user: Question: What was the performance length of the 1999 season in Bydgoszcz, Poland?
Columns: ['Discipline', 'Season', 'Performance', 'Place', 'Date']
Types: ['text', 'real', 'text', 'text', 'text']
Sample row: ['1500 m', 2004.0, '3:58:28', 'Moscow, Russia', 'May 30, 2004']
SQL:

assistant: SELECT "Performance" FROM "Table" WHERE "Season" = 1999.0 AND "Place" = 'Bydgoszcz, Poland';