user: Question: What are the number of days in 1945 where the constituent was Heywood and Radcliffe?
Columns: ['Candidate', 'Party', 'Constituency', 'Year', 'Days']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Alfred Dobbs', 'Labour', 'Smethwick', '1945', '1 1']
SQL:

assistant: SELECT "Days" FROM "Table" WHERE "Year" = '1945' AND "Constituency" = 'Heywood and Radcliffe';