user: Question: Which mixed doubles was featured in 2006?
Columns: ['Year', "Men's singles", "Women's singles", "Men's doubles", "Women's doubles", 'Mixed doubles']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [2012.0, 'Anand Pawar', 'Sayaka Takahashi', 'Takeshi Kamura Keigo Sonoda', 'Naoko Fukuman Kurumi Yonao', 'Marcus Ellis Gabrielle White']
SQL:

assistant: SELECT "Mixed doubles" FROM "Table" WHERE "Year" = 2006.0;