pig-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Alan Gates <alanfga...@gmail.com>
Subject Re: Using Hive UDF in pig
Date Wed, 13 Apr 2016 14:52:13 GMT
Pig does not have access to Hive’s metastore to locate default functions, so you will have
to use the full class name.

Alan.

> On Apr 13, 2016, at 01:51, Siddhi Mehta <sm26217@gmail.com> wrote:
> 
> Hey Guys,
> 
> I have created a custom Hive UDF and have registered it as a permanent
> function using
> 
> CREATE FUNCTION myfunc AS 'com.package.mycustomfunc' USING JAR
> 'applog-udf.jar', FILE 'distributedcachedir;
> 
> 
> I want to make use of the same hive udf in pig as per jira PIG-3294
> <https://issues.apache.org/jira/browse/PIG-3294>.
> 
> 
> I am able to successfully use the udf if I define it using the full class
> name
> 
> define myfunc HiveUDF('com.package.mycustomfunc');
> 
> 
> My assumption was that custom UDF's can also be defined using the
> functionName/alias rather than the classname.
> 
> 
> When I try to do the same I keep getting errors since it cannot resolve the
> udf name using builtins
> 
> 
> define myfunc HiveUDF('default.myfunc');
> 
> 
> Is this assumption correct or do custom hive udf's need to be referenced
> via their full class name
> 
> --Siddhi


Mime
View raw message