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From reveen joe <impdocs2...@gmail.com>
Subject Re: Compare Query Execution duration between ORC and SequenceFile
Date Wed, 11 Nov 2015 05:13:56 GMT
> Hi,
>
> I understand that data retrieval against an ORC table can be much faster
> than a SequenceFile table when a *subset of columns* are selected.
>
> I am assuming Query Execution duration would be faster even when *all the
> columns* in a given a partition are selected but not very sure about
> this.
>
> Would you clarify if you have experimented projecting all the columns in a
> given partition from an ORC file and how did it compare against
> SequenceFile table?
>
> Thank you!
>

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