CREATE TABLE table_26549 ("No. in series" FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Original air date" CLOB, "Production code" FLOAT)

When 17 is the number in series who is the director?
SELECT "Directed by" FROM table_26549 WHERE "No. in series" = '17'
SELECT "Directed by" FROM "table_26549" WHERE "No. in series" = '17'