MySQL partition functions and restrictions

MySQL partitions are easy to use, but what can be done by MySQL partitions? Are there any restrictions on MySQL partitions? After reading the following, you can find the answer.

What can I do with MySQL partitions?

Logical Data Segmentation

Improve the speed of a single write and read Application

Improve the speed of reading and querying by partition range

Split data can have multiple physical file paths

Efficiently saves historical data

Check constraints on a table

Different master/slave server partition policies, such as master partitioning by Hash and slave partitioning by range
 

MySQL partition restrictions

• Only integer columns in the data table can be partitioned, or data columns can be converted to integer columns through the partition function.

• The maximum number of partitions cannot exceed 1024

• If it contains a unique index or primary key, the partition column must be included in all unique indexes or primary keys.

• Foreign keys are not supported

• Full-text index fulltext is not supported)

Partitioning by date is very suitable because many date functions can be used. However, there are not many suitable partition functions for strings.

Two MySQL partitions

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