CREATE TABLE table_58338 ("Date" CLOB, "Visitor" CLOB, "Score" CLOB, "Home" CLOB, "Decision" CLOB, "Attendance" FLOAT, "Record" CLOB)

What was the date of the game with a decision of Lehtonen and attended by more than 17,731 people?
SELECT "Date" FROM table_58338 WHERE "Decision" = 'lehtonen' AND "Attendance" > '17,731'
SELECT "Date" FROM "table_58338" WHERE "Attendance" > '17,731' AND "Decision" = 'lehtonen'