docs/clickhouse.md - Quarry

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# ClickHouse

**Licence:** Apache-2.0 | **Language:** C++ | **Source:** https://github.com/ClickHouse/ClickHouse

## Role

Columnar OLAP database

## Why it's here

Aggregates billions of rows in milliseconds. The engine you reach for when queries on a row store stop finishing.

## Running it

Started by `docker compose up -d` on port 8123.

```bash
./fetch-sources.sh ./sources
tar xzf ./sources/ClickHouse.tar.gz -C ./sources
```