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 table_22517564_3 (jockey VARCHAR, trainer VARCHAR)
### Question:
HOw many jockeys had eoin harty as a trainer
### Answer:
SELECT COUNT(jockey) FROM table_22517564_3 WHERE trainer = "Eoin Harty"