[jira] [Assigned] (SPARK-21315) Skip some spill files when generateIterator(startIndex) in ExternalAppendOnlyUnsafeRowArray.

2017-07-10 Thread Wenchen Fan (JIRA) 

 [ 
https://issues.apache.org/jira/browse/SPARK-21315?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Wenchen Fan reassigned SPARK-21315:
---

Assignee: jin xing

> Skip some spill files when generateIterator(startIndex) in 
> ExternalAppendOnlyUnsafeRowArray.
> 
>
> Key: SPARK-21315
> URL: https://issues.apache.org/jira/browse/SPARK-21315
> Project: Spark
>  Issue Type: Improvement
>  Components: SQL
>Affects Versions: 2.1.1
>Reporter: jin xing
>Assignee: jin xing
> Fix For: 2.3.0
>
>
> In current code, it is expensive to use 
> {{UnboundedFollowingWindowFunctionFrame}}, because it is iterating from the 
> start to lower bound every time calling {{write}} method. When traverse the 
> iterator, it's possible to skip some spilled files thus to save some time.



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[jira] [Assigned] (SPARK-21315) Skip some spill files when generateIterator(startIndex) in ExternalAppendOnlyUnsafeRowArray.

2017-07-05 Thread Apache Spark (JIRA) 

 [ 
https://issues.apache.org/jira/browse/SPARK-21315?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Apache Spark reassigned SPARK-21315:


Assignee: (was: Apache Spark)

> Skip some spill files when generateIterator(startIndex) in 
> ExternalAppendOnlyUnsafeRowArray.
> 
>
> Key: SPARK-21315
> URL: https://issues.apache.org/jira/browse/SPARK-21315
> Project: Spark
>  Issue Type: Improvement
>  Components: SQL
>Affects Versions: 2.1.1
>Reporter: jin xing
>
> In current code, it is expensive to use 
> {{UnboundedFollowingWindowFunctionFrame}}, because it is iterating from the 
> start to lower bound every time calling {{write}} method. When traverse the 
> iterator, it's possible to skip some spilled files thus to same some time.



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[jira] [Assigned] (SPARK-21315) Skip some spill files when generateIterator(startIndex) in ExternalAppendOnlyUnsafeRowArray.

2017-07-05 Thread Apache Spark (JIRA) 

 [ 
https://issues.apache.org/jira/browse/SPARK-21315?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Apache Spark reassigned SPARK-21315:


Assignee: Apache Spark

> Skip some spill files when generateIterator(startIndex) in 
> ExternalAppendOnlyUnsafeRowArray.
> 
>
> Key: SPARK-21315
> URL: https://issues.apache.org/jira/browse/SPARK-21315
> Project: Spark
>  Issue Type: Improvement
>  Components: SQL
>Affects Versions: 2.1.1
>Reporter: jin xing
>Assignee: Apache Spark
>
> In current code, it is expensive to use 
> {{UnboundedFollowingWindowFunctionFrame}}, because it is iterating from the 
> start to lower bound every time calling {{write}} method. When traverse the 
> iterator, it's possible to skip some spilled files thus to same some time.



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