When is the French Open when serena williams is the player?
CREATE TABLE table_197638_7 (french_open INTEGER, player VARCHAR)
SELECT MIN(french_open) FROM table_197638_7 WHERE player = "Serena Williams"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_197638_7 (french_open INTEGER, player VARCHAR) Question: When is the French Open when serena williams is the player? [/INST] SELECT MIN(french_open) FROM table_197638_7 WHERE player = "Serena Williams" </s>