4 Commits

Author	SHA1	Message	Date
Jeremy Tregunna	72007886f7	feat: implement SQLite-inspired transaction model with reader-writer locks	2025-04-20 00:08:16 -06:00
Jeremy Tregunna	68283a5fed	feat: implement merged iterator across all levels with improved tombstone handling ... - Remove redundant MergedIterator (was just an alias for HierarchicalIterator) - Add IsTombstone method to all iterators to detect deletion markers - Enhance tombstone tracking in compaction manager with preservation options - Fix SSTable reader to properly handle tombstone entries - Update engine tests to directly verify tombstone behavior - Update TODO.md to mark merged iterator task as complete	2025-04-19 22:18:12 -06:00
Jeremy Tregunna	16780272dd	feat: implement tiered compaction with tombstone handling	2025-04-19 19:20:09 -06:00
Jeremy Tregunna	8dc23e5573	feat: implement engine package with Level 0 flush and read path ... - Create Engine structure to manage memtables, SSTables and WAL - Implement MemTable to SSTable flush mechanism - Add background flush goroutine for periodic flushing - Build iterator system for reading from multiple data sources - Create range-bounded iterators for queries - Implement unified hierarchical iterator in iterator package - Update TODO.md to mark Phase D as complete	2025-04-19 18:44:37 -06:00