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A minimal educational relational database management system (RDBMS) implemented in Java 17. The project demonstrates a custom SQL processing pipeline, including lexer, parser, semantic analysis, query planning, optimization, and execution. It features a storage engine with heap pages, a buffer pool, and supports indexing using B-trees and Hash
Relational database storage engine built from scratch in Java — disk-backed buffer pool with LRU eviction, B+ Tree index with leaf sibling pointers for range scans, volcano-model query executor with Block Nested Loop joins, and I/O cost analysis across buffer sizes