Enum ReadTier 

#[repr(i32)]
pub enum ReadTier {
    All = 0,
    BlockCache = 1,
    Persisted = 2,
    Memtable = 3,
}

Variants

All = 0

Reads data in memtable, block cache, OS cache or storage.

BlockCache = 1

Reads data in memtable or block cache.

Persisted = 2

Reads persisted data. When WAL is disabled, this option will skip data in memtable.

Memtable = 3

Reads data in memtable. Used for memtable only iterators.

Trait Implementations

impl Clone for ReadTier

fn clone(&self) -> ReadTier

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ReadTier

impl Debug for ReadTier

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ReadTier

Available on crate feature serde1 only.

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for ReadTier

impl PartialEq for ReadTier

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for ReadTier

Available on crate feature serde1 only.

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ReadTier