The ALTER INDEX statement applies a schema change to an index.
Note:
This statement performs a schema change. For more information about how online schema changes work in CockroachDB, see Online Schema Changes.
For information on using ALTER INDEX, see the documents for its relevant subcommands.
| Subcommand | Description | 
|---|---|
| CONFIGURE ZONE | New in v2.1: Configure replication zones for an index. | 
| RENAME | Change the name of an index. | 
| SPLIT AT | Force a key-value layer range split at the specified row in the index. |