CREATE TABLE table_64156 ("Year" FLOAT, "Tournament" TEXT, "Venue" TEXT, "Result" TEXT, "Event" TEXT, "Points" TEXT)

What event has european championships as the tournament, with 2006 as the year?
SELECT "Event" FROM table_64156 WHERE "Tournament" = 'european championships' AND "Year" = '2006'
SELECT "Event" FROM "table_64156" WHERE "Tournament" = 'european championships' AND "Year" = '2006'