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From "Alan Gates (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (PIG-209) Indexes for accelerating joins
Date Fri, 15 Jan 2010 06:02:54 GMT

     [ https://issues.apache.org/jira/browse/PIG-209?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alan Gates resolved PIG-209.
----------------------------

    Resolution: Won't Fix

At this point Pig is relying on storage formats such as Zebra to do indexing.  We have no
near term plans to provide indexing inside Pig itself.

> Indexes for accelerating joins
> ------------------------------
>
>                 Key: PIG-209
>                 URL: https://issues.apache.org/jira/browse/PIG-209
>             Project: Pig
>          Issue Type: New Feature
>          Components: data
>            Reporter: John DeTreville
>
> Computing the inner join of a very large table (i.e., bag or mapping) with a smaller
table can take time proportional to the size of the very large table. This time required can
be greatly reduced if the very large table is indexed, taking time proportional to the size
of the smaller table. It should be possible for clients to index tables for use by future
joins.

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