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.

表数据倾斜指的是特定的一些数据库分区上的某个表内的记录数与这个表所跨的所有数据库分区的平均记录数之间的差额。

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We found a bigger difference for queries that touch a large number of rows, such as a table scan over all 20,000 XML documents with string comparison on every document.

我们发现涉及大量行的查询的性能差异比较大，比如对所有20,000个XML文档进行全表扫描并对每个文档比较字符串。

youdao

The difference is that this time you should select all fields from the PROJECT table of course.

不同之处是，这一次应该选择 PROJECT 表中的所有字段。

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But the Dons secured a point that lifts them off the bottom of the table on goal difference ahead of Dunfermline Athletic, whose game was postponed because of fog, and Hibernian.

BBC: Sport - Aberdeen 2-2 St Mirren

Andy Thorn's side move off the bottom of the table on goal difference at the expense of Doncaster.

BBC: Sport - Coventry 2-0 Brighton

Leaders Bayern entered the German winter break top of the table on goal difference from Bremen, both clubs having 36 points -- four clear of third-placed Hamburg.

CNN: Borowski agrees 3-year Bayern deal