Pig reading hive columnar rc tables
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Key: PIG-1117
URL: https://issues.apache.org/jira/browse/PIG-1117
Project: Pig
Issue Type: New Feature
Reporter: Gerrit Jansen van Vuuren
I've coded a LoadFunc implementation that can read from Hive Columnar RC
tables, this is needed for a project that I'm working on because all our data
is stored using the Hive thrift serialized Columnar RC format. I have looked at
the piggy bank but did not find any implementation that could do this. We've
been running it on our cluster for the last week and have worked out most bugs.
There are still some improvements to be done but I would need like setting the
amount of mappers based on date partitioning. Its been optimized so as to read
only specific columns and can churn through a data set almost 8 times faster
with this improvement because not all column data is read.
I would like to contribute the class to the piggybank can you guide me in what
I need to do?
I've used hive specific classes to implement this, is it possible to add this
to the piggy bank build ivy for automatic download of the dependencies?
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