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Nandor Kollar commented on PIG-4938: ------------------------------------ Hi Daniel, Attached the patch, and created a review on review board too: https://reviews.apache.org/r/49704 The patch addresses PIG-4752 too. > [PiggyBank] XPath returns empty values when using aggregation method > -------------------------------------------------------------------- > > Key: PIG-4938 > URL: https://issues.apache.org/jira/browse/PIG-4938 > Project: Pig > Issue Type: Bug > Components: piggybank > Affects Versions: 0.15.0 > Reporter: Ivo Lenting > Assignee: Nandor Kollar > Priority: Minor > Attachments: PIG-4938.patch > > > I have a xml file which I want to parse using the piggybank XPath udf. > The xml is: > <Aa name="test1"> > <Bb Cc="1"/> > <Bb Cc="1"/> > <Bb Cc="1"/> > <Bb Cc="1"/> > <Dd>test2</Dd> > </Aa> > The xpath contains a sum aggregate to sum all Cc values. > The complete pig script: > REGISTER piggybank.jar > DEFINE XPath org.apache.pig.piggybank.evaluation.xml.XPath(); > DEFINE XPathAll org.apache.pig.piggybank.evaluation.xml.XPathAll(); > XMLFile = LOAD '/demo/test.xml' using > org.apache.pig.piggybank.storage.XMLLoader('Aa') as (xmlContents:chararray); > MyOutput = FOREACH XMLFile GENERATE > XPathAll(xmlContents,'Aa/@name',true,false).$0 AS > Aa:chararray,XPath(xmlContents,'sum(Aa/Bb/@Cc)') AS Cc:Double, > XPath(xmlContents,'Aa/Dd') AS Dd:chararray; > STORE MyOutput INTO 'Output/MyOutput' USING PigStorage('|'); > MyOutput: > test1||test2 > So i'm missing the aggregate 4 in column 2. -- This message was sent by Atlassian JIRA (v6.3.4#6332)