user: Question: When is the earliest year for it is in barcelona, spain?
Columns: ['Year', 'Competition', 'Venue', 'Position', 'Event']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [2000.0, 'World Junior Championships', 'Santiago , Chile', '5th', '4 × 400 m relay']
SQL:

assistant: SELECT MIN("Year") FROM "Table" WHERE "Venue" = 'barcelona, spain';