[GitHub] [incubator-druid] alex601049502 opened a new issue #8985: extension-contrib distinctCount function calc result is wrong #BUG

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alex601049502 opened a new issue #8985: extension-contrib distinctCount function calc result is wrong #BUG
URL: https://github.com/apache/incubator-druid/issues/8985
 
 
   Druid Version：0.12.3
   I used distinctCount as aggregations‘s type,when dimension and aggregation contain the same fields, the result is wrong.
   Following is my request json,
   `{
     "queryType": "groupBy",
     "dataSource": "oms-order-product-detail",
     "dimensions": [
       "warehouse_name",
       "order_no"
     ],
     "aggregations": [
       {
         "fieldName": "order_no",
         "fieldNames": [
           "order_no"
         ],
         "type": "distinctCount",
         "name": "COUNT_DISTINCT(order_no)"
       }
     ],
     "granularity": "all",
     "postAggregations": [],
     "intervals": "1901-01-01T00:00:00+08:05:43/2101-01-01T00:00:00+08:00",
     "filter": {
       "type": "selector",
       "dimension": "order_date",
       "value": "2019-09-10"
     },
     "limitSpec": {
       "type": "default",
       "limit": 10000,
       "columns": [
         {
           "dimension": "COUNT_DISTINCT(order_no)",
           "direction": "descending"
         }
       ]
     }
   }`
   

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