tuple_regexp_select— Select tuple elements matching a regular expression. Signature Description Please refer to the documentation oftuple_regexp_matchfor syntax and options of regular expressions. Additionally,tuple_regexp_selectsupports the option'invert_match', which causes those input strings to be...
tuple_regexp_selectapplies the regular expression inExpressionto one or more input strings inData, and returns the matching string elements inSelection. This is convenient, e.g., for filtering a list of files obtained using the operatorlist_files. ...
tuple_regexp_select参数接受一个正则表达式作为输入,用于匹配元组中的值。匹配成功的元组将被选择并返回。该参数支持多种正则表达式语法,可以根据具体需求进行选择。在使用该参数时,需要注意正则表达式的编写和匹配规则,以确保选择出的元组符合预期。 总之,tuple_regexp_select参数是一个功能强大的Python函数参数,可以帮助...
tuple_regexp_select参数 tuple_regexp_select参数是指在Python中使用re模块中的findall函数时,可以通过该参数来指定匹配的文本所在的元组位置。 举个例子,如果有一个元组列表如下: ```python data = [('apple', '3.99'), ('orange', '2.99'), ('banana', '1.99'), ('grape', '4.99')] ``` 现在...
下面是一个tuple_regexp_select算子的例程: ```python import re from pyspark.sql.functions import udf from pyspark.sql.types import BooleanType #定义一个UDF函数,用于判断给定的字符串是否匹配正则表达式 def match_regex(regex, string): return bool(re.match(regex, string)) #注册UDF函数 match_regex_...
tuple_regexp_select— Select tuple elements matching a regular expression. Signature Description Please refer to the documentation oftuple_regexp_matchfor syntax and options of regular expressions. Additionally,tuple_regexp_selectsupports the option'invert_match', which causes those input strings to be...
tuple_regexp_select— Select tuple elements matching a regular expression. Signature Description Please refer to the documentation oftuple_regexp_matchfor syntax and options of regular expressions. Additionally,tuple_regexp_selectsupports the option'invert_match', which causes those input strings to be...
tuple_regexp_select算子的例程 tuple_regexp_select算子是一种用于过滤元组的算子,它能够根据正则表达式来匹配元组中的某个属性,并将匹配成功的元组筛选出来。下面是一个使用tuple_regexp_select算子的例程: ```python from pyspark import SparkContext from pyspark.sql import SparkSession #创建SparkSession spark ...
tuple_regexp_select— Select tuple elements matching a regular expression.Signaturetuple_regexp_select( : : Data, Expression : Selection) Descriptiontuple_regexp_select applies the regular expression in Expression to one or more input strings in Data, and returns the matching string elements in ...