spark-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Xiao Li (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-12061) [SQL] Dataset API: Adding Persist for Map/filter with Lambda Functions
Date Tue, 01 Dec 2015 00:17:11 GMT

     [ https://issues.apache.org/jira/browse/SPARK-12061?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Xiao Li updated SPARK-12061:
----------------------------
    Description: 
So far, the existing caching mechanisms do not work on dataset operations when using map/filter
with lambda functions. For example, 
[code]
  test("persist and then map/filter with lambda functions") {
    val f = (i: Int) => i + 1

    val ds = Seq(1, 2, 3).toDS()
    val mapped = ds.map(f)
    mapped.cache()

    val mapped2 = ds.map(f)
    assertCached(mapped2)
  }
[code]

  was:
So far, the existing caching mechanisms do not work on dataset operations when using map/filter
with lambda functions. For example, 

  test("persist and then map/filter with lambda functions") {
    val f = (i: Int) => i + 1

    val ds = Seq(1, 2, 3).toDS()
    val mapped = ds.map(f)
    mapped.cache()

    val mapped2 = ds.map(f)
    assertCached(mapped2)
  }


> [SQL] Dataset API: Adding Persist for Map/filter with Lambda Functions
> ----------------------------------------------------------------------
>
>                 Key: SPARK-12061
>                 URL: https://issues.apache.org/jira/browse/SPARK-12061
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 1.6.0
>            Reporter: Xiao Li
>
> So far, the existing caching mechanisms do not work on dataset operations when using
map/filter with lambda functions. For example, 
> [code]
>   test("persist and then map/filter with lambda functions") {
>     val f = (i: Int) => i + 1
>     val ds = Seq(1, 2, 3).toDS()
>     val mapped = ds.map(f)
>     mapped.cache()
>     val mapped2 = ds.map(f)
>     assertCached(mapped2)
>   }
> [code]



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org


Mime
View raw message