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Posted to dev@pig.apache.org by "Thejas M Nair (JIRA)" <ji...@apache.org> on 2010/08/21 02:24:16 UTC
[jira] Created: (PIG-1554) PERF: create accumulative bag in
RelationToExpressionProject
PERF: create accumulative bag in RelationToExpressionProject
------------------------------------------------------------
Key: PIG-1554
URL: https://issues.apache.org/jira/browse/PIG-1554
Project: Pig
Issue Type: Improvement
Reporter: Thejas M Nair
RelationToExpressionProject creates a DefaultDataBag out of the results of PODistinct and POSort . If the results of the plan are going to be consumed by a operations that support accumulative interface such as COUNT the results can be linked to a new Accumulative bag .
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[jira] Updated: (PIG-1554) PERF: create accumulative bag in
RelationToExpressionProject
Posted by "Thejas M Nair (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/PIG-1554?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Thejas M Nair updated PIG-1554:
-------------------------------
Description:
In nested-foreach, RelationToExpressionProject creates a DefaultDataBag out of the results of PODistinct and POSort . If the results of the plan are going to be consumed by a operations that support accumulative interface such as COUNT the results can be linked to a new Accumulative bag .
was:
RelationToExpressionProject creates a DefaultDataBag out of the results of PODistinct and POSort . If the results of the plan are going to be consumed by a operations that support accumulative interface such as COUNT the results can be linked to a new Accumulative bag .
> PERF: create accumulative bag in RelationToExpressionProject
> ------------------------------------------------------------
>
> Key: PIG-1554
> URL: https://issues.apache.org/jira/browse/PIG-1554
> Project: Pig
> Issue Type: Improvement
> Reporter: Thejas M Nair
>
> In nested-foreach, RelationToExpressionProject creates a DefaultDataBag out of the results of PODistinct and POSort . If the results of the plan are going to be consumed by a operations that support accumulative interface such as COUNT the results can be linked to a new Accumulative bag .
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[jira] Commented: (PIG-1554) PERF: create accumulative bag in
RelationToExpressionProject
Posted by "Olga Natkovich (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/PIG-1554?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12925221#action_12925221 ]
Olga Natkovich commented on PIG-1554:
-------------------------------------
most of the time for COUNT, the algebraic interface will be used. I am actually not sure how often accumulator interface is used at this point so not sure how many queries would be improved by this change
> PERF: create accumulative bag in RelationToExpressionProject
> ------------------------------------------------------------
>
> Key: PIG-1554
> URL: https://issues.apache.org/jira/browse/PIG-1554
> Project: Pig
> Issue Type: Improvement
> Reporter: Thejas M Nair
> Assignee: Thejas M Nair
> Fix For: 0.9.0
>
>
> In nested-foreach, RelationToExpressionProject creates a DefaultDataBag out of the results of PODistinct and POSort . If the results of the plan are going to be consumed by a operations that support accumulative interface such as COUNT the results can be linked to a new Accumulative bag .
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[jira] Updated: (PIG-1554) PERF: create accumulative bag in
RelationToExpressionProject
Posted by "Alan Gates (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/PIG-1554?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alan Gates updated PIG-1554:
----------------------------
Assignee: Thejas M Nair
Fix Version/s: 0.9.0
> PERF: create accumulative bag in RelationToExpressionProject
> ------------------------------------------------------------
>
> Key: PIG-1554
> URL: https://issues.apache.org/jira/browse/PIG-1554
> Project: Pig
> Issue Type: Improvement
> Reporter: Thejas M Nair
> Assignee: Thejas M Nair
> Fix For: 0.9.0
>
>
> In nested-foreach, RelationToExpressionProject creates a DefaultDataBag out of the results of PODistinct and POSort . If the results of the plan are going to be consumed by a operations that support accumulative interface such as COUNT the results can be linked to a new Accumulative bag .
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