user: ### NOW ANSWER:
Question: What is the original air date of the episode with the production code 1115? 
Columns: ['No. in series', 'Title', 'Directed by', 'Written by', 'Original air date', 'Production code']
Types: ['real', 'text', 'text', 'text', 'text', 'real']
Sample row: [1.0, '"Pilot"', 'Rick Wallace', 'Steven Bochco & David E. Kelley', 'September 19, 1989', 1101.0]
SQL:

assistant: SELECT "Original air date" FROM "Table" WHERE "Production code" = 1115.0;