CREATE TABLE table_22595 ("No. in series" FLOAT, "No. in season" FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Original air date" CLOB, "Production code" CLOB)

What is the production code for episode 6 in the season?
SELECT "Production code" FROM table_22595 WHERE "No. in season" = '6'
SELECT "Production code" FROM "table_22595" WHERE "No. in season" = '6'