Hive 如何替换配置单元列中的特殊字符？
我在hive中有一个需求，需要将非字母数字字符替换为u。 栏中数据为“Pranav_Wagde_job_1163_W.Pranav Ltr简历04.07.2016.pdf” 输出是Hive 如何替换配置单元列中的特殊字符？,hive,regexp-replace,Hive,Regexp Replace,我在hive中有一个需求，需要将非字母数字字符替换为u。 栏中数据为“Pranav_Wagde_job_1163_W.Pranav Ltr简历04.07.2016.pdf” 输出是 Pranav_Wagde_job_1163_W.Pranav Ltr-Resume 04.07.2016.pdf 我无法替换文件名中的点。 如何替换数据中除文件扩展名以外的所有点？如果支持正向前瞻，则可以添加一个替代项|来匹配所有点，但右侧有1+个字字符后跟字符串末尾的点除外 (?:[^0-9a-zA-Z._]|\
Pranav_Wagde_job_1163_W.Pranav Ltr-Resume 04.07.2016.pdf
如何替换数据中除文件扩展名以外的所有点？如果支持正向前瞻，则可以添加一个替代项
|(?:[^0-9a-zA-Z._]|\.(?!\w+$))
如果支持正向前瞻，则可以添加一个替代项
|(?:[^0-9a-zA-Z._]|\.(?!\w+$))
2009/pp>p>p>p>p>p>p>p>p>p>p>p>p>p>p>p>p>p>p>p>p>p>p>p>p>p>p>p>p>p>p>p>p>p>p>p>p>p>p>p>获得获得输出的结果，得到得到得到得到的输出的输出作为作为作为作为作为作为作为，UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU鸟。您的RegExp正在使用您在超链接中提供的工具，但不幸的是，它在配置单元中不起作用。我得到的输出是“Pranav\u Wagde\u job\u 1163\u W\u Pranav\u Ltr\u Resume\u 04\u 07\u 2016\u pdf”`尝试将另一个反斜杠重复两次，就像
\\W+/code>@Pranav整个模式将是（？：[^0-9a-zA-Z.\u124\\（？！\\ W+$）该公司的代码<获取该公司的代码代码>获取该公司的代码>获取该公司的代码>获取该公司的输出为获得该公司的输出为：UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU鸟。您的RegExp正在使用您在超链接中提供的工具，但不幸的是，它在配置单元中不起作用。我得到的输出是“Pranav\u Wagde\u job\u 1163\u W\u Pranav\u Ltr\u Resume\u 04\u 07\u 2016\u pdf”`试着将另一个反斜杠加倍，就像\\W+/code>@Pranav整个模式将是（？：[0-9a-zA-Z.]124\.（？！\\ W+$）