Struct IndexInfo 

pub struct IndexInfo {
    pub key_info: IndexKeyInfo,
    pub has_rowid: bool,
    pub num_cols: usize,
    pub is_unique: bool,
}

Metadata about an index, used for handling and comparing index keys.

This struct provides information about the sorting order of columns, whether the index includes a row ID, and the total number of columns in the index.

Fields

key_info: IndexKeyInfo

Specifies the sorting order (ascending or descending) for each column in the index.

has_rowid: bool

Indicates whether the index includes a row ID column.

num_cols: usize

The total number of columns in the index, including the row ID column if present.

is_unique: bool

Indicates whether index rows should be unique.

Implementations

impl IndexInfo

pub fn key_info_in<A: ConcurrentAllocator>(alloc: A) -> IndexKeyInfo

pub fn key_info_from_iter_in<A, I>( key_info: I, _alloc: A, ) -> Result<IndexKeyInfo, TryReserveError>

where A: ConcurrentAllocator, I: IntoIterator<Item = KeyInfo>,

pub fn new<I>( key_info: I, has_rowid: bool, num_cols: usize, is_unique: bool, ) -> Result<Self, TryReserveError>

where I: IntoIterator<Item = KeyInfo>,

pub fn new_in<A, I>( key_info: I, has_rowid: bool, num_cols: usize, is_unique: bool, alloc: A, ) -> Result<Self, TryReserveError>

where A: ConcurrentAllocator, I: IntoIterator<Item = KeyInfo>,

pub fn new_from_index(index: &Index) -> Result<Self, TryReserveError>

pub fn new_from_index_in<A: ConcurrentAllocator>( index: &Index, alloc: A, ) -> Result<Self, TryReserveError>

Trait Implementations

impl Clone for IndexInfo

fn clone(&self) -> IndexInfo

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IndexInfo

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

Formats the value using the given formatter.

impl Default for IndexInfo

fn default() -> Self

Returns the “default value” for a type.

impl Eq for IndexInfo

impl PartialEq for IndexInfo

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for IndexInfo