user: Question: What was the date when Troy Murphy (15), got high rebounds? 
Columns: ['Game', 'Date', 'Team', 'Score', 'High points', 'High rebounds', 'High assists', 'Location Attendance', 'Record']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [32.0, 'January 2', '@ New York', 'W 105–103 (OT)', 'Jarrett Jack (29)', 'Troy Murphy (18)', 'Danny Granger (6)', 'Madison Square Garden 19,763', '11–21']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "High rebounds" = 'Troy Murphy (15)';