ClickHouse introduces lazy materialization for faster, leaner queries

April 22, 2025, 1:21 pm

ClickHouse has unveiled its “lazy materialization” feature designed to cut down data reads and drastically reduce memory usage during query execution on enormous tables. This smart optimization reads only the demanded columns, slashing query times significantly and proving a robust enhancement for modern columnar databases.


simonwillison.net / ClickHouse gets lazier (and faster): Introducing lazy materialization

ClickHouse gets lazier (and faster): Introducing lazy materialization Tom Schreiber describe's the latest optimization in ClickHouse, and in the process explores a whole bunch of interesting characteristics of columnar datastores generally. As I understand it, the new "lazy materialization" feature...

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

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