Enum MetadataCacheMode 

pub enum MetadataCacheMode {
    MetadataCacheModeUnspecified,
    Automatic,
    Manual,
}

Variants

MetadataCacheModeUnspecified

Unspecified metadata cache mode.

Automatic

Set this mode to trigger automatic background refresh of metadata cache from the external source. Queries will use the latest available cache version within the table’s maxStaleness interval.

Manual

Set this mode to enable triggering manual refresh of the metadata cache from external source. Queries will use the latest manually triggered cache version within the table’s maxStaleness interval.

Trait Implementations

impl Clone for MetadataCacheMode

fn clone(&self) -> MetadataCacheMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MetadataCacheMode

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

Formats the value using the given formatter.

impl Default for MetadataCacheMode

fn default() -> MetadataCacheMode

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for MetadataCacheMode

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for MetadataCacheMode

fn eq(&self, other: &MetadataCacheMode) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for MetadataCacheMode

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for MetadataCacheMode

impl StructuralPartialEq for MetadataCacheMode