how to get input file name of a record in spark dataframe?
<p>I am creating a dataframe in spark by loading tab separated files from s3. I need to get the input file name information of each record in the dataframe for further processing. I tried </p>

<pre><code>dataframe.select(inputFileName())
</code></pre>

<p>But I am getting null value for input_file_name. somebody please help me to solve this issue.</p>