I assume that query looks like
SELECT
t.transaction_category_id,
SUM(t.transaction_amount) AS sum_amount,
COUNT(DISTINCT t.user_id) AS num_users
FROM transactions t
JOIN users u USING (user_id)
WHERE t.is_blocked = False
AND u.is_active = True
GROUP BY t.transaction_category_id
ORDER BY sum_amount DESC;
Instead of is_active = 1 because in csv generation is_active is True or False
Also i assume that transaction_amount is Decimal in the transactions table instead of Integer