Grokbase Groups Pig user January 2010
FAQ
Ramana,

Actually, there's no binary type in Pig. If you do not specify the type in
load statement, the default type is byte array. I'm afraid you have to
write a UDF to do the binary comparison. In the UDF, you should first
convert the byte array to binary and then compare the two binaries.



On Wed, Jan 27, 2010 at 11:38 PM, Ramana Venkata wrote:

Hi
I want to create UDF which compares a tuple with a string value like this.

public class IsEqual extends FilterFunc {
public Boolean exec(Tuple input,String str) throws IOException {
// binary compary of AND is performed here;
// if result of AND is not zero it will return true;
return true;
}


is it possible with pig UDF ??;

Actually i want to compare two binary type data with AND operation as
fallows

Table data is

ramana 1010101
krishna 1000010
venkata 1101010
......
load 'data' as name,category using PigStorate("\t");
cameusers = filter data by IsEqual(category,"1000010");
store cameusers;
-----------------------------------
result i am expected is ...............
krishna 1000010


Is there any other solution for this operation without UDF? can we
compare category column with binary data?


Please give responce..


thanks
ramanaiah


--
Best Regards

Jeff Zhang

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