user: Question: List the rider for the Doncaster Handicap compeition.
Columns: ['Result', 'Date', 'Race', 'Venue', 'Group', 'Distance', 'Weight (kg)', 'Jockey', 'Winner/2nd']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['2nd', '30 Aug 2008', 'McNeil Stakes', 'Caulfield', 'G3', '1200 m', '55', 'M. Rodd', '1st - Sugar Babe']
SQL:

assistant: SELECT "Jockey" FROM "Table" WHERE "Race" = 'Doncaster Handicap';