创建,增加，删除mysql表分区

http://www.2cto.com/database/201503/380348.html

https://wenku.baidu.com/view/629d6cf4ddccda38366baf57.html




MySQL的表分区详解 - 查看分区数据量，查看全库数据量

SELECT
  partition_name part, 
  partition_expression expr, 
  partition_description descr, 
  table_rows 
FROM
  INFORMATION_SCHEMA.partitions 
WHERE
  TABLE_SCHEMA = schema() 
  AND TABLE_NAME='table';