Enum ScanPlan

Source

pub enum ScanPlan {
    SeqScan,
    PkLookup {
        pk_values: Vec<Value>,
    },
    PkRangeScan {
        start_key: Vec<u8>,
        range_conds: Vec<(BinOp, Value)>,
        num_pk_cols: usize,
    },
    IndexScan {
        index_name: String,
        idx_table: Vec<u8>,
        prefix: Vec<u8>,
        num_prefix_cols: usize,
        range_conds: Vec<(BinOp, Value)>,
        is_unique: bool,
        index_columns: Vec<u16>,
    },
    InvertedScan {
        kind: InvertedKind,
        idx_table: Vec<u8>,
        column_idx: u16,
        probe_entries: Vec<Vec<u8>>,
        recheck_expr: Expr,
        recheck_needed: bool,
    },
}

Variants§

§

SeqScan

§

PkLookup

Fields

§pk_values: Vec<Value>

§

PkRangeScan

Fields

§start_key: Vec<u8>

§range_conds: Vec<(BinOp, Value)>

§num_pk_cols: usize

§

IndexScan

Fields

§index_name: String

§idx_table: Vec<u8>

§prefix: Vec<u8>

§num_prefix_cols: usize

§range_conds: Vec<(BinOp, Value)>

§is_unique: bool

§index_columns: Vec<u16>

§

InvertedScan

Fields

§kind: InvertedKind

§idx_table: Vec<u8>

§column_idx: u16

§probe_entries: Vec<Vec<u8>>

§recheck_expr: Expr

§recheck_needed: bool

Trait Implementations§

Source §

impl Clone for ScanPlan

Source §

fn clone(&self) -> ScanPlan

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more

Source §

impl Debug for ScanPlan

Source §

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

§

impl UnwindSafe for ScanPlan

Blanket Implementations§

Source §

impl<T> Any for T
where T: 'static + ?Sized,

Source §

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

Source §

impl<T> Borrow<T> for T
where T: ?Sized,

Source §

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

Source §

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source §

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

Source §

impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

Source §

impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

Source §

impl<T> CloneToUninit for T
where T: Clone,

Source §

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

Source §

impl<T> From<T> for T

Source §

fn from(t: T) -> T

Returns the argument unchanged.

Source §

impl<T, U> Into for T
where U: From<T>,

Source §

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source §

impl<T> IntoEither for T

Source §

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

Source §

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

Source §