spark-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Jon Chase <jon.ch...@gmail.com>
Subject Re: Registering custom UDAFs with HiveConetxt in SparkSQL, how?
Date Tue, 24 Mar 2015 20:58:28 GMT
Shahab -

This should do the trick until Hao's changes are out:


sqlContext.sql("create temporary function foobar as 'com.myco.FoobarUDAF'");

sqlContext.sql("select foobar(some_column) from some_table");


This works without requiring to 'deploy' a JAR with the UDAF in it - just
make sure the UDAF is in your project's classpath.




On Tue, Mar 10, 2015 at 8:21 PM, Cheng, Hao <hao.cheng@intel.com> wrote:

>  Oh, sorry, my bad, currently Spark SQL doesn't provide the user
> interface for UDAF, but it can work seamlessly with Hive UDAF (via
> HiveContext).
>
>
>
> I am also working on the UDAF interface refactoring, after that we can
> provide the custom interface for extension.
>
>
>
> https://github.com/apache/spark/pull/3247
>
>
>
>
>
> *From:* shahab [mailto:shahab.mokari@gmail.com]
> *Sent:* Wednesday, March 11, 2015 1:44 AM
> *To:* Cheng, Hao
> *Cc:* user@spark.apache.org
> *Subject:* Re: Registering custom UDAFs with HiveConetxt in SparkSQL, how?
>
>
>
> Thanks Hao,
>
> But my question concerns UDAF (user defined aggregation function ) not
> UDTF( user defined type function ).
>
> I appreciate if you could point me to some starting point on UDAF
> development in Spark.
>
>
>
> Thanks
>
> Shahab
>
> On Tuesday, March 10, 2015, Cheng, Hao <hao.cheng@intel.com> wrote:
>
>  Currently, Spark SQL doesn't provide interface for developing the custom
> UDTF, but it can work seamless with Hive UDTF.
>
>
>
> I am working on the UDTF refactoring for Spark SQL, hopefully will provide
> an Hive independent UDTF soon after that.
>
>
>
> *From:* shahab [mailto:shahab.mokari@gmail.com]
> *Sent:* Tuesday, March 10, 2015 5:44 PM
> *To:* user@spark.apache.org
> *Subject:* Registering custom UDAFs with HiveConetxt in SparkSQL, how?
>
>
>
> Hi,
>
>
>
> I need o develop couple of UDAFs and use them in the SparkSQL. While UDFs
> can be registered as a function in HiveContext, I could not find any
> documentation of how UDAFs can be registered in the HiveContext?? so far
> what I have found is to make a JAR file, out of developed UDAF class, and
> then deploy the JAR file to SparkSQL .
>
>
>
> But is there any way to avoid deploying the jar file and register it
> programmatically?
>
>
>
>
>
> best,
>
> /Shahab
>
>

Mime
View raw message