A : Local indexes do not store the2-byte partition identifier in the rowid of each key record .
A:本地索引不在每个键记录的rowid中存储2字节分区标识符。
ROWID pseudocolumn Rowids are used to quickly retrieve a row that was previously fetched based on its physical address .
ROWID伪列Rowid用于快速获取之前根据其物理地址获取的行。