群集索引 meaning in Chinese

clustered index
clustering index

The main purpose of allocating free space is to keep the data rows in the same physical sequence as the clustering index , thus reducing the need to frequently reorganize the data
分配空余空间的主要目的是使数据行的物理顺序与群集索引一致，以减少频繁重组数据的需要。
Including whether an index exists , the organization of the index number of leaf pages and number of levels , the number of discrete values for the index key , and whether the index is clustered
的当前状态，包括是否存在索引、索引的组织（叶子页的数量和级别的数量）、索引键的离散值的数量以及是否群集索引；