CREATE TABLE table_23546 ("No. in series" FLOAT, "No. in season" FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "U.S. viewers  ( million ) " CLOB, "Original air date" CLOB, "Production code" FLOAT)

What is the lowest production code
SELECT MIN("Production code") FROM table_23546
SELECT MIN("Production code") FROM "table_23546"