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Re: ignoring null entries - Pig - [mail # user]
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...Hi Jamal, you can use filter by not null . A = LOAD 'data_1' USING PigStorage(',') as (id1:chararray,value1:chararray); B = FILTER A by id1 is ...
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Author: Harsha,
2013-03-29, 20:46
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Re: Mapping nested json objects to map data type - Pig - [mail # user]
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...Hi Kiran, Can you take a look at pig scripts under here https://github.com/mozilla-metrics/telemetry-toolbox/tree/master/src/main/pig All of them uses those ...
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Author: Harsha,
2013-03-14, 06:51
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Re: Mapping nested json objects to map data type - Pig - [mail # user]
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...Hi Kiran, If you are ok with using java for udfs take a look at this https://github.com/mozilla-metrics/akela/tree/master/src/main/java/com/mozilla/pig/eval/json &...
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Author: Harsha,
2013-03-14, 03:54
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Re: Pig Regex Help - Pig - [mail # user]
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...Hi John, I ran these in pig 0.9.2 A = LOAD 'data' as line:chararray; B = FOREACH A GENERATE FLATTEN(REGEX_EXTRACT_ALL(line, '^(....
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Author: Harsha,
2013-03-10, 03:39
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Re: Tuples in UDF and null - Pig - [mail # user]
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...Mohit, A = LOAD '/user/apuser/test/data1' AS b:bag{ you are naming your data bag as b. if you want to refer values inside the data bag try b.a or b.b. The sample data I gave you...
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Author: Harsha,
2013-03-07, 20:11
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Re: Tuples in UDF and null - Pig - [mail # user]
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...It will be easier if you have some sample data and run it through grunt shell. Lets say you have a dataset like this ({(1,)}) ({(3,)}) ({(5,10)}) ({(7,)}) some of them are nulls ...
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Author: Harsha,
2013-03-07, 19:27
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Re: Tuples in UDF and null - Pig - [mail # user]
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...from your schema b:bag{t:tuple(a:chararray, b:chararray)} your tuple is inside a bag so on the next line if you are trying to access through $1 pig will throw up an error saying non-existent...
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Author: Harsha,
2013-03-07, 18:53
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Re: Tuples in UDF and null - Pig - [mail # user]
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...Hi Mohit, it won't convert into string literal 'NULL' since its a tuple you'll see results like ('Hello',) Harsha On Thursday, March 7,...
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Author: Harsha,
2013-03-07, 18:31
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Re: FLATTEN is not working - Pig - [mail # user]
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...I can think off doing some thing on these lines but there might be a better way. Z = foreach Y generate id, TOTUPLE(split_qc.$0,split_qt.$0,split_qe.$0),TOTUPLE(split_qc.$1,split_qt.$...
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Author: Harsha,
2013-03-07, 02:00
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Re: FLATTEN is not working - Pig - [mail # user]
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...Hi Mix, You are doing a TOBAG on a tuple which will put it as {((11,22,33))}. flatten the tuple before doing the TOBAG. Z = foreach Y GENERATE i...
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Author: Harsha,
2013-03-07, 01:29
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