Hi @Tommy_Fiacco - welcome to the community!
Try adjusting your initial SQL to be like this:
AND TO_TIMESTAMP(tickets.created_at, 'YYYY-MM-DD"T"HH24:MI:SS"Z"')::date >= {{ dateRange1.value.start }}
In this query, TO_TIMESTAMP function is used to convert the created_at string to a timestamp with the specified format. Then, the ::date operator is used to extract the date part from the timestamp.
Let me know if that works for you