Afaik SerDe only serialzes / deserializes the value part of the sequencefile :( ?
From: madhu phatak [mailto:phatak....@gmail.com] Sent: Thursday, April 19, 2012 12:16 PM To: user@hive.apache.org Subject: Re: using the key from a SequenceFile Serde will allow you to create custom data from your sequence File https://cwiki.apache.org/confluence/display/Hive/SerDe On Thu, Apr 19, 2012 at 3:37 PM, Ruben de Vries <ruben.devr...@hyves.nl<mailto:ruben.devr...@hyves.nl>> wrote: I'm trying to migrate a part of our current hadoop jobs from normal mapreduce jobs to hive, Previously the data was stored in sequencefiles with the keys containing valueable data! However if I load the data into a table I loose that key data (or at least I can't access it with hive), I want to somehow use the key from the sequence file in hive. I know this has come up before since I can find some hints of people needing it but I can't seem to find a working solution and since I'm not very good with java I really can't get it done myself :(. Does anyone have a snippet of something like this working? I get errors like; ../hive/mapred/CustomSeqRecordReader.java:14: cannot find symbol [javac] symbol : constructor SequenceFileRecordReader() [javac] location: class org.apache.hadoop.mapred.SequenceFileRecordReader<K,V> [javac] public class CustomSeqRecordReader<K, V> extends SequenceFileRecordReader<K, V> implements RecordReader<K, V> { Hope some1 has a snippet or can help me out, would really love to be able to switch part of our jobs to hive, Ruben de Vries -- https://github.com/zinnia-phatak-dev/Nectar
