Struct UrsaOptions 

#[non_exhaustive]
pub struct UrsaOptions {
    pub index_storage_limit: ByteSize,
    pub notices: NoticeLevel,
}

Ursa’s settings (SET ursa.<name> = …).

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

index_storage_limit: ByteSize

The most bytes of graph indexes a .ursa database keeps on disk. Past it, the least recently used are removed to make room for a new one. Default 4GiB. SET in a writable database, it is stored in the database.

notices: NoticeLevel

Which notices to print on stderr: ‘on’ (slow index builds, and indexes not stored or evicted), ‘all’ (every index build, load and store) or ‘off’. Default on.

Trait Implementations

impl Clone for UrsaOptions

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl ConfigExtension for UrsaOptions

const PREFIX: &'static str = "ursa"

Configuration namespace prefix to use

impl ConfigField for UrsaOptions

fn set(&mut self, key: &str, value: &str) -> Result<()>

fn visit<V: Visit>( &self, v: &mut V, _key_prefix: &str, _description: &'static str, )

fn reset(&mut self, key: &str) -> Result<(), DataFusionError>

impl Debug for UrsaOptions

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for UrsaOptions

fn default() -> Self

Returns the “default value” for a type.

impl ExtensionOptions for UrsaOptions

fn as_any(&self) -> &dyn Any

Return self as Any

fn as_any_mut(&mut self) -> &mut dyn Any

Return self as Any

fn cloned(&self) -> Box<dyn ExtensionOptions>

Return a deep clone of this ExtensionOptions

fn set(&mut self, key: &str, value: &str) -> Result<()>

Set the given key, value pair

fn entries(&self) -> Vec<ConfigEntry>

Returns the ConfigEntry stored in this ExtensionOptions