What are the ids for transactions that have an amount greater than the average amount of a transaction?
SELECT transaction_id FROM Financial_transactions WHERE transaction_amount  >  (SELECT avg(transaction_amount) FROM Financial_transactions)
SELECT transaction_id FROM Financial_transactions WHERE transaction_amount  >  (SELECT avg(transaction_amount) FROM Financial_transactions)
[{'transaction_id': 3}, {'transaction_id': 6}, {'transaction_id': 7}, {'transaction_id': 8}, {'transaction_id': 9}, {'transaction_id': 10}, {'transaction_id': 11}, {'transaction_id': 12}, {'transaction_id': 14}, {'transaction_id': 15}]