user: Question: What is the average Spike, when Name is gustavo porporatto, and when Block is greater than 323?
Columns: ['Name', 'Date of Birth', 'Height', 'Weight', 'Spike', 'Block']
Types: ['text', 'text', 'real', 'real', 'real', 'real']
Sample row: ['Marcos Milinkovic', '22.12.1971', 205.0, 100.0, 355.0, 338.0]
SQL:

assistant: SELECT AVG("Spike") FROM "Table" WHERE "Name" = 'gustavo porporatto' AND "Block" > 323.0;