#columnar-databases on Hacker News

2 stories tagged columnar-databases, newest first.

Screenshot of clickhouse.com: ClickHouse gets lazier and faster: Introducing lazy materialization

ClickHouse gets lazier and faster: Introducing lazy materialization (clickhouse.com)

340 points by tbragin 1 year ago | 107 comments

ClickHouse engineering blog post by Tom Schreiber introducing lazy materialization, a query optimization that defers reading column data to speed up queries.

clickhouse lazy-materialization query-optimization olap

Screenshot of clickhouse.com: A new JSON data type for ClickHouse

A new JSON data type for ClickHouse (clickhouse.com)

362 points by markhneedham 2 years ago | 111 comments

ClickHouse engineering blog post by Pavel Kruglov explaining how the team built a new JSON data type for the ClickHouse database.

clickhouse json columnar-databases olap

#columnar-databases on Hacker News

ClickHouse gets lazier and faster: Introducing lazy materialization(clickhouse.com)

A new JSON data type for ClickHouse(clickhouse.com)

ClickHouse gets lazier and faster: Introducing lazy materialization (clickhouse.com)

A new JSON data type for ClickHouse (clickhouse.com)