索引部分 meaning in English

index component

The alter index statement can be used to rebuild an index part of a constraint definition ; the constraint does not have to be dropped and added again with alter table
Alter index语句可用于重新生成约束定义的索引部分；而不必再使用alter table来删除和添加约束。
The second part includes the index of child suffix tree , and some other information for finding the location of every child suffix tree in disk quickly
第二部分是索引部分,包括子后缀树的索引和其他信息。利用这部分信息,可以快速定位每棵子后缀树在磁盘中的位置。