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From "Reynold Xin (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (SPARK-9518) Clean up GenerateUnsafeRowJoiner
Date Mon, 03 Aug 2015 11:24:04 GMT

     [ https://issues.apache.org/jira/browse/SPARK-9518?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Reynold Xin resolved SPARK-9518.
--------------------------------
       Resolution: Fixed
    Fix Version/s: 1.5.0

> Clean up GenerateUnsafeRowJoiner
> --------------------------------
>
>                 Key: SPARK-9518
>                 URL: https://issues.apache.org/jira/browse/SPARK-9518
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>            Reporter: Reynold Xin
>            Assignee: Davies Liu
>             Fix For: 1.5.0
>
>
> [~davies]'s suggestion on how to rewrite it to be more clear:
> {code}
> Seq.tabulate(outputBitsetWords) { i => 
>   val bitset = if (i< bitset1Words) {
>     getLong(obj1, i * 8)
>   } else if (i == bitset1Words && bitset1Remainder > 0) {
>     getLong(obj1, i* 8) | getLong(obj2, 0) >>> bitset1Remainder
>   } else {
>     getLong(obj2, i - bitset1Words) <<< bitset1Remainder | getLong(obj2 i -
bitset1Words + 1) >>> bitset1Remainder
>   }
>   putLong(buf, i * 8, bitset)
> }
> {code}



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