B.2.1: Where can I obtain complete documentation for MySQL storage engines?
B.2.2: Are there any new storage engines in MySQL 5.0?
B.2.3: Have any storage engines been removed in MySQL 5.0?
What are the unique benefits of the
B.2.5: Do the new features in MySQL 5.0 apply to all storage engines?
Questions and Answers
See Chapter 14, Storage Engines. That chapter contains
information about all MySQL storage engines except for the
NDB storage engine used for MySQL
NDB is covered in
Chapter 17, MySQL Cluster.
FEDERATED storage engine, new in
MySQL 5.0, allows the server to access tables on
other (remote) servers. See
Section 14.7, “The
FEDERATED Storage Engine”.
Yes. MySQL 5.0 no longer supports the
ISAM storage engine. If you have any existing
ISAM tables from previous versions of MySQL,
you should convert these to
upgrading to MySQL 5.0.
ARCHIVE storage engine is ideally suited
for storing large amounts of data without indexes; it has a very
small footprint, and performs selects using table scans. See
Section 14.8, “The
ARCHIVE Storage Engine”, for details.
The general new features such as views, stored procedures,
INFORMATION_SCHEMA, precision math
DECIMAL column type), and the
BIT column type, apply to all
storage engines. There are also additions and changes for
specific storage engines.