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From "Richard Ding (JIRA)" <j...@apache.org>
Subject [jira] Updated: (PIG-1072) ReversibleLoadStoreFunc interface should be removed to enable different load and store implementation classes to be used in a reversible manner
Date Wed, 25 Nov 2009 22:43:39 GMT

     [ https://issues.apache.org/jira/browse/PIG-1072?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Richard Ding updated PIG-1072:
------------------------------

    Attachment: PIG-1072.patch

This patch removes ReversibleLoadStoreFunc interface and any references to it.

We decided not to add the API proposed in this jira for now because currently neither Multi
Query optimization nor Streaming optimization uses ReversibleLoadStoreFunc in load-store branch.
And it's not clear if this annotation would be needed in the future.

For example, the original use of ReversibleLoadStoreFunc in MQ optimization is to remove Store/Load
combination (with same file path for both). This use pattern was popular for performance reasons
before the introducing of MQ optimization. With MQ optimization, there is no reason to use
this pattern anymore. 




> ReversibleLoadStoreFunc interface should be removed to enable different load and store
implementation classes to be used in a reversible manner
> -----------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: PIG-1072
>                 URL: https://issues.apache.org/jira/browse/PIG-1072
>             Project: Pig
>          Issue Type: Sub-task
>            Reporter: Pradeep Kamath
>            Assignee: Richard Ding
>         Attachments: PIG-1072.patch
>
>


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