[GitHub] spark issue #16578: [SPARK-4502][SQL] Parquet nested column pruning

[jpiper <gi...@git.apache.org>]

Github user jpiper commented on the issue:

    https://github.com/apache/spark/pull/16578
  
    I've just tested this patch and in my use case I've gone from 2 mins down to about 6 seconds - absolutely fantastic, great work!
    
    Given the benefits of storing data in nested/complex schema compared to a giant flat schema, this is a massive boon. I'm hoping someone can give this the nudge it needs to make it to mainline :) @cloud-fan @ericl @liancheng @rxin


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