//! Database provider abstraction trait.
//!
//! Corresponds to EFCore's database provider model, allowing multiple
//! database backends (PostgreSQL, MySQL, SQLite, etc.) to be plugged in.
//!
//! `DbValue` and `DbValueConvertError` live in `db_value.rs`; `TryFrom<DbValue>`
//! impls in `db_value_convert.rs`; provider traits (`ISqlGenerator`,
//! `IAsyncConnection`, `IDatabaseProvider`) in `traits.rs`.
pub use ;
pub use DbValueKey;
pub use ;