user: Question: How many days are associated with production code 210?
Columns: ['No. in series', 'No. in season', 'Title', 'Directed by', 'Written by', 'Original airdate', 'Production code']
Types: ['real', 'real', 'text', 'text', 'text', 'text', 'real']
Sample row: [14.0, 1.0, '"Darkstar Rising"', 'Dan Riba', 'Dwayne McDuffie', 'October10,2008', 201.0]
SQL:

assistant: SELECT COUNT("Original airdate") FROM "Table" WHERE "Production code" = 210.0;