Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE Financial_transactions (transaction_id VARCHAR, transaction_amount INTEGER)
### Question:
Show ids for all transactions whose amounts are greater than the average.
### Answer:
SELECT transaction_id FROM Financial_transactions WHERE transaction_amount > (SELECT AVG(transaction_amount) FROM Financial_transactions)