Having issue where Application Insights values are being split into seperate events

Hi All,

We are attempting to extract our Application Insights data into PowerBi for analysis. However I'm consistantly having issues whereby each element in custom dimensions is being split into seperate events when viewed in PowerBi. Below is what I have as my query:

   WITH flat AS(
   SELECT  
      A.context.data.eventtime as eventTime,
      A.context.data.isSynthetic as isSynthetic,
      A.context.device.type as deviceType,
      A.context.device.os as os,
      A.context.device.osVersion as osVersion,
      A.context.device.locale as locale,
      A.context.device.userAgent as userAgent,
      A.context.device.browser as browser,
      A.context.device.browserVersion as browserVersion,
      A.context.device.screenResolution.value as screenResolution,
      A.context.session.id as sessionId,
      A.context.session.isFirst as sessionIsFirst,
      A.context.location.clientip as clientIp,
      A.context.location.continent as continent,
      A.context.location.country as country,
      A.context.location.province as province,
      A.context.location.city as city,
      A.context.location.point.lat as latitude,
      A.context.location.point.lon as longitude,
      ClientId = flat.arrayvalue.ClientId,
      ClientName = flat.arrayvalue.Client,
      ContentId = flat.arrayvalue.ContentId,
      ContentName = flat.arrayvalue.Content,
      DomainId = flat.arrayvalue.DomainId,
      Domain = flat.arrayvalue.Domain
	  FROM [export-input] A
	  OUTER APPLY GetArrayElements(A.context.custom.dimensions) flat
	  )
	  SELECT
	  eventTime,
	  isSynthetic,
	  deviceType,
	  os,
	  osVersion,
	  locale,
	  userAgent,
	  browser,
	  browserVersion,
	  screenResolution,
	  sessionId,
	  sessionIsFirst,
	  clientIp,
	  continent,
	  country,
	  province,
	  city,
	  latitude,
	  longitude,
	  ClientId,
	  ClientName,
	  ContentId,
	  ContentName,
	  DomainId,
	  Domain
    INTO
      [pbi-output]
    FROM
      flat

And my report in PowerBi is clearly splitting up the custom dimensions (below is a basic example):

eventtime	domainid	contentid
15/06/2016 13:21		
15/06/2016 13:21	744	
15/06/2016 13:21		
15/06/2016 13:21		1452
15/06/2016 13:21	846	
15/06/2016 13:21		
15/06/2016 13:21		432
15/06/2016 13:21	509	
15/06/2016 13:21		
15/06/2016 13:21		1172
15/06/2016 13:21	728	
15/06/2016 13:22		
15/06/2016 13:22		1392
15/06/2016 13:22	207	
15/06/2016 13:22		
15/06/2016 13:22		1474

Anyone have any idea how i can get these relating dimensions to group so that i can report on specific Client IDs and Domain IDs.

I've followed the tutorial that can be found here in order to ge this far:

https://azure.microsoft.com/en-gb/documentation/articles/app-insights-export-power-bi/

Many thanks,

Jack