Type Alias QueryCommitments

pub type QueryCommitments<C> = IndexMap<TableRef, TableCommitment<C>, BuildHasherDefault<AHasher>>;

The commitments for all of the tables in a query.

Simply maps table refs to table commitments, and implements the following traits…

• MetadataAccessor
• CommitmentAccessor
• SchemaAccessor

Aliased Type

pub struct QueryCommitments<C> { /* private fields */ }

Trait Implementations

impl<C: Commitment> CommitmentAccessor<C> for QueryCommitments<C>

Panics

Panics if the commitment for the table or column cannot be found.

fn get_commitment(&self, table_ref: &TableRef, column_id: &Ident) -> C

Return the full table column commitment

impl<C: Commitment> MetadataAccessor for QueryCommitments<C>

fn get_length(&self, table_ref: &TableRef) -> usize

Return the data span’s length in the table (not the full table length)

fn get_offset(&self, table_ref: &TableRef) -> usize

Return the data span’s offset in the table

impl<C: Commitment> QueryCommitmentsExt<C> for QueryCommitments<C>

fn from_accessor_with_max_bounds( columns: impl IntoIterator<Item = ColumnRef>, accessor: &(impl CommitmentAccessor<C> + SchemaAccessor), ) -> Self

Create a new QueryCommitments from a collection of columns and an accessor.

impl<C: Commitment> SchemaAccessor for QueryCommitments<C>

fn lookup_schema(&self, table_ref: &TableRef) -> Vec<(Ident, ColumnType)>

Panics

Panics if the column metadata cannot be found.

fn lookup_column( &self, table_ref: &TableRef, column_id: &Ident, ) -> Option<ColumnType>

Lookup the column’s data type in the specified table