CREATE TABLE table_10979 ("Name" TEXT, "Street address in Detroit" TEXT, "Years as tallest" TEXT, "Height feet / m" TEXT, "Floors" FLOAT)

What is the sum of Floors at st. joseph church?
SELECT SUM("Floors") FROM table_10979 WHERE "Name" = 'st. joseph church'
SELECT SUM("Floors") FROM "table_10979" WHERE "Name" = 'st. joseph church'