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From Mike Carey <>
Subject Re: Modified/Custom plan: Push-down SELECT for external source.
Date Sat, 27 Aug 2016 20:37:12 GMT
It would be INCREDIBLY helpful be able to do this (also for internal 
sources) - e.g., even our basic index access operators could optionally 
accept a filter to apply to the records they'd otherwise simply return.  
This could especially useful when combined with limit pushdown, I would 
think, too.

On 8/26/16 3:44 PM, Wail Alkowaileet wrote:
> Hi AsterixDBers.
> Is there any easy way to push-down filter to an external source (in my case
> Parquet) without being too intrusive ?
> This can perform way faster than STREAM-SELECT, as parquet can potentially
> skip Row Groups while scanning.

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