In explicit UPDATE STATISTICS operations in MEDIUM mode, a new SAMPLING SIZE option in the resolution clause specifies the minimum number of rows to sample for column distributions.

在使用MEDIUM模式的显式的UPDATE STATISTICS操作中，可以在resolution子句中使用新的SAMPLING SIZE选项为列分布抽样指定最小行数。

youdao

Also, it is quite intensive to run UPDATE STATISTICS in the high mode ina production system that runs continually.

而且，在连续运行的生成系统中，以high模式运行UPDATE STATISTICS显得过于密集。

youdao

What happens when I set the resolution to 0.5 and confidence to 0.99 and run UPDATE STATISTICS in the MEDIUM mode?

当我将分辨率设为0.5，置信度设为0.99，并以MEDIUM模式运行UPDATE STATISTICS时，会发生什么情况？

youdao