The ALTER INDEX statement applies a schema change to an index.
Note:
To understand how CockroachDB changes schema elements without requiring table locking or other user-visible downtime, see Online Schema Changes in CockroachDB.For information on using ALTER INDEX, see the documents for its relevant subcommands.
| Subcommand | Description | 
|---|---|
| RENAME | Change the name of an index. | 
| SPLIT AT | (Documentation pending) Potentially improve performance by identifying ideal locations to split data in the key-value layer. |