user: Question: What is the sum of Rank when Pat Onstad was the goalkeeper?
Columns: ['Rank', 'Goalkeeper', 'Club', 'MINS', 'SHTS', 'W-L-T']
Types: ['real', 'text', 'text', 'real', 'real', 'text']
Sample row: [1.0, 'Pat Onstad', 'Houston Dynamo', 2098.0, 105.0, '10-4-9']
SQL:

assistant: SELECT SUM("Rank") FROM "Table" WHERE "Goalkeeper" = 'Pat Onstad';