然而，您应该注意性能问题，因为首选数据源模式没有使用并行处理和查询优化。
There are also some new key techniques for the system here, such as data model, query language model, routing policy, query processing, optimization strategy, and bidirectional delivery mechanism.
给出了系统中的关键技术，包括数据模型、查询语言模型、路由策略、查询处理及优化策略，以及双向递交机制。