user: Question: What is the record for the 20000 m walk?
Columns: ['Event', 'Record', 'Athlete', 'Nationality', 'Date']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['100 m', '9.79 (+0.6 m/s)', 'Usain Bolt', 'Jamaica', '7 June 2012']
SQL:

assistant: SELECT "Record" FROM "Table" WHERE "Event" = '20000 m walk';