MySQL 8.0 Release Notes
MySQL 8.0 Source Code Documentation
Pre-General Availability Draft: 2017-07-17
Table of Contents [+/-]
This chapter discusses user-defined
partitioning. In MySQL 8.0, partitioning
support is provided by the InnoDB
storage engine. (The NDB storage engine
used by MySQL Cluster also provides partitioning support, but
NDB is not included in MySQL 8.0.)
MySQL 8.0 does not currently support partitioning of
tables using any storage engine other than
InnoDB, such as
MyISAM. An attempt to create a
partitioned tables using a storage engine that does not supply
native partitioning support fails with
ER_CHECK_NOT_IMPLEMENTED.
MySQL 8.0 Community binaries provided by Oracle include
partitioning support provided by the InnoDB
storage engine. For information about partitioning support offered
in MySQL Enterprise Edition binaries, see Chapter 29, MySQL Enterprise Edition.
If you are compiling MySQL 8.0 from source, configuring
the build with InnoDB support is sufficient to
produce binaries with partition support for
InnoDB tables. For more information, see
Section 2.8, “Installing MySQL from Source”.
Nothing further needs to be done to enable partitioning support by
InnoDB (for example, no special entries are
required in the my.cnf file).
It is not possible to disable partitioning support by the
InnoDB storage engine.
See Section 22.1, “Overview of Partitioning in MySQL”, for an introduction to partitioning and partitioning concepts.
Several types of partitioning are supported, as well as subpartitioning; see Section 22.2, “Partitioning Types”, and Section 22.2.6, “Subpartitioning”.
Section 22.3, “Partition Management”, covers methods of adding, removing, and altering partitions in existing partitioned tables.
Section 22.3.4, “Maintenance of Partitions”, discusses table maintenance commands for use with partitioned tables.
The PARTITIONS table in the
INFORMATION_SCHEMA database provides information
about partitions and partitioned tables. See
Section 24.13, “The INFORMATION_SCHEMA PARTITIONS Table”, for more information; for some
examples of queries against this table, see
Section 22.2.7, “How MySQL Partitioning Handles NULL”.
For known issues with partitioning in MySQL 8.0, see Section 22.6, “Restrictions and Limitations on Partitioning”.
Note
Table partitioning differs from partitioning as used by window functions. For information about the latter, see Section 12.19, “Window Functions”.
You may also find the following resources to be useful when working with partitioned tables.
Additional Resources. Other sources of information about user-defined partitioning in MySQL include the following:
This is the official discussion forum for those interested in or experimenting with MySQL Partitioning technology. It features announcements and updates from MySQL developers and others. It is monitored by members of the Partitioning Development and Documentation Teams.
MySQL Partitioning Architect and Lead Developer Mikael Ronström frequently posts articles here concerning his work with MySQL Partitioning and MySQL Cluster.
A MySQL news site featuring MySQL-related blogs, which should be of interest to anyone using my MySQL. We encourage you to check here for links to blogs kept by those working with MySQL Partitioning, or to have your own blog added to those covered.