How to extract xml attributes using Xpath in Pig?
I wanted to extract the attributes form an xml using Pig Latin.
This is a sample of the xml file
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<span>2020-12-21 15:18</span>
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<p>There are 2 bugs in piggybank's XPath class:</p>
<ol>
<li><p>The ignoreNamespace logic breaks searching for XML attributes
https://issues.apache.org/jira/browse/PIG-4751</p></li>
<li><p>The ignoreNamepace parameter is defaulted to true and cannot be overwritten
https://issues.apache.org/jira/browse/PIG-4752</p></li>
</ol>
<p>Here is my workaround using XPathAll:</p>
<pre><code>XPathAll(x, 'BOOK/TITLE/@test', true, false).$0 as (test:chararray)
</code></pre>
<p>Also if you still need to ignore namespaces:</p>
<pre><code>XPathAll(x, '//*[local-name()=\'BOOK\']//*[local-name()=\'TITLE\']/@test', true, false).$0 as (test:chararray)
</code></pre>
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