CREATE TABLE table_67080 ("Date" TEXT, "Visitor" TEXT, "Score" TEXT, "Home" TEXT, "Decision" TEXT, "Attendance" FLOAT, "Record" TEXT)

Name the least attendance with visitor of edmonton
SELECT MIN("Attendance") FROM table_67080 WHERE "Visitor" = 'edmonton'
SELECT MIN("Attendance") FROM "table_67080" WHERE "Visitor" = 'edmonton'