Re:??????flink sql count????

[Michael Ran]

??count ???????????????? ????????????   ?? ???? having xxx  ,????????filter
?? 2020-09-27 17:01:06??"zya" <z_yu...@foxmail.com> ??????
>??????????????????????????????????????sum??????????????????????mysql??????????????
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>????????:&nbsp;2020??9??27??(??????) ????4:59
>??????:&nbsp;"user-zh"<user-zh@flink.apache.org&gt;;
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>????:&nbsp;Re:flink sql count????
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>??????null ????0??&nbsp; ??????&nbsp;&nbsp; sum(if(name like '????%',1 , 0))
>?? 2020-09-27 16:53:56??"zya" <z_yu...@foxmail.com&gt; ??????
>&gt;??????????
>&gt;????????sql????????????count????count????????????????????count????????????????
>&gt;??????hive??????????????count(if(name like '????%',1 , null))??????flink 
>sql??count??????null????????????????????????????????
>&gt;????????flink1.10.1 blink
>&gt;&amp;nbsp;