Invoke-ASCmd XMLA Results to storage results in Azure Data Lake with either .csv or .txt format - azure-powershell

Question

I've built an Azure Powershell runbook (5.0) to run a MDX query against a SSAS server , the query is just to get the partition names
SELECT
[Name]
FROM $SYSTEM.TMSCHEMA_PARTITIONS
WHERE [Name] <>'Partition'
If I run it in SSMS I get the desired results
The problem comes when I run the query using the powershell runbook because the results are basically an XMLA output
What I need is the Azure powershell runbook to extract just that column from the $Results variable and then create either a .txt file or .csv in the Azure data lake storage V2 with that data ( like the SSMS). That file will be consumed later by Data Factory.
This is the full script:
Param
(
[Parameter (Mandatory= $true)]
[String] $Query,
[Parameter (Mandatory= $true)]
[String] $OperationType,
[Parameter (Mandatory= $true)]
[String] $ServerName,
[Parameter (Mandatory= $true)]
[String] $DatabaseName,
[Parameter (Mandatory= $true)]
[String] $SecretName
)
$cred = Get-AutomationPSCredential -Name $SecretName
$Results = Invoke-ASCmd -Server $ServerName -Database $DatabaseName -Credential $cred -Query $Query
Write-Output $Results

Answer 1

I have reproduced in my environment and got expected results as below:
SSMS:
SELECT [Name] FROM $SYSTEM.TMSCHEMA_PARTITIONS
NOTE:
Your $Results is taking the output as string, you should be converting it to Xml using [XML] in PowerShell script.
Then use below code instead of your code :
$Results = [XML] (Invoke-ASCmd -Server $ServerName -Database $DatabaseName -Credential $cred -Query $Query)
Now use below code:
Write-Output $Results.return.root.row.Name
Output:
You need to incorporate the above 2 codes into your code.After that you need to send the output to your requirement.