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From bowenli86 <...@git.apache.org>
Subject [GitHub] flink issue #4963: [FLINK-7475] [core][DataStream API] support update() in L...
Date Sat, 11 Nov 2017 23:18:08 GMT
Github user bowenli86 commented on the issue:

    https://github.com/apache/flink/pull/4963
  
    Hi @yunfan123  Thanks for the feedback, and I agree with you.
    
    Well, here's the problem: Flink seems to be using the StringAppendTestOperator as merge
operator from RocksDB, which added a ',' between values. But I didn't find how a java class
for StringAppendTestOperator. 
    
    Shall we mimic StringAppendTestOperator and concatenate the values with ',' ourselves?
Do you have any more suggestions?


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