user: Question: What's the total number of picks for McKinney High School?
Columns: ['Pick', 'Player', 'Team', 'Position', 'School']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [31.0, 'Adam Miller', 'Cleveland Indians', 'RHP', 'McKinney High School']
SQL:

assistant: SELECT SUM("Pick") FROM "Table" WHERE "School" = 'McKinney High School';