How to build a raw query with identifier unquoted?

[tisonkun]

It seems the default manner is that the result query will with all identifiers quoted, like:

SELECT "database_id", "database_name" FROM "databases" WHERE "database_id" = 7890

I'd like instead print the query with idents unquoted, like:

SELECT database_id, database_name FROM databases WHERE database_id = 7890

Is there some options for this?

The Rust code is like:

#[derive(Debug, Copy, Clone)]
enum DatabaseTable {
    Table,
    DatabaseId,
    DatabaseName,
}

impl Iden for DatabaseTable {
    fn unquoted(&self, s: &mut dyn Write) {
        write!(s, "{}", match self {
            DatabaseTable::Table => "databases",
            DatabaseTable::DatabaseId => "database_id",
            DatabaseTable::DatabaseName => "database_name",
        })
        .unwrap();
    }
}

const fn database_cols() -> [DatabaseTable; 2] {
    [DatabaseTable::DatabaseId, DatabaseTable::DatabaseName]
}

    Query::select()
        .columns(database_cols())
        .from(DatabaseTable::Table)
        .and_where(Expr::col(DatabaseTable::DatabaseId).eq(database_id))
        .to_string(PostgresQueryBuilder)