Struct MigrateOptions 

pub struct MigrateOptions {
    pub backup: bool,
    pub backup_options: Option<DbOptions>,
    pub forward_compatible: Option<fn(&Connection) -> bool>,
    pub optimize_after: bool,
}

Fields

backup: bool

Take a pre-migration backup when migrating an existing (version > 0) on-disk database.

backup_options: Option<DbOptions>

Key source for the backup (SQLCipher); DbOptions::open_writer_migrated fills this in.

forward_compatible: Option<fn(&Connection) -> bool>

For a database newer than this build: true means the subset this build reads/writes is intact, so open it read-write without migrating.

optimize_after: bool

Refresh planner statistics after migrating (PRAGMA optimize).

Trait Implementations

impl Clone for MigrateOptions

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Default for MigrateOptions

fn default() -> Self

Returns the “default value” for a type.