How to use script arguments in AWS DataPipeline SQLActivity?

Question

I am trying to execute an unload command on Redshift via Data Pipeline. The script looks something like:

unload ($$ SELECT *, count(*) FROM (SELECT APP_ID, CAST(record_date AS DATE) WHERE len(APP_ID)>0 AND CAST(record_date as DATE)=$1) GROUP BY APP_ID $$) to 's3://test/unload/' iam_role 'arn:aws:iam::xxxxxxxxxxx:role/Test' delimiter ',' addquotes;

The pipeline looks something like this:

{
"objects": [
{
"role": "DataPipelineDefaultRole",
"subject": "SuccessNotification",
"name": "SNS",
"id": "ActionId_xxxxx”,
"message": "SUCCESS: #{format(minusDays(node.@scheduledStartTime,1),'MM-dd-YYYY')}",
"type": "SnsAlarm",
"topicArn": "arn:aws:sns:us-west-2:xxxxxxxxxx:notification"
},
{
"connectionString": “connection-url”,
"password": “password”,
"name": “Test”,
"id": "DatabaseId_xxxxx”,
"type": "RedshiftDatabase",
"username": “username”
},
{
"subnetId": "subnet-xxxxxx”,
"resourceRole": "DataPipelineDefaultResourceRole",
"role": "DataPipelineDefaultRole",
"name": "EC2",
"id": "ResourceId_xxxxx”,
"type": "Ec2Resource"
},
{
"failureAndRerunMode": "CASCADE",
"resourceRole": "DataPipelineDefaultResourceRole",
"role": "DataPipelineDefaultRole",
"pipelineLogUri": "s3://test/logs/",
"scheduleType": "ONDEMAND",
"name": "Default",
"id": "Default"
},
{
"database": {
"ref": "DatabaseId_xxxxxx”
},
"scriptUri": "s3://test/script.sql",
"name": "SqlActivity",
"scriptArgument": "#{format(minusDays(node.@scheduledStartTime,1),"MM-dd-YYYY”)}”,
"id": "SqlActivityId_xxxxx”,
"runsOn": {
"ref": "ResourceId_xxxx”
},
"type": "SqlActivity",
"onSuccess": {
"ref": "ActionId_xxxxx”
}
}
],
"parameters": []
}

However, I keep getting the error: The column index is out of range: 1, number of columns: 0.

I just can't get it to work. I have tried using ?, $1 and I even tried putting the expression #{format(minusDays(node.@scheduledStartTime,1),"MM-dd-YYYY”)} directly in the script. None of them works.

I have looked at the answers to Amazon Data Pipline: How to use a script argument in a SqlActivity? but none of them are helpful.

Does anyone has idea how to use script argument in SQL Script in AWS Data Pipeline?