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MySQL 8.0 Reference Manual  /  ...  /  ALTER TABLESPACE Syntax

13.1.9 ALTER TABLESPACE Syntax

ALTER TABLESPACE tablespace_name
    [RENAME TO tablespace_name] 
    [ENCRYPTION [=] {'Y' | 'N'}]
    [ENGINE [=] engine_name]

This statement can be used to rename an InnoDB general tablespace.

The CREATE TABLESPACE privilege is required to rename a general tablespace.

The ENGINE clause, which specifies the storage engine used by the tablespace, is deprecated and will be removed in a future release. The tablespace storage engine is known by the data dictionary, making the ENGINE clause obsolete. If the storage engine is specified, it must match the tablespace storage engine defined in the data dictionary.

RENAME TO operations are implicitly performed in autocommit mode, regardless of the autocommit setting.

A RENAME TO operation cannot be performed while LOCK TABLES or FLUSH TABLES WITH READ LOCK is in effect for tables that reside in the tablespace.

Exclusive metadata locks are taken on tables that reside in a general tablespace while the tablespace is renamed, which prevents concurrent DDL. Concurrent DML is supported.

The ENCRYPTION option is used to enable or disable page-level data encryption for an InnoDB general tablespace. Option values are not case-sensitive. The Encryption support for general tablespaces was introduced in MySQL 8.0.13. A keyring plugin must be installed and configured to encrypt a tablespace using the ENCRYPTION option.

When a general tablespace is encrypted, all tables residing in the tablespace are encrypted. Likewise, a table created in an encrypted general tablespace is encrypted.

The INPLACE algorithm is used when altering the ENCRYPTION attribute of a general tablespace. The INPLACE algorithm permits concurrent DML on tables that reside in the general tablespace. Concurrent DDL is blocked.

For more information, see Section 15.7.11, “InnoDB Tablespace Encryption”.


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