Struct IndexStorage 

pub struct IndexStorage<'a, 'txn, T: KVTransaction<'txn>> { /* private fields */ }

IndexStorage manages secondary index entries and lookups.

The two lifetime parameters serve distinct purposes:

• 'a: The borrow duration of the transaction reference
• 'txn: The lifetime parameter of the KVTransaction type itself

This separation is necessary to allow SqlTransaction to return IndexStorage instances while maintaining proper lifetime relationships with GATs.

Implementations

impl<'a, 'txn, T: KVTransaction<'txn>> IndexStorage<'a, 'txn, T>

pub fn new( txn: &'a mut T, index_id: u32, unique: bool, column_indices: Vec<usize>, ) -> Self

Create a new IndexStorage for the given index definition.

pub fn insert(&mut self, row: &[SqlValue], row_id: u64) -> Result<()>

Insert an index entry for the provided row values and RowID.

pub fn delete(&mut self, row: &[SqlValue], row_id: u64) -> Result<()>

Delete an index entry associated with the provided row values and RowID.

pub fn lookup(&mut self, value: &SqlValue) -> Result<Vec<u64>>

Equality lookup for single-column index.

pub fn lookup_composite(&mut self, values: &[SqlValue]) -> Result<Vec<u64>>

Equality lookup for composite index.

pub fn range_scan( &mut self, start: Option<&SqlValue>, end: Option<&SqlValue>, start_inclusive: bool, end_inclusive: bool, ) -> Result<IndexScanIterator<'_>>

Range lookup for single-column index.