Struct Prepare 

pub struct Prepare(/* private fields */);

A collection of flags use to prepare a statement.

Implementations

impl Prepare

pub const EMPTY: Self

No flags.

This provides the default behavior when preparing a statement.

pub const PERSISTENT: Self

The PERSISTENT flag is a hint to the query planner that the prepared statement will be retained for a long time and probably reused many times. Without this flag, Connection::prepare assume that the prepared statement will be used just once or at most a few times and then destroyed relatively soon.

The current implementation acts on this hint by avoiding the use of lookaside memory so as not to deplete the limited store of lookaside memory. Future versions of SQLite may act on this hint differently.

pub const NORMALIZE: Self

The NORMALIZE flag is a no-op. This flag used to be required for any prepared statement that wanted to use the normalized sql interface. However, the normalized sql interface is now available to all prepared statements, regardless of whether or not they use this flag.

pub const NO_VTAB: Self

The NO_VTAB flag causes the SQL compiler to return an error if the statement uses any virtual tables.

Trait Implementations

impl BitOr for Prepare

type Output = Prepare

The resulting type after applying the | operator.

fn bitor(self, rhs: Self) -> Self::Output

Performs the | operation.