user: Question: What is the total pick number of the los angeles dodgers, which has a lhp position before 1979?
Columns: ['Pick', 'Player', 'Team', 'Position', 'Year']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [13.0, 'Rick Leach', 'Detroit Tigers', 'OF', 1979.0]
SQL:

assistant: SELECT SUM("Pick") FROM "Table" WHERE "Team" = 'los angeles dodgers' AND "Position" = 'lhp' AND "Year" < 1979.0;