dumbo_rocks_db 0.2.3

RocksDB数据库操作模块，提供类型安全的列族(Column Family)抽象。
Documentation 
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pub fn generate_timestamp_index(
    timestamp: chrono::DateTime<chrono::Utc>,
) -> String {
    let max_timestamp = i64::MAX;
    let inverted_timestamp = max_timestamp - timestamp.timestamp();
    format!("{}", inverted_timestamp)
}