Can you confirm if this are the steps being followed:

• Create the SQL Task: Ensure your SQL task is correctly set up and produces the desired output. For example:

  SELECT customer_name, market FROM example_customers;

• Reference the SQL Task Output in ForEach Task:

  • Use the correct syntax to reference the rows output. The expression should be in the format {{ tasks.sqlTaskName.output.rows }}.
  • Ensure that the SQL task name (sqlTaskName) matches the task key you have defined in your workflow.

• Configure the ForEach Task:

  • Set the inputs field of the ForEach task to {{ tasks.sqlTaskName.output.rows }}.
  • Define the nested task within the ForEach task to process each row. For example:

    {
      "task_key": "process_customers_iteration",
      "parameters": {
        "customer_name": "{{ input.customer_name }}",
        "market": "{{ input.market }}"
      },
      "sql_task": {
        "file": {
          "path": "/path/to/your/sql/file.sql"
        }
      }
    }