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https://issues.apache.org/jira/browse/PIG-934?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12749669#action_12749669
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Pradeep Kamath commented on PIG-934:
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Agree with both the above comments. I was wondering if instead of returning an
InputStream, if the code could return a SeekableInputStream it would be usable
in other scenarios (like creating a CBZip2InputStream out of it - this would be
needed for http://issues.apache.org/jira/browse/PIG-930 for example). Callers
only needing an InputStream would still be able to use the method.
> Merge join implementation currently does not seek to right point on the right
> side input based on the offset provided by the index
> ----------------------------------------------------------------------------------------------------------------------------------
>
> Key: PIG-934
> URL: https://issues.apache.org/jira/browse/PIG-934
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.3.1
> Reporter: Pradeep Kamath
> Assignee: Ashutosh Chauhan
> Attachments: pig-934.patch
>
>
> We use POLoad to seek into right file which has the following code:
> {noformat}
> public void setUp() throws IOException{
> String filename = lFile.getFileName();
> loader =
> (LoadFunc)PigContext.instantiateFuncFromSpec(lFile.getFuncSpec());
> is = FileLocalizer.open(filename, pc);
> loader.bindTo(filename , new BufferedPositionedInputStream(is),
> this.offset, Long.MAX_VALUE);
> }
> {noformat}
> Between opening the stream and bindTo we do not seek to the right offset.
> bindTo itself does not perform any seek.
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