[GitHub] [druid] panpur opened a new issue #10570: longSum/Max aggregation in metricsSpec is ignored when setting inputSource=druid

Mon, 09 Nov 2020 21:14:20 -0800 


panpur opened a new issue #10570:
URL: https://github.com/apache/druid/issues/10570


   Tested in druid 0.20.0 with `druid.generic.useDefaultValueForNull=false`
   I have exising druid datasource:
   
![druid](https://user-images.githubusercontent.com/5415285/98630138-0d729880-234d-11eb-8078-f5e7e480aac1.png)
   
   Then I tried to aggregate using ingestion spec
   `{
       "type": "index_parallel",
       "spec": {
           "dataSchema": {
               "dimensionsSpec": {
                   "dimensions": [{
                           "name": "MONITOR_ID",
                           "type": "long"
                       }]
               },
               "metricsSpec": [{
                       "fieldName": "L3",
                       "name": "L3",
                       "type": "longSum"
                   }, {
                       "name": "CNT",
                       "type": "count"
                   }],
               "granularitySpec": {
                   "segmentGranularity": "day",
                   "queryGranularity": "hour"
               },
               "timestampSpec": {
                   "column": "POLL_TIME",
                   "format": "millis"
               },
               "dataSource": "z_3600000_0"
           },
           "ioConfig": {
               "appendToExisting": true,
               "inputSource": {
                   "interval": 
"2020-11-10T03:26:00.000Z/2020-11-10T03:31:00.000Z",
                   "type": "druid",
                   "dataSource": "z_60000_0"
               },
               "type": "index_parallel"
           }
       }
   }`
   
   The longSum result for L3 is null
   
![druid_aggr](https://user-images.githubusercontent.com/5415285/98630337-7823d400-234d-11eb-88ec-9b6aa7584a50.png)
   
   Is this a bug or am I missing something?


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