vectorized-execution

[SIGMOD'25] We show the data chunk compaction problem in vectorized execution, and propose practical compaction solutions.

A high-performance, distributed SQL query engine built in Rust. Powered by Apache Arrow for vectorized execution, it supports complex SQL (JOINs, CTEs, Window Functions), distributed processing, and Arrow Flight.

Relational execution engine in C++20 with iterator (Volcano), vectorized, and compiled (codegen-to-C) execution over one operator set - benchmarked on identical plans (12.7x vectorized win).

Distributed SQL analytics engine for Go: embed it in a Go application, or deploy it as a fault-tolerant query cluster with durable S3 exchange. Vectorized columnar OLAP over Parquet and Apache Iceberg; PostgreSQL wire protocol; no JVM, no CGo. Built for network telemetry: first-class IPv4/IPv6/CIDR/MAC/Port/Protocol types, 100+ network functions.

Lamina SQL: vectorized analytical SQL engine from scratch in Rust -- parsing, query planning, predicate pushdown, columnar execution, hash joins, benchmarked on TPC-H-shaped workloads

A columnar SQL query engine written from the wire up in Rust — hand-written parser, cost-based optimiser, vectorised execution, and its own on-disk format with zone-map pruning.

We integrate data chunk compaction methods into duckdb, for an end-to-end benchmark.

A SQL engine that moves typed column batches through vector operators and chooses physical plans by estimated cost

C++17 vector-at-a-time analytical engine with null bitmaps, selection vectors, hash aggregation, joins, and scalar differential tests

Basalt — a from-scratch hybrid OLTP/OLAP (HTAP) database engine in C++17, columnar by nature, with a browser Workbench and WASM playground; benchmarked vs SQLite, DuckDB, and MySQL

Low-level systems engineering analysis of DuckDB - query execution path, vectorized execution, benchmarking, and failure analysis.

Research prototype for layered PostgreSQL representations and compact batch execution.

A vectorized in-memory analytical query engine in C++20 - columnar storage, rule-based optimizer with predicate/projection pushdown, hash joins. Measured, not asserted.

Dependency-free C++23 analytical kernels with runtime scalar, AVX2, AVX-512, and NEON dispatch.

A distributed HTAP SQL engine with dual rowstore/columnstore, Raft consensus, and vectorized execution.

Vectorized executor to speed up PostgreSQL