发布于 2015-09-14 15:08:04 | 162 次阅读 | 评论: 0 | 来源: 网络整理
The dropIndexes command drops one or all indexes from the current collection. To drop all indexes, issue the command like so:
{ dropIndexes: "collection", index: "*" }
To drop a single, issue the command by specifying the name of the index you want to drop. For example, to drop the index named age_1, use the following command:
{ dropIndexes: "collection", index: "age_1" }
The shell provides a useful command helper. Here’s the equivalent command:
db.collection.dropIndex("age_1");
警告
This command obtains a write lock on the affected database and will block other operations until it has completed.