Listing tables in rust never iterates

[mgrazianoc]

The following code tries to get the current tables available in the database, before deciding whether it should download it from elsewhere.

let mut table_exists = false;
let table_name = String::from("test");
let mut stmt = conn.prepare("SHOW TABLES;")?;
let _ = stmt.query_map([], |row| {
    let t: String = row.get("name")?;
    if t == table_name {
        table_exists = true;
    }
    Ok(())
})?;

But, the query_map call never iterates, the system continues to download the table, and it raises that the table test already exists.

I've tested these behaviors on duckdb 0.9.0, 0.9.2 and 0.10.0.

[era127]

I think the iterator is lazy, try to consume the result of iterator with collect.

[mgrazianoc]

Yep, it was that, thanks