query optimize 查询优化
Database partition could optimize query overhead physically.
数据库分片可以在物理上优化查询开销。
A query refinement system is designed and implemented. The experimentation results show the system can optimize query input efficiently.
设计实现了相应的查询优化系统，实验表明该系统可以有效提高搜索的准确率。
It is an unsolved problem using batched queries in compressed databases to construct an adaptive histogram to optimize query processing or answer queries approximately.
在压缩数据库中利用查询处理的特点构建自适应直方图以便于查询优化或近似回答查询是尚待解决的问题。
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