What day was the grand prix in jerez?
CREATE TABLE table_1139087_2 (date VARCHAR, location VARCHAR)
SELECT date FROM table_1139087_2 WHERE location = "Jerez"
### Context: CREATE TABLE table_1139087_2 (date VARCHAR, location VARCHAR) ### Question: What day was the grand prix in jerez? ### Answer: SELECT date FROM table_1139087_2 WHERE location = "Jerez"