The percentage sampling transformation creates a sample data set by selecting a percentage of the transformation input rows 百分比抽样转换通过选择转换输入行的百分比来创建样本数据集。
Each input row can be sent to only one output , that being the output for the first condition that evaluates to true 每个输入行只能被发送到一个输出，即第一个计算结果为true的条件的输出。
By default you can use the cursor keys , and backspace , to move around and edit the input line , just like with the bash shell 可以缺省地使用光标和退格键来移动和编辑输入行，就象在bash shell中一样。
Because many input rows can result only in one output row , the transformation copies only the first input value for the column 因为有许多输入行只能产生一个输出行，所以转换只复制列的第一个输入值。
When the query is processed , intermediate tables and operators may have to store and process rows that are wider than any one of the input rows 处理查询时，中间表和运算符可能需要存储和处理比输入行宽的行。
Directs input rows to one of two outputs depending on the value of the similarity score determined by the fuzzy lookup 依据_ similarity的条件性拆分）根据模糊查找确定的相似性得分将输入行定向至两个输出之一。
This transformation is similar to the row sampling transformation , which creates a sample data set by selecting a specified number of the input rows 此转换类似于行抽样转换，后者通过选择指定数量的输入行来创建样本数据集。
This transformation is similar to the percentage sampling transformation , which creates a sample dataset by selecting a percentage of the input rows 此转换类似于百分比抽样转换，后者通过选择输入行的百分比来创建样本数据集。
One line should be output corresponding to one input line . if an input line does not contain any palindromes , an empty line should be output 对于每一个输入行，应该输出一行。如果一个输入行不包括一个回文，应该输出一个空行。
Column is a value between 0 . 0 and 1 . 0 that describes the textual similarity between a given input row and the row selected to be the canonical value 列的值介于0 . 0到1 . 0之间，表示给定的输入行和选为规范值的行之间的文本相似性。
