datafu-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Russell Jurney (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DATAFU-69) Create SelectFieldByName UDF - which, given a field who's value contains a field name, and *, returns the value of the field referenced by the field name
Date Tue, 28 Oct 2014 19:28:34 GMT

     [ https://issues.apache.org/jira/browse/DATAFU-69?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Russell Jurney updated DATAFU-69:
---------------------------------
    Attachment: DATAFU-69.patch

Latest patch with name changed to SelectStringFieldByName

> Create SelectFieldByName UDF - which, given a field who's value contains a field name,
and *, returns the value of the field referenced by the field name
> ---------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DATAFU-69
>                 URL: https://issues.apache.org/jira/browse/DATAFU-69
>             Project: DataFu
>          Issue Type: Bug
>    Affects Versions: 1.3.0
>            Reporter: Russell Jurney
>              Labels: features
>         Attachments: DATAFU-69.patch, DATAFU-69.patch, DATAFU-69.patch
>
>
> define SelectFieldByName datafu.pig.util.SelectFieldByName();
> data = LOAD 'input' using PigStorage(',') AS (fieldName:chararray, text1:chararray, text2:chararray,
text3:chararray);
> data2 = FOREACH data GENERATE fieldName, SelectFieldByName(fieldName,*) as result;
> data3 = FOREACH data2 GENERATE fieldName, result;
> STORE data3 INTO 'output';



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message