parallel scan中文什么意思

例句与用法

1. This hinders parallel scanning of data
   从而延缓了数据的并行扫描。
2. Used to synchronize access to a range generator during parallel scans
   用于同步在并行扫描期间对范围生成器的访问。
3. Used to synchronize access to read - ahead operations during key range parallel scans
   用于同步在关键范围并行扫描期间对预读操作的访问。