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https://issues.apache.org/jira/browse/PIG-3647?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daniel Dai updated PIG-3647:
----------------------------
Attachment: PIG-3647-1.patch
The implement uses 2 DAG:
DAG 1. Build index for right input
DAG 2. Do merge join using the index
It is possible to use 1 DAG, however, currently there are too much logic inside
loader (MergeJoinIndexer to build index, DefaultIndexableLoader to read index),
migrate those will take time. I think we'd better move on and revisit later.
> Implement merge join in Tez
> ---------------------------
>
> Key: PIG-3647
> URL: https://issues.apache.org/jira/browse/PIG-3647
> Project: Pig
> Issue Type: Sub-task
> Components: tez
> Reporter: Daniel Dai
> Assignee: Daniel Dai
> Fix For: tez-branch
>
> Attachments: PIG-3647-1.patch
>
>
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