user: Question: What was the PAC-10 record of the game played on April 20?
Columns: ['#', 'Date', 'Opponent', 'Site/Stadium', 'Score', 'Win', 'Loss', 'Save', 'Attendance', 'Overall Record', 'Pac-10 Record']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'real', 'text', 'text']
Sample row: [22.0, 'April 1', 'Stanford', 'Jackie Robinson Stadium', '6-5 10', 'D. Klein (2-0)', 'A. Pracher (4-1)', 'None', 921.0, '22–0', '1–0']
SQL:

assistant: SELECT "Pac-10 Record" FROM "Table" WHERE "Date" = 'April 20';