[GitHub] spark issue #22078: [SPARK-25085][SQL] Insert overwrite a non-partitioned ta...

[wangyum]

Github user wangyum commented on the issue:

    https://github.com/apache/spark/pull/22078
  
    
    Number files | Delete directory elapsed time(milliseconds) | Truncate 
directory elapsed   time(milliseconds)
    -- | -- | --
    200 | 7 | 319
    5000 | 48 | 7810
    10000 | 90 | 16427
    100000 | 736 | 194470
    



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