ORC algorithm skeleton

[Amatucci, Mario, Vodafone Group]

Hello everyone,
 
Anyone got any idea about ORC algorithm skeleton? How it works?
 

RE: hive external table on gzip

[Amatucci, Mario, Vodafone Group]

Hi I have huge gzip on hdfs and |I'd like to create an external table on top of 
them
Any code example? Cheers
Ps
I cannot use snappy or lzo for some constraints

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Kind regards
Mario Amatucci
CG TB PS GDC PRAGUE THINK BIG