Trait Sqlite3Metadata 

pub unsafe trait Sqlite3Metadata: Sqlite3Api {
    // Required methods
    unsafe fn table_column_metadata(
        &self,
        db: NonNull<Self::Db>,
        db_name: Option<&str>,
        table: &str,
        column: &str,
    ) -> Result<ColumnMetadata>;
    unsafe fn column_decltype(
        &self,
        stmt: NonNull<Self::Stmt>,
        col: i32,
    ) -> Option<RawBytes>;
    unsafe fn column_name(
        &self,
        stmt: NonNull<Self::Stmt>,
        col: i32,
    ) -> Option<RawBytes>;
    unsafe fn column_table_name(
        &self,
        stmt: NonNull<Self::Stmt>,
        col: i32,
    ) -> Option<RawBytes>;
}

Optional backend extension for metadata helpers.

Safety

Implementations must ensure returned raw metadata pointers are valid for the documented SQLite lifetime and ownership rules.

Required Methods

unsafe fn table_column_metadata( &self, db: NonNull<Self::Db>, db_name: Option<&str>, table: &str, column: &str, ) -> Result<ColumnMetadata>

unsafe fn column_decltype( &self, stmt: NonNull<Self::Stmt>, col: i32, ) -> Option<RawBytes>

unsafe fn column_name( &self, stmt: NonNull<Self::Stmt>, col: i32, ) -> Option<RawBytes>

unsafe fn column_table_name( &self, stmt: NonNull<Self::Stmt>, col: i32, ) -> Option<RawBytes>

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors