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Posted to issues@spark.apache.org by "Cheng Lian (JIRA)" <ji...@apache.org> on 2014/05/16 13:23:36 UTC

[jira] [Commented] (SPARK-1368) HiveTableScan is slow

    [ https://issues.apache.org/jira/browse/SPARK-1368?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13998619#comment-13998619 ] 

Cheng Lian commented on SPARK-1368:
-----------------------------------

Corresponding PR: https://github.com/apache/spark/pull/758

> HiveTableScan is slow
> ---------------------
>
>                 Key: SPARK-1368
>                 URL: https://issues.apache.org/jira/browse/SPARK-1368
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>            Reporter: Michael Armbrust
>             Fix For: 1.1.0
>
>
> The major issues here are the use of functional programming (.map, .foreach) and the creation of a new Row object for each output tuple. We should switch to while loops in the critical path and a single MutableRow per partition.



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