> 2011/5/24 Daniel Dai
>>>
>>> GetKey(m) already get the key, so you can filter the key. For value, you
>>>> may need to put into UDF.
>>>>
>>>> Grammar support for map is based on static key, eg: m#'key1'. Your use
>>>> case
>
can filter the key. For value, you
>>>> may need to put into UDF.
>>>>
>>>> Grammar support for map is based on static key, eg: m#'key1'. Your use
>>>> case
>>>> is mostly dealing dynamic keys, which you may rely on yourself currently
m#'key1'. Your use
>>> case
>>> is mostly dealing dynamic keys, which you may rely on yourself currently.
>>>
>>> Daniel
>>>
>>> -Original Message- From: Jameson Li
>>> Sent: Monday, May 23, 2011 7:07 PM
>>>
. Your
use case
is mostly dealing dynamic keys, which you may rely on yourself
currently.
Daniel
-Original Message- From: Jameson Li
Sent: Monday, May 23, 2011 7:07 PM
To: Daniel Dai
Cc: user@pig.apache.org
Subject: Re: how to operate a map type
And how to filter a map key or a map val
y 23, 2011 7:07 PM
> To: Daniel Dai
> Cc: user@pig.apache.org
> Subject: Re: how to operate a map type
>
>
> And how to filter a map key or a map value? And also only UDF?
>
> b = foreach ruls generate com.company.pig.GetURLContent($0,3,0.1) as m;
> c = filter b by m.key ==
From: Jameson Li
Sent: Monday, May 23, 2011 7:07 PM
To: Daniel Dai
Cc: user@pig.apache.org
Subject: Re: how to operate a map type
And how to filter a map key or a map value? And also only UDF?
b = foreach ruls generate com.company.pig.GetURLContent($0,3,0.1) as m;
c = filter b by m.key =
And how to filter a map key or a map value? And also only UDF?
b = foreach ruls generate com.company.pig.GetURLContent($0,3,0.1) as m;
c = filter b by m.key == 'aaa' or m.value> 0.2;
How could I write the code?
Any other way without writing UDF?
And I have a doubt since only writing UDF can oper
I cannot think of a way without writing UDF. You can write two UDF:
* GetKey, input a map, output the key of the map
* GetValues, input a bag of map, output a bag of map values
The script is like:
b = foreach ruls generate com.company.pig.GetURLContent($0,3,0.1) as m;
c = foreach b generate GetKe
Hi all,
I have the below pig code:
register /home/uu/project/lib/pigudfs.jar
ruls = load 'testurl' as (url:chararray);
b = foreach ruls generate com.company.pig.GetURLContent($0,3,0.1);
here when dump b, it will return:
([4#0.1677963])
([193#0.16985779,81#0.10994483])
([418#0.14138427,9#0.11075
