可以压缩的索引有bitmap、btree和索引组织的表。
Indexes that can be compressed are bitmap, btree and index organized tables.
这些改进对于使用大型业务智能化(BI)应用程序和数据仓库的组织尤其有意义，因为它们依赖于索引和临时表。
These enhancements will be of particular interest to organizations with large business intelligence (BI) applications and data warehouses, which depend on indexes and temporary tables.
因为词汇表不需要经过任何组织的批准，搜索引擎所有者能够根据自身需要设计自己的词汇表。
Because no approval body is in charge of vocabularies, the search engine owners were able to devise their own vocabulary to meet their needs.
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