CREATE TABLE table_45512 ("Position" FLOAT, "Pilot" TEXT, "Glider" TEXT, "Speed" TEXT, "Distance" TEXT)

What glider did thomas gostner pilot?
SELECT "Glider" FROM table_45512 WHERE "Pilot" = 'thomas gostner'
SELECT "Glider" FROM "table_45512" WHERE "Pilot" = 'thomas gostner'