RCHowell

duckdb

DuckDB is an analytical in-process SQL database management system

presto

The official home of the Presto distributed SQL query engine for big data

arrow

Apache Arrow is a multi-language toolbox for accelerated data interchange and in-memory processing

trino

Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)

prql

PRQL is a modern language for transforming data — a simple, powerful, pipelined SQL replacement

Exposed

Kotlin SQL Framework

mumble

Mumble is an open-source, low-latency, high quality voice chat software.

tridactyl

A Vim-like interface for Firefox, inspired by Vimperator/Pentadactyl.

arrow-datafusion

Apache DataFusion SQL Query Engine

codehike

Marvellous code walkthroughs

calcite

Apache Calcite

YouPlot

A command line tool that draw plots on the terminal.

sqlparser-rs

Extensible SQL Lexer and Parser for Rust

libsixel

A SIXEL encoder/decoder implementation derived from kmiya's sixel (https://github.com/saitoha/sixel).

auto_route_library

Flutter route generator

jline3

JLine is a Java library for handling console input.

zed

A novel data lake based on super-structured data

substrait

A cross platform way to express data transformation, relational algebra, standardized record expression and plans.

ScratchDB

Scratch is an open-source alternative to BigQuery, Redshift, and Snowflake. Runs on Clickhouse.

ClickBench

ClickBench: a Benchmark For Analytical Databases

sqlline

Shell for issuing SQL to relational databases via JDBC

how-query-engines-work

This is the companion repository for the book How Query Engines Work.

pretty_dio_logger

substrait-java

tpcds

TPC-DS queries

sqlbench-ds

SQL Benchmark derived from TPC-DS

piqel

An implementation of PartiQL written in Rust

partiql-lang

The PartiQL language specification

partiql-tests

Test data for checking conformance to the PartiQL specification.

kanonic

A fast LR(1) parser generator for the JVM.