user: Question: which number lists the production code as 2J5809
Columns: ['No.', 'Title', 'Directed by', 'Written by', 'Original air date', 'Production code', 'U.S. viewers (million)']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, '"Pilot"', 'James Burrows', 'Shana Goldberg-Meehan', 'September22,2010', '296777', '7.97']
SQL:

assistant: SELECT "No." FROM "Table" WHERE "Production code" = '2J5809';