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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2016/06/23 07:06:16 UTC

[jira] [Assigned] (SPARK-16163) Statistics of logical plan is super slow on large query

     [ https://issues.apache.org/jira/browse/SPARK-16163?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-16163:
------------------------------------

    Assignee:     (was: Apache Spark)

> Statistics of logical plan is super slow on large query
> -------------------------------------------------------
>
>                 Key: SPARK-16163
>                 URL: https://issues.apache.org/jira/browse/SPARK-16163
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.0.0
>            Reporter: Davies Liu
>
> It took several minutes to plan TPC-DS Q64, because the canBroadcast() is super slow on large plan.
> Right now, we are considering the schema in statistics(), it's not trivial anymore, we should cache the result (using lazy val rather than def).



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