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https://issues.apache.org/jira/browse/PIG-161?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12605657#action_12605657
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Alan Gates commented on PIG-161:
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Might something like matrix multiplication (for small enough matrices) be done
with a UDF that takes two bags?
> Rework physical plan
> --------------------
>
> Key: PIG-161
> URL: https://issues.apache.org/jira/browse/PIG-161
> Project: Pig
> Issue Type: Sub-task
> Reporter: Alan Gates
> Assignee: Alan Gates
> Attachments: arithmeticOperators.patch, BinCondAndNegative.patch,
> CastAndMapLookUp.patch, incr2.patch, incr3.patch, incr4.patch, incr5.patch,
> logToPhyTranslator.patch, missingOps.patch,
> MRCompilerTests_PlansAndOutputs.txt, Phy_AbsClass.patch, physicalOps.patch,
> physicalOps.patch, physicalOps.patch, physicalOps.patch,
> physicalOps_latest.patch, POCast.patch, POCast.patch, podistinct.patch,
> pogenerate.patch, pogenerate.patch, pogenerate.patch, posort.patch,
> POUserFuncCorrection.patch,
> TEST-org.apache.pig.test.TestLocalJobSubmission.txt,
> TEST-org.apache.pig.test.TestLogToPhyCompiler.txt,
> TEST-org.apache.pig.test.TestLogToPhyCompiler.txt,
> TEST-org.apache.pig.test.TestMapReduce.txt,
> TEST-org.apache.pig.test.TestTypeCheckingValidator.txt,
> TEST-org.apache.pig.test.TestUnion.txt, translator.patch, translator.patch,
> translator.patch, translator.patch
>
>
> This bug tracks work to rework all of the physical operators as described in
> http://wiki.apache.org/pig/PigTypesFunctionalSpec
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