//! Append-only multi-segment columnar store.
//!
//! Each table owns a `ColSegmentStore` holding an ordered list of immutable
//! `Segment`s (each backed by an existing `ColumnarSSTable`). Writes append
//! delta segments (O(1)); reads multi-way merge (O(1) memory); a background
//! compactor merges segments to bound the count.
//!
//! Naming: this is distinct from `storage::columnar::ColumnarStore` (the
//! time-series store). This module serves tables using the v0.3.0 columnar
//! SSTable format with multi-segment + compaction semantics.
pub use ;
pub use MergeCursor;
pub use Segment;
pub use ColSegmentStore;