哈希匹配（聚合）->迁移到Azure后流聚合性能问题

Question

将数据库从本地服务器迁移到Azure后，查询出现性能问题，您可以在下面找到。

Azure的实际执行计划是： https://ufile.io/o0z6ve6q

Onprem的实际执行计划是： https://ufile.io/9kj3nc7d

Azure附带了Stream Aggregate，它需要对数据进行排序，因此在Stream Aggregate之前使用Sort。

有什么方法可以轻松解决此问题而无需重建查询本身？

以前的实例是SQL Server 2008，而azure是2016。

选择

        [CommunicationId]

        , CASE WHEN [SurveyPageName] like '%dystrybucja%' OR [SurveyPageName] LIKE '%pytania dodatkowe%' THEN [SurveyPageName] ELSE 
          ISNULL(LTRIM(RIGHT([SurveyPageName], LEN([SurveyPageName]) - CHARINDEX('-', [SurveyPageName]))),'')
          END
                +CASE WHEN [SurveyLineName] = 'Material range - Flexible Questions' THEN ''
                  WHEN [SurveyLineName] = 'Materials in catalogue - Products' THEN ''
                  WHEN [SurveyLineName] LIKE 'Zakres produktów%' THEN ''
                   ELSE '.'+ISNULL([SurveyLineName],'')
                  END
                  +CASE WHEN SurveyQuestion='ANS Y/N' THEN ''
                    ELSE '.'+ISNULL(SurveyQuestion,'.')
                    END
                  +CASE WHEN fac.SurveyProductId IS NULL THEN ''
                        WHEN SurveyProductName IS NULL THEN ''
                        WHEN SurveyProductName = SurveyLineName THEN ''
                        ELSE '.'+SurveyProductName
                     END AS [Question]

        ,MAX(CASE WHEN SurveyQuestion='Lost Since Last Visit' AND ISNULL([AnswerValue],[AnswerText]) < 0 THEN 0 
                  ELSE ISNULL([AnswerValue],[AnswerText])
                  END) AS Answer


      FROM FactSurvey fac with (nolock)
      LEFT JOIN DimSurvey dim with (nolock) ON dim.[DimSurveyKey] = fac.[DimSurveyKey]
      WHERE dim.IsText = 0
      AND [SurveyPageName] NOT LIKE 'Wagi produktów%'
      AND dim.SurveyQuestion NOT like '%RA'
      AND [SurveyPageName] NOT LIKE 'Territory_KPI_Calculation'
      AND [SurveyQuestion] NOT LIKE N'Szerokosc produktów%'
      AND [SurveyQuestion] NOT LIKE N'Szer.%miej.%ekspo%'
      AND [SurveyQuestion] NOT LIKE N'Weight'
      AND [SurveyQuestion] NOT LIKE N'Only%for%'
      AND [SurveyPageName] NOT LIKE N'KPI%'
      AND ([SurveyPageName] NOT LIKE N'Report_Perfect Store%' 
        OR ([SurveyPageName]+[SurveyQuestion] LIKE  N'Report_Perfect Store%' + N'%[%]%'
        OR [SurveyPageName]+[SurveyQuestion] LIKE  N'Report_Perfect Store%' + N'%decimal%'))
      GROUP BY [CommunicationId]
                      ,CASE WHEN [SurveyPageName] like '%dystrybucja%' OR [SurveyPageName] LIKE '%pytania dodatkowe%' THEN [SurveyPageName] ELSE 
                      ISNULL(LTRIM(RIGHT([SurveyPageName], LEN([SurveyPageName]) - CHARINDEX('-', [SurveyPageName]))),'')
                      END
                  +CASE WHEN [SurveyLineName] = 'Material range - Flexible Questions' THEN ''
                  WHEN [SurveyLineName] = 'Materials in catalogue - Products' THEN ''
                  WHEN [SurveyLineName] LIKE 'Zakres produktów%' THEN ''
                   ELSE '.'+ISNULL([SurveyLineName],'')
                  END
                  +CASE WHEN SurveyQuestion='ANS Y/N' THEN ''
                    ELSE '.'+ISNULL(SurveyQuestion,'.')
                    END
                  +CASE WHEN fac.SurveyProductId IS NULL THEN ''
                        WHEN SurveyProductName IS NULL THEN ''
                        WHEN SurveyProductName = SurveyLineName THEN ''
                        ELSE '.'+SurveyProductName
                     END