????????????window??reduceFunction??????RichFunction??

Thu, 28 Jan 2021 19:36:04 -0800 

flink????????????RichReduceFunction??




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??????:                                                                         
                                               "user-zh"                        
                                                            
<hinobl...@gmail.com&gt;;
????????:&nbsp;2021??1??28??(??????) ????8:26
??????:&nbsp;"user-zh"<user-zh@flink.apache.org&gt;;

????:&nbsp;??????window??reduceFunction??????RichFunction??



??????title??????????Flink??API????????????RichReduceFunction??????????????????windowFunction????processWindowFuntion??
??????windowFunc??reduceFunc??????????????windowFunc??????????????????reduce??????????????????
??????????????????????????record????????????????????????????????????????reduce??????????????windowFunc??????????????????????????????????key????????????????????????????????????????????

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