user: Question: Who directed the episode with production code IP01003? 
Columns: ['No. in series', 'Title', 'Directed by', 'Written by', 'Original air date', 'Production code']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, '" The Gang Gets Racist "', 'John Fortenberry', 'Charlie Day & Rob McElhenney', 'August4,2005', 'IP01001']
SQL:

assistant: SELECT "Directed by" FROM "Table" WHERE "Production code" = 'IP01003';