user: Question: what is the minimum pick # where position is Defensive Tackle
Columns: ['Pick #', 'NFL Team', 'Player', 'Position', 'College']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [21.0, 'Cleveland Browns', 'Clifford Charlton', 'Outside Linebacker', 'Florida']
SQL:

assistant: SELECT MIN("Pick #") FROM "Table" WHERE "Position" = 'Defensive Tackle';