mysql8.0对大量数据的处理——表分区 笔记

查找当前表分区信息

SELECT PARTITION_NAME,TABLE_ROWS,PARTITION_EXPRESSION,PARTITION_DESCRIPTION FROM INFORMATION_SCHEMA.PARTITIONS WHERE TABLE_SCHEMA=‘test’ AND TABLE_NAME = ‘t11’;

建立分区

alter table user.partition
partition by range (year(time))(
partition p2019 values less than (2020),
partition p2020 values less than (2021),
partition p2021 values less than maxvalue
)