CREATE TABLE table_55879 ("Home team" CLOB, "Home team score" CLOB, "Away team" CLOB, "Away team score" CLOB, "Venue" CLOB, "Crowd" FLOAT, "Date" CLOB)

What date is the crowd larger than 20,000?
SELECT "Date" FROM table_55879 WHERE "Crowd" > '20,000'
SELECT "Date" FROM "table_55879" WHERE "Crowd" > '20,000'