Rich Raposa Director, Global Learning, ClickHouse
Projections are a query-optimization feature of MergeTree tables in ClickHouse that store data in a different format than the defined sort order. Useful use cases include the ability to sort the data in a different order than the primary key, and also to pre-aggregate columns. One nice benefit of projections over materialized views is that a projection does not require a separate table, so users simply query the original table and ClickHouse decides at query time if a projection can improve the performance.

Under-the-Hood: ClickHouse Incremental Materialized Views and Dictionaries
Maruthi Lokanathan, Solution Architect at ClickHouse Derek Chia, Principal TAM Architect at ClickHouse

LogHouse, Observability for ClickHouse Cloud
Get an insider’s look at LogHouse, the ClickHouse-powered logging platform that drives observability for ClickHouse Cloud.

Powering Feature Stores with ClickHouse
Mark Needham Principal Product Marketing Engineer, ClickHouse