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From Matei Zaharia <>
Subject Re: Dropping late date in Structured Streaming
Date Sun, 07 Aug 2016 01:55:12 GMT
Yes, a built-in mechanism is planned in future releases. You can also drop it using a filter
for now but the stateful operators will still keep state for old windows.


> On Aug 6, 2016, at 9:40 AM, Amit Sela <> wrote:
> I've noticed that when using Structured Streaming with event-time windows (fixed/sliding),
all windows are retained. This is clearly how "late" data is handled, but I was wondering
if there is some pruning mechanism that I might have missed ? or is this planned in future
releases ?
> Thanks,
> Amit

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