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From fhueske <...@git.apache.org>
Subject [GitHub] flink pull request #4183: [FLINK-6969][table]Add support for deferred comput...
Date Tue, 27 Jun 2017 16:20:14 GMT
Github user fhueske commented on a diff in the pull request:

    https://github.com/apache/flink/pull/4183#discussion_r124298519
  
    --- Diff: flink-libraries/flink-table/src/main/scala/org/apache/flink/table/api/queryConfig.scala
---
    @@ -37,6 +37,14 @@ class BatchQueryConfig private[table] extends QueryConfig
     class StreamQueryConfig private[table] extends QueryConfig {
     
       /**
    +    * The deferredComputationTime is a strategy config of deferred computation that used
to deal
    +    * with late arriving data. For example, instead of computing a tumbling window of
1 hour at each
    +    * full hour, we can add a deferred computation interval of 15 minute to compute the
result
    +    * quarter past each full hour.
    +    */
    +  private var deferredComputationTime: Long = 0L
    --- End diff --
    
    Should we call this parameter rather `firstResultTimeOffset`? This would allow us to also
use it to configure early results later. The value would be an offset from the original computation
time. A positive value (> 0) would mean deferred computation (later than usual) and a negative
value (<0) would mean an early computation / early result.


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