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From "Thomas Decaux (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-26214) Add "broadcast" method to DataFrame
Date Thu, 29 Nov 2018 10:06:00 GMT

     [ https://issues.apache.org/jira/browse/SPARK-26214?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Thomas Decaux updated SPARK-26214:
----------------------------------
    Description: 
As discussed at [https://stackoverflow.com/questions/43984068/does-spark-sql-autobroadcastjointhreshold-work-for-joins-using-datasets-join-op/43994022,] it's
possible to force broadcast of DataFrame, even if total size is greater than ``*spark.sql.autoBroadcastJoinThreshold``.*

But this not trivial for beginner, because there is no "broadcast" method (I know, I am lazy
...).

We could add this method, with a WARN if size is greater than the threshold.

(if it's an easy one, I could do it?)

  was:
As discussed at [https://stackoverflow.com/questions/43984068/does-spark-sql-autobroadcastjointhreshold-work-for-joins-using-datasets-join-op/43994022,] it's
possible to force broadcast of DataFrame, even if total size is greater than ``*spark.sql.autoBroadcastJoinThreshold``.*

But this not trivial for beginner, because there is no "broadcast" method (I know, I am lazy
...).

We could add this method, with a WARN if size is greater than the threshold.


> Add "broadcast" method to DataFrame
> -----------------------------------
>
>                 Key: SPARK-26214
>                 URL: https://issues.apache.org/jira/browse/SPARK-26214
>             Project: Spark
>          Issue Type: Wish
>          Components: SQL
>    Affects Versions: 2.4.0
>            Reporter: Thomas Decaux
>            Priority: Trivial
>              Labels: broadcast, dataframe
>
> As discussed at [https://stackoverflow.com/questions/43984068/does-spark-sql-autobroadcastjointhreshold-work-for-joins-using-datasets-join-op/43994022,] it's
possible to force broadcast of DataFrame, even if total size is greater than ``*spark.sql.autoBroadcastJoinThreshold``.*
> But this not trivial for beginner, because there is no "broadcast" method (I know, I
am lazy ...).
> We could add this method, with a WARN if size is greater than the threshold.
> (if it's an easy one, I could do it?)



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