//! Columnar Segment Store for time-series data.
//!
//! Stores TimeSeries table data in immutable columnar segment files with
//! Gorilla compression. Provides 10-12x compression vs bincode row storage,
//! O(1) TTL GC (delete whole segment files), and column projection.
//!
//! # Architecture
//! ```text
//! Write Path:
//! ingest() → ColumnarWriteBuffer → flush → SegmentFile (.mcdb)
//! ↓
//! SegmentManager (catalog)
//!
//! Read Path:
//! query_time_range() → prune segments → column projection → decode → Row
//!
//! TTL GC:
//! gc_expired() → delete segment files with max_ts < cutoff (O(1))
//! ```
pub use ColumnarConfig;
pub use ColumnarStore;