user: Question: What is the lowest order with a Minister that is Joe Hockey?
Columns: ['Order', 'Minister', 'Party affiliation', 'Prime Minister', 'Term start', 'Term end', 'Term in office']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Barry Jones', 'Labor', 'Hawke', '19January1988', '4April1990', '2years, 75days']
SQL:

assistant: SELECT MIN("Order") FROM "Table" WHERE "Minister" = 'Joe Hockey';