Crate corium_db 

Immutable database values: time views, covering-index access, naming, per-attribute statistics, and bootstrap metadata.

A Db is a value: cheap to clone, never mutated in place. Time views (Db::as_of, Db::since, Db::history) wrap the same recorded datoms with a different fold policy — no copying of facts. The four covering indexes for a view are materialized lazily on first read and shared by every clone of that value.

Structs

AttrStats

Per-attribute statistics driving planner selectivity estimates.

Db

An immutable value of a database at one basis transaction and time view.

DbStats

Counts over one database view.

Idents

Registry of :db/ident names for entities (attributes chiefly).

PlannerStats

Whole-view statistics for the query planner.

Enums

DbView

Time-view selector for a database value (see docs/design/time-model.md).

Constants

FIRST_USER_ID

The first user-assignable sequence number. Lower ids are reserved for bootstrap data.

Functions

attribute

Convenience constructor for schema attributes used during bootstrap/tests.

avet_covered

Whether the attribute participates in the AVET covering index.

key_prefix

Builds the encoded key prefix for a partial datom in one index order.