That's what I'm doing right now.
I'm implementing UDF1 for the now() UDF and in the UDF registration I'm
registering UDFs with zero parameters as a UDF1s.
For the above example, although I add the now() UDF as is, since it's
registered as an UDF1, I need to provide an empty parameter in the query
such as timestamp < now(' ') or it won't work.
On Wed, Jul 29, 2015 at 11:46 AM, Reynold Xin <r...@databricks.com> wrote:
> We should add UDF0 to it.
>
> For now, can you just create an one-arg UDF and don't use the argument?
>
>
> On Tue, Jul 28, 2015 at 10:59 PM, Sachith Withana <swsach...@gmail.com>
> wrote:
>
>> Hi Reynold,
>>
>> I'm implementing the interfaces given here (
>> https://github.com/apache/spark/tree/master/sql/core/src/main/java/org/apache/spark/sql/api/java
>> ).
>> But currently there is no UDF0 adapter.
>>
>> Any suggestions? I'm new to Spark and any help would be appreciated.
>>
>> --
>> Thanks,
>> Sachith Withana
>>
>> On Tue, Jul 28, 2015 at 10:18 PM, Reynold Xin <r...@databricks.com>
>> wrote:
>>
>>> I think we do support 0 arg UDFs:
>>> https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/functions.scala#L2165
>>>
>>> How are you using UDFs?
>>>
>>>
>>> On Tue, Jul 28, 2015 at 2:15 AM, Sachith Withana <swsach...@gmail.com>
>>> wrote:
>>>
>>>> Hi all,
>>>>
>>>> Currently I need to support custom UDFs with sparkSQL queries which
>>>> have no parameters.
>>>>
>>>> ex: now() : which returns the current time in milliseconds.
>>>>
>>>> Spark currently have support for UDFs having 1 or more parameters but
>>>> does not contain a UDF0 Adaptor. Is there a way to implement this?
>>>>
>>>> Or is there a way to support custom keywords such as "now" which would
>>>> act as an custom UDF with no parameters.
>>>>
>>>>
>>>> --
>>>> Thanks,
>>>> Sachith Withana
>>>>
>>>>
>>>
>>
>>
>>
>>
>
--
Sachith Withana
Software Engineer; WSO2 Inc.; http://wso2.com
E-mail: sachith AT wso2.com
M: +94715518127
Linked-In: <http://goog_416592669>https://lk.linkedin.com/in/sachithwithana
