Table data skew refers to a difference between the number of records in a table on particular database partitions and the average number of records across all database partitions for this table.
From the best practices perspective, the table data skew on every individual database partition should be no more than 10%.
从最佳实践的角度来看，各个数据库分区上的表数据倾斜应该不多于10%。
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You are either designing a new table that will be hash-partitioned, or you have an existing hash-partitioned table that might have a data skew problem.