user: Question: Which Partner has a Date of 12 July 2009?
Columns: ['Outcome', 'Date', 'Surface', 'Partner', 'Opponents', 'Score']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Runner-up', '17 August 2008', 'Hard', 'Sorana Cîrstea', 'Květa Peschke Lisa Raymond', '6–4, 5–7, [7–10]']
SQL:

assistant: SELECT "Partner" FROM "Table" WHERE "Date" = '12 July 2009';