The aggregate function, COUNT, is applied to the records that remain after the stage-2 predicate filtering.
作为聚合功能的COUNT适用于在阶段2谓词过滤以后保留的记录。
Filtering is the process of displaying records that meet a given condition.
筛选是显示满足给定条件的记录的过程。
If the limit is too low, you aren′t filtering on a complete set of records.
如果限制数目太小，就不能对整个记录集进行筛选。
The process of implementation as follows: the matched filtering operators on two records A and B at same position are computed by deconvolution;
实现过程为：通过反褶积方法求取同一位置的两个记录A和B的匹配滤波算子；
You can limit the number of records you use to obtain aggregate results by filtering and sorting the columns.
您可限制所使用的资料录数目，以筛选条件和排序资料行来取得汇总结果。
You can limit the number of records you use to obtain aggregate results by filtering and sorting the columns.
您可限制所使用的资料录数目，以筛选条件和排序资料行来取得汇总结果。
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