CREATE TABLE table_57070 ("Grand Prix" TEXT, "Date" TEXT, "Location" TEXT, "Pole Position" TEXT, "Fastest Lap" TEXT, "Winning Driver" TEXT, "Constructor" TEXT, "Report" TEXT)

Who had the pole position in Jerez?
SELECT "Pole Position" FROM table_57070 WHERE "Location" = 'jerez'
SELECT "Pole Position" FROM "table_57070" WHERE "Location" = 'jerez'